Bump to 3.30

Fix #1047

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+[*.py]
+max_line_length = 119

.travis.yml

@@ -1,34 +1,18 @@
 language: python
 sudo: false
+os: linux
+dist: xenial
 matrix:
   include:
-    - os: linux
-      dist: xenial
-      python: "nightly"
-    - os: linux
-      dist: xenial
-      python: "3.8-dev"
-    - os: linux
-      dist: xenial
-      python: "3.7-dev"
-    - os: linux
-      dist: xenial
-      python: "3.7"
-    - os: linux
-      dist: trusty
-      python: "3.6-dev"
-    - os: linux
-      dist: trusty
-      python: "3.6"
-    - os: linux
-      dist: trusty
-      python: "3.5"
-    - os: linux
-      dist: trusty
-      python: "3.4"
-    - os: linux
-      dist: trusty
-      python: "2.7"
+    - python: "nightly"
+    - python: "3.8-dev"
+    - python: "3.8"
+    - python: "3.7-dev"
+    - python: "3.7"
+    - python: "3.6-dev"
+    - python: "3.6"
+    - python: "3.5"
+    - python: "2.7"
     - os: osx
       language: generic
   allow_failures:
@@ -46,6 +30,7 @@ addons:
 before_install:
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then rm -rf /usr/local/include/c++; fi
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then brew update; fi
+  - if [[ $TRAVIS_OS_NAME == "osx" ]]; then brew unlink python@2; fi
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then brew upgrade python; fi
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then pip3 install virtualenv; fi
   - if [[ $TRAVIS_OS_NAME == "osx" ]]; then virtualenv venv -p python3; fi
@@ -60,7 +45,7 @@ script:
   - flake8
   - export COVERAGE_PYTHON_VERSION=python-${TRAVIS_PYTHON_VERSION:0:1}
   - export RUN_TESTS="coverage run --source=thefuck,tests -m py.test -v --capture=sys tests"
-  - if [[ $TRAVIS_PYTHON_VERSION == 3.7 && $TRAVIS_OS_NAME != "osx" ]]; then $RUN_TESTS --enable-functional; fi
-  - if [[ $TRAVIS_PYTHON_VERSION != 3.7 || $TRAVIS_OS_NAME == "osx" ]]; then $RUN_TESTS; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 3.8 && $TRAVIS_OS_NAME != "osx" ]]; then $RUN_TESTS --enable-functional; fi
+  - if [[ $TRAVIS_PYTHON_VERSION != 3.8 || $TRAVIS_OS_NAME == "osx" ]]; then $RUN_TESTS; fi
 after_success:
-  - if [[ $TRAVIS_PYTHON_VERSION == 3.7 && $TRAVIS_OS_NAME != "osx" ]]; then coveralls; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 3.8 && $TRAVIS_OS_NAME != "osx" ]]; then coveralls; fi

CONTRIBUTING.md

@@ -26,6 +26,8 @@ fixes, etc.
 
 # Developing
 
+[Create and activate a Python 3 virtual environment.](https://docs.python.org/3/tutorial/venv.html)
+
 Install `The Fuck` for development:
 
 ```bash

README.md

@@ -145,7 +145,7 @@ eval $(thefuck --alias FUCK)
 Changes are only available in a new shell session. To make changes immediately
 available, run `source ~/.bashrc` (or your shell config file like `.zshrc`).
 
-To run fixed commands without confirmation, use the `--yeah` option (or just `-y` for short):
+To run fixed commands without confirmation, use the `--yeah` option (or just `-y` for short, or `--hard` if you're especially frustrated):
 
 ```bash
 fuck --yeah
@@ -182,7 +182,9 @@ following rules are enabled by default:
 * `cd_mkdir` – creates directories before cd'ing into them;
 * `cd_parent` – changes `cd..` to `cd ..`;
 * `chmod_x` – add execution bit;
+* `choco_install` – append common suffixes for chocolatey packages;
 * `composer_not_command` – fixes composer command name;
+* `cp_create_destination` – creates a new directory when you attempt to `cp` or `mv` to a non existent one
 * `cp_omitting_directory` – adds `-a` when you `cp` directory;
 * `cpp11` – adds missing `-std=c++11` to `g++` or `clang++`;
 * `dirty_untar` – fixes `tar x` command that untarred in the current directory;
@@ -191,6 +193,7 @@ following rules are enabled by default:
 * `django_south_merge` – adds `--merge` to inconsistent django south migration;
 * `docker_login` – executes a `docker login` and repeats the previous command;
 * `docker_not_command` – fixes wrong docker commands like `docker tags`;
+* `docker_image_being_used_by_container` ‐ removes the container that is using the image before removing the image;
 * `dry` – fixes repetitions like `git git push`;
 * `fab_command_not_found` – fix misspelled fabric commands;
 * `fix_alt_space` – replaces Alt+Space with Space character;
@@ -200,6 +203,7 @@ following rules are enabled by default:
 * `git_add_force` &ndash; adds `--force` to `git add <pathspec>...` when paths are .gitignore'd;
 * `git_bisect_usage` &ndash; fixes `git bisect strt`, `git bisect goood`, `git bisect rset`, etc. when bisecting;
 * `git_branch_delete` &ndash; changes `git branch -d` to `git branch -D`;
+* `git_branch_delete_checked_out` &ndash; changes `git branch -d` to `git checkout master && git branch -D` when trying to delete a checked out branch;
 * `git_branch_exists` &ndash; offers `git branch -d foo`, `git branch -D foo` or `git checkout foo` when creating a branch that already exists;
 * `git_branch_list` &ndash; catches `git branch list` in place of `git branch` and removes created branch;
 * `git_checkout` &ndash; fixes branch name or creates new branch;
@@ -226,12 +230,13 @@ following rules are enabled by default:
 * `git_rm_recursive` &ndash; adds `-r` when you try to `rm` a directory;
 * `git_rm_staged` &ndash;  adds `-f` or `--cached` when you try to `rm` a file with staged changes
 * `git_rebase_merge_dir` &ndash; offers `git rebase (--continue | --abort | --skip)` or removing the `.git/rebase-merge` dir when a rebase is in progress;
-* `git_remote_seturl_add` &ndash; runs `git remote add` when `git remote set_url` on nonexistant remote;
+* `git_remote_seturl_add` &ndash; runs `git remote add` when `git remote set_url` on nonexistent remote;
 * `git_stash` &ndash; stashes your local modifications before rebasing or switching branch;
 * `git_stash_pop` &ndash; adds your local modifications before popping stash, then resets;
 * `git_tag_force` &ndash; adds `--force` to `git tag <tagname>` when the tag already exists;
 * `git_two_dashes` &ndash; adds a missing dash to commands like `git commit -amend` or `git rebase -continue`;
 * `go_run` &ndash; appends `.go` extension when compiling/running Go programs;
+* `go_unknown_command` &ndash; fixes wrong `go` commands, for example `go bulid`;
 * `gradle_no_task` &ndash; fixes not found or ambiguous `gradle` task;
 * `gradle_wrapper` &ndash; replaces `gradle` with `./gradlew`;
 * `grep_arguments_order` &ndash; fixes `grep` arguments order for situations like `grep -lir . test`;
@@ -258,7 +263,7 @@ following rules are enabled by default:
 * `missing_space_before_subcommand` &ndash; fixes command with missing space like `npminstall`;
 * `mkdir_p` &ndash; adds `-p` when you try to create a directory without parent;
 * `mvn_no_command` &ndash; adds `clean package` to `mvn`;
-* `mvn_unknown_lifecycle_phase` &ndash; fixes misspelled lifecycle phases with `mvn`;
+* `mvn_unknown_lifecycle_phase` &ndash; fixes misspelled life cycle phases with `mvn`;
 * `npm_missing_script` &ndash; fixes `npm` custom script name in `npm run-script <script>`;
 * `npm_run_script` &ndash; adds missing `run-script` for custom `npm` scripts;
 * `npm_wrong_command` &ndash; fixes wrong npm commands like `npm urgrade`;
@@ -276,7 +281,8 @@ following rules are enabled by default:
 * `quotation_marks` &ndash; fixes uneven usage of `'` and `"` when containing args';
 * `path_from_history` &ndash; replaces not found path with similar absolute path from history;
 * `react_native_command_unrecognized` &ndash; fixes unrecognized `react-native` commands;
-* `remove_trailing_cedilla` &ndash; remove trailling cedillas `ç`, a common typo for european keyboard layouts;
+* `remove_shell_prompt_literal` &ndash; remove leading shell prompt symbol `$`, common when copying commands from documentations;
+* `remove_trailing_cedilla` &ndash; remove trailing cedillas `ç`, a common typo for european keyboard layouts;
 * `rm_dir` &ndash; adds `-rf` when you try to remove a directory;
 * `scm_correction` &ndash; corrects wrong scm like `hg log` to `git log`;
 * `sed_unterminated_s` &ndash; adds missing '/' to `sed`'s `s` commands;
@@ -286,6 +292,7 @@ following rules are enabled by default:
 * `sudo_command_from_user_path` &ndash; runs commands from users `$PATH` with `sudo`;
 * `switch_lang` &ndash; switches command from your local layout to en;
 * `systemctl` &ndash; correctly orders parameters of confusing `systemctl`;
+* `terraform_init.py` &ndash; run `terraform init` before plan or apply;
 * `test.py` &ndash; runs `py.test` instead of `test.py`;
 * `touch` &ndash; creates missing directories before "touching";
 * `tsuru_login` &ndash; runs `tsuru login` if not authenticated or session expired;
@@ -316,8 +323,10 @@ The following rules are enabled by default on specific platforms only:
 * `brew_unknown_command` &ndash; fixes wrong brew commands, for example `brew docto/brew doctor`;
 * `brew_update_formula` &ndash; turns `brew update <formula>` into `brew upgrade <formula>`;
 * `dnf_no_such_command` &ndash; fixes mistyped DNF commands;
+* `nixos_cmd_not_found` &ndash; installs apps on NixOS;
 * `pacman` &ndash; installs app with `pacman` if it is not installed (uses `yay` or `yaourt` if available);
 * `pacman_not_found` &ndash; fixes package name with `pacman`, `yay` or `yaourt`.
+* `yum_invalid_operation` &ndash; fixes invalid `yum` calls, like `yum isntall vim`;
 
 The following commands are bundled with *The Fuck*, but are not enabled by
 default:
@@ -348,8 +357,8 @@ Your rule should not change `Command`.
 
 **Rules api changed in 3.0:** To access a rule's settings, import it with
  `from thefuck.conf import settings`
-  
-`settings` is a special object assembled from `~/.config/thefuck/settings.py`, 
+
+`settings` is a special object assembled from `~/.config/thefuck/settings.py`,
 and values from env ([see more below](#settings)).
 
 A simple example rule for running a script with `sudo`:
@@ -383,7 +392,7 @@ requires_output = True
 Several *The Fuck* parameters can be changed in the file `$XDG_CONFIG_HOME/thefuck/settings.py`
 (`$XDG_CONFIG_HOME` defaults to `~/.config`):
 
-* `rules` &ndash; list of enabled rules, by default `thefuck.conf.DEFAULT_RULES`;
+* `rules` &ndash; list of enabled rules, by default `thefuck.const.DEFAULT_RULES`;
 * `exclude_rules` &ndash; list of disabled rules, by default `[]`;
 * `require_confirmation` &ndash; requires confirmation before running new command, by default `True`;
 * `wait_command` &ndash; max amount of time in seconds for getting previous command output;

appveyor.yml

@@ -3,7 +3,6 @@ build: false
 environment:
   matrix:
     - PYTHON: "C:/Python27"
-    - PYTHON: "C:/Python34"
     - PYTHON: "C:/Python35"
     - PYTHON: "C:/Python36"
     - PYTHON: "C:/Python37"

release.py

@@ -32,6 +32,6 @@ call('git push --tags', shell=True)
 
 env = os.environ
 env['CONVERT_README'] = 'true'
-call('rm -rf dist/*')
+call('rm -rf dist/*', shell=True, env=env)
 call('python setup.py sdist bdist_wheel', shell=True, env=env)
 call('twine upload dist/*', shell=True, env=env)

setup.py

@@ -26,12 +26,12 @@ if version < (2, 7):
     print('thefuck requires Python version 2.7 or later' +
           ' ({}.{} detected).'.format(*version))
     sys.exit(-1)
-elif (3, 0) < version < (3, 4):
-    print('thefuck requires Python version 3.4 or later' +
+elif (3, 0) < version < (3, 5):
+    print('thefuck requires Python version 3.5 or later' +
           ' ({}.{} detected).'.format(*version))
     sys.exit(-1)
 
-VERSION = '3.29'
+VERSION = '3.30'
 
 install_requires = ['psutil', 'colorama', 'six', 'decorator', 'pyte']
 extras_require = {':python_version<"3.4"': ['pathlib2'],

tests/rules/test_apt_invalid_operation.py

@@ -76,6 +76,45 @@ apt_get_operations = ['update', 'upgrade', 'install', 'remove', 'autoremove',
                       'dselect-upgrade', 'clean', 'autoclean', 'check',
                       'changelog', 'download']
 
+new_apt_get_help = b'''apt 1.6.12 (amd64)
+Usage: apt-get [options] command
+       apt-get [options] install|remove pkg1 [pkg2 ...]
+       apt-get [options] source pkg1 [pkg2 ...]
+
+apt-get is a command line interface for retrieval of packages
+and information about them from authenticated sources and
+for installation, upgrade and removal of packages together
+with their dependencies.
+
+Most used commands:
+  update - Retrieve new lists of packages
+  upgrade - Perform an upgrade
+  install - Install new packages (pkg is libc6 not libc6.deb)
+  remove - Remove packages
+  purge - Remove packages and config files
+  autoremove - Remove automatically all unused packages
+  dist-upgrade - Distribution upgrade, see apt-get(8)
+  dselect-upgrade - Follow dselect selections
+  build-dep - Configure build-dependencies for source packages
+  clean - Erase downloaded archive files
+  autoclean - Erase old downloaded archive files
+  check - Verify that there are no broken dependencies
+  source - Download source archives
+  download - Download the binary package into the current directory
+  changelog - Download and display the changelog for the given package
+
+See apt-get(8) for more information about the available commands.
+Configuration options and syntax is detailed in apt.conf(5).
+Information about how to configure sources can be found in sources.list(5).
+Package and version choices can be expressed via apt_preferences(5).
+Security details are available in apt-secure(8).
+                                        This APT has Super Cow Powers.
+'''
+new_apt_get_operations = ['update', 'upgrade', 'install', 'remove', 'purge',
+                          'autoremove', 'dist-upgrade', 'dselect-upgrade',
+                          'build-dep', 'clean', 'autoclean', 'check',
+                          'source', 'download', 'changelog']
+
 
 @pytest.mark.parametrize('script, output', [
     ('apt', invalid_operation('saerch')),
@@ -104,7 +143,8 @@ def set_help(mocker):
 
 @pytest.mark.parametrize('app, help_text, operations', [
     ('apt', apt_help, apt_operations),
-    ('apt-get', apt_get_help, apt_get_operations)
+    ('apt-get', apt_get_help, apt_get_operations),
+    ('apt-get', new_apt_get_help, new_apt_get_operations)
 ])
 def test_get_operations(set_help, app, help_text, operations):
     set_help(help_text)
@@ -116,6 +156,8 @@ def test_get_operations(set_help, app, help_text, operations):
      apt_get_help, 'apt-get install vim'),
     ('apt saerch vim', invalid_operation('saerch'),
      apt_help, 'apt search vim'),
+    ('apt uninstall vim', invalid_operation('uninstall'),
+     apt_help, 'apt remove vim'),
 ])
 def test_get_new_command(set_help, output, script, help_text, result):
     set_help(help_text)

tests/rules/test_apt_list_upgradable.py

@@ -1,8 +1,10 @@
+# -*- coding: utf-8 -*-
+
 import pytest
 from thefuck.rules.apt_list_upgradable import get_new_command, match
 from thefuck.types import Command
 
-match_output = '''
+full_english_output = '''
 Hit:1 http://us.archive.ubuntu.com/ubuntu zesty InRelease
 Hit:2 http://us.archive.ubuntu.com/ubuntu zesty-updates InRelease
 Get:3 http://us.archive.ubuntu.com/ubuntu zesty-backports InRelease [89.2 kB]
@@ -17,6 +19,11 @@ Reading state information... Done
 8 packages can be upgraded. Run 'apt list --upgradable' to see them.
 '''
 
+match_output = [
+    full_english_output,
+    'Führen Sie »apt list --upgradable« aus, um sie anzuzeigen.'  # German
+]
+
 no_match_output = '''
 Hit:1 http://us.archive.ubuntu.com/ubuntu zesty InRelease
 Get:2 http://us.archive.ubuntu.com/ubuntu zesty-updates InRelease [89.2 kB]
@@ -48,8 +55,9 @@ All packages are up to date.
 '''
 
 
-def test_match():
-    assert match(Command('sudo apt update', match_output))
+@pytest.mark.parametrize('output', match_output)
+def test_match(output):
+    assert match(Command('sudo apt update', output))
 
 
 @pytest.mark.parametrize('command', [
@@ -67,9 +75,10 @@ def test_not_match(command):
     assert not match(command)
 
 
-def test_get_new_command():
-    new_command = get_new_command(Command('sudo apt update', match_output))
+@pytest.mark.parametrize('output', match_output)
+def test_get_new_command(output):
+    new_command = get_new_command(Command('sudo apt update', output))
     assert new_command == 'sudo apt list --upgradable'
 
-    new_command = get_new_command(Command('apt update', match_output))
+    new_command = get_new_command(Command('apt update', output))
     assert new_command == 'apt list --upgradable'

tests/rules/test_choco_install.py

@@ -0,0 +1,86 @@
+import pytest
+from thefuck.rules.choco_install import match, get_new_command
+from thefuck.types import Command
+
+
+package_not_found_error = (
+    'Chocolatey v0.10.15\n'
+    'Installing the following packages:\n'
+    'logstitcher\n'
+    'By installing you accept licenses for the packages.\n'
+    'logstitcher not installed. The package was not found with the source(s) listed.\n'
+    ' Source(s): \'https://chocolatey.org/api/v2/\'\n'
+    ' NOTE: When you specify explicit sources, it overrides default sources.\n'
+    'If the package version is a prerelease and you didn\'t specify `--pre`,\n'
+    ' the package may not be found.\n'
+    'Please see https://chocolatey.org/docs/troubleshooting for more\n'
+    ' assistance.\n'
+    '\n'
+    'Chocolatey installed 0/1 packages. 1 packages failed.\n'
+    ' See the log for details (C:\\ProgramData\\chocolatey\\logs\\chocolatey.log).\n'
+    '\n'
+    'Failures\n'
+    ' - logstitcher - logstitcher not installed. The package was not found with the source(s) listed.\n'
+    ' Source(s): \'https://chocolatey.org/api/v2/\'\n'
+    ' NOTE: When you specify explicit sources, it overrides default sources.\n'
+    'If the package version is a prerelease and you didn\'t specify `--pre`,\n'
+    ' the package may not be found.\n'
+    'Please see https://chocolatey.org/docs/troubleshooting for more\n'
+    ' assistance.\n'
+)
+
+
+@pytest.mark.parametrize('command', [
+    Command('choco install logstitcher', package_not_found_error),
+    Command('cinst logstitcher', package_not_found_error),
+    Command('choco install logstitcher -y', package_not_found_error),
+    Command('cinst logstitcher -y', package_not_found_error),
+    Command('choco install logstitcher -y -n=test', package_not_found_error),
+    Command('cinst logstitcher -y -n=test', package_not_found_error),
+    Command('choco install logstitcher -y -n=test /env', package_not_found_error),
+    Command('cinst logstitcher -y -n=test /env', package_not_found_error),
+    Command('choco install chocolatey -y', package_not_found_error),
+    Command('cinst chocolatey -y', package_not_found_error)])
+def test_match(command):
+    assert match(command)
+
+
+@pytest.mark.parametrize('command', [
+    Command('choco /?', ''),
+    Command('choco upgrade logstitcher', ''),
+    Command('cup logstitcher', ''),
+    Command('choco upgrade logstitcher -y', ''),
+    Command('cup logstitcher -y', ''),
+    Command('choco upgrade logstitcher -y -n=test', ''),
+    Command('cup logstitcher -y -n=test', ''),
+    Command('choco upgrade logstitcher -y -n=test /env', ''),
+    Command('cup logstitcher -y -n=test /env', ''),
+    Command('choco upgrade chocolatey -y', ''),
+    Command('cup chocolatey -y', ''),
+    Command('choco uninstall logstitcher', ''),
+    Command('cuninst logstitcher', ''),
+    Command('choco uninstall logstitcher -y', ''),
+    Command('cuninst logstitcher -y', ''),
+    Command('choco uninstall logstitcher -y -n=test', ''),
+    Command('cuninst logstitcher -y -n=test', ''),
+    Command('choco uninstall logstitcher -y -n=test /env', ''),
+    Command('cuninst logstitcher -y -n=test /env', ''),
+    Command('choco uninstall chocolatey -y', ''),
+    Command('cuninst chocolatey -y', '')])
+def not_test_match(command):
+    assert not match(command)
+
+
+@pytest.mark.parametrize('before, after', [
+    ('choco install logstitcher', 'choco install logstitcher.install'),
+    ('cinst logstitcher', 'cinst logstitcher.install'),
+    ('choco install logstitcher -y', 'choco install logstitcher.install -y'),
+    ('cinst logstitcher -y', 'cinst logstitcher.install -y'),
+    ('choco install logstitcher -y -n=test', 'choco install logstitcher.install -y -n=test'),
+    ('cinst logstitcher -y -n=test', 'cinst logstitcher.install -y -n=test'),
+    ('choco install logstitcher -y -n=test /env', 'choco install logstitcher.install -y -n=test /env'),
+    ('cinst logstitcher -y -n=test /env', 'cinst logstitcher.install -y -n=test /env'),
+    ('choco install chocolatey -y', 'choco install chocolatey.install -y'),
+    ('cinst chocolatey -y', 'cinst chocolatey.install -y'), ])
+def test_get_new_command(before, after):
+    assert (get_new_command(Command(before, '')) == after)

tests/rules/test_cp_create_destination.py

@@ -0,0 +1,30 @@
+import pytest
+from thefuck.rules.cp_create_destination import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.mark.parametrize(
+    "script, output",
+    [("cp", "cp: directory foo does not exist\n"), ("mv", "No such file or directory")],
+)
+def test_match(script, output):
+    assert match(Command(script, output))
+
+
+@pytest.mark.parametrize(
+    "script, output", [("cp", ""), ("mv", ""), ("ls", "No such file or directory")]
+)
+def test_not_match(script, output):
+    assert not match(Command(script, output))
+
+
+@pytest.mark.parametrize(
+    "script, output, new_command",
+    [
+        ("cp foo bar/", "cp: directory foo does not exist\n", "mkdir -p bar/ && cp foo bar/"),
+        ("mv foo bar/", "No such file or directory", "mkdir -p bar/ && mv foo bar/"),
+        ("cp foo bar/baz/", "cp: directory foo does not exist\n", "mkdir -p bar/baz/ && cp foo bar/baz/"),
+    ],
+)
+def test_get_new_command(script, output, new_command):
+    assert get_new_command(Command(script, output)) == new_command

tests/rules/test_docker_image_being_used_by_container.py

@@ -0,0 +1,27 @@
+from thefuck.rules.docker_image_being_used_by_container import match, get_new_command
+from thefuck.types import Command
+
+
+def test_match():
+    err_response = """Error response from daemon: conflict: unable to delete cd809b04b6ff (cannot be forced) - image is being used by running container e5e2591040d1"""
+    assert match(Command('docker image rm -f cd809b04b6ff', err_response))
+
+
+def test_not_match():
+    err_response = 'bash: docker: command not found'
+    assert not match(Command('docker image rm -f cd809b04b6ff', err_response))
+
+
+def test_not_docker_command():
+    err_response = """Error response from daemon: conflict: unable to delete cd809b04b6ff (cannot be forced) - image is being used by running container e5e2591040d1"""
+    assert not match(Command('git image rm -f cd809b04b6ff', err_response))
+
+
+def test_get_new_command():
+    err_response = """
+        Error response from daemon: conflict: unable to delete cd809b04b6ff (cannot be forced) - image
+        is being used by running container e5e2591040d1
+        """
+    result = get_new_command(Command('docker image rm -f cd809b04b6ff', err_response))
+    expected = 'docker container rm -f e5e2591040d1 && docker image rm -f cd809b04b6ff'
+    assert result == expected

tests/rules/test_docker_not_command.py

@@ -4,6 +4,46 @@ from thefuck.types import Command
 from thefuck.rules.docker_not_command import get_new_command, match
 
 
+_DOCKER_SWARM_OUTPUT = '''
+Usage:	docker swarm COMMAND
+
+Manage Swarm
+
+Commands:
+  ca          Display and rotate the root CA
+  init        Initialize a swarm
+  join        Join a swarm as a node and/or manager
+  join-token  Manage join tokens
+  leave       Leave the swarm
+  unlock      Unlock swarm
+  unlock-key  Manage the unlock key
+  update      Update the swarm
+
+Run 'docker swarm COMMAND --help' for more information on a command.
+'''
+_DOCKER_IMAGE_OUTPUT = '''
+Usage:	docker image COMMAND
+
+Manage images
+
+Commands:
+  build       Build an image from a Dockerfile
+  history     Show the history of an image
+  import      Import the contents from a tarball to create a filesystem image
+  inspect     Display detailed information on one or more images
+  load        Load an image from a tar archive or STDIN
+  ls          List images
+  prune       Remove unused images
+  pull        Pull an image or a repository from a registry
+  push        Push an image or a repository to a registry
+  rm          Remove one or more images
+  save        Save one or more images to a tar archive (streamed to STDOUT by default)
+  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
+
+Run 'docker image COMMAND --help' for more information on a command.
+'''
+
+
 @pytest.fixture
 def docker_help(mocker):
     help = b'''Usage: docker [OPTIONS] COMMAND [arg...]
@@ -104,6 +144,94 @@ Run 'docker COMMAND --help' for more information on a command.
     return mock
 
 
+@pytest.fixture
+def docker_help_new(mocker):
+    helptext_new = b'''
+Usage:	docker [OPTIONS] COMMAND
+
+A self-sufficient runtime for containers
+
+Options:
+      --config string      Location of client config files (default "/Users/ik1ne/.docker")
+  -c, --context string     Name of the context to use to connect to the daemon (overrides DOCKER_HOST env var
+                           and default context set with "docker context use")
+  -D, --debug              Enable debug mode
+  -H, --host list          Daemon socket(s) to connect to
+  -l, --log-level string   Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
+      --tls                Use TLS; implied by --tlsverify
+      --tlscacert string   Trust certs signed only by this CA (default "/Users/ik1ne/.docker/ca.pem")
+      --tlscert string     Path to TLS certificate file (default "/Users/ik1ne/.docker/cert.pem")
+      --tlskey string      Path to TLS key file (default "/Users/ik1ne/.docker/key.pem")
+      --tlsverify          Use TLS and verify the remote
+  -v, --version            Print version information and quit
+
+Management Commands:
+  builder     Manage builds
+  config      Manage Docker configs
+  container   Manage containers
+  context     Manage contexts
+  image       Manage images
+  network     Manage networks
+  node        Manage Swarm nodes
+  plugin      Manage plugins
+  secret      Manage Docker secrets
+  service     Manage services
+  stack       Manage Docker stacks
+  swarm       Manage Swarm
+  system      Manage Docker
+  trust       Manage trust on Docker images
+  volume      Manage volumes
+
+Commands:
+  attach      Attach local standard input, output, and error streams to a running container
+  build       Build an image from a Dockerfile
+  commit      Create a new image from a container's changes
+  cp          Copy files/folders between a container and the local filesystem
+  create      Create a new container
+  diff        Inspect changes to files or directories on a container's filesystem
+  events      Get real time events from the server
+  exec        Run a command in a running container
+  export      Export a container's filesystem as a tar archive
+  history     Show the history of an image
+  images      List images
+  import      Import the contents from a tarball to create a filesystem image
+  info        Display system-wide information
+  inspect     Return low-level information on Docker objects
+  kill        Kill one or more running containers
+  load        Load an image from a tar archive or STDIN
+  login       Log in to a Docker registry
+  logout      Log out from a Docker registry
+  logs        Fetch the logs of a container
+  pause       Pause all processes within one or more containers
+  port        List port mappings or a specific mapping for the container
+  ps          List containers
+  pull        Pull an image or a repository from a registry
+  push        Push an image or a repository to a registry
+  rename      Rename a container
+  restart     Restart one or more containers
+  rm          Remove one or more containers
+  rmi         Remove one or more images
+  run         Run a command in a new container
+  save        Save one or more images to a tar archive (streamed to STDOUT by default)
+  search      Search the Docker Hub for images
+  start       Start one or more stopped containers
+  stats       Display a live stream of container(s) resource usage statistics
+  stop        Stop one or more running containers
+  tag         Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
+  top         Display the running processes of a container
+  unpause     Unpause all processes within one or more containers
+  update      Update configuration of one or more containers
+  version     Show the Docker version information
+  wait        Block until one or more containers stop, then print their exit codes
+
+Run 'docker COMMAND --help' for more information on a command.
+'''
+    mock = mocker.patch('subprocess.Popen')
+    mock.return_value.stdout = BytesIO(b'')
+    mock.return_value.stderr = BytesIO(helptext_new)
+    return mock
+
+
 def output(cmd):
     return "docker: '{}' is not a docker command.\n" \
            "See 'docker --help'.".format(cmd)
@@ -113,6 +241,24 @@ def test_match():
     assert match(Command('docker pes', output('pes')))
 
 
+# tests docker (management command)
+@pytest.mark.usefixtures('no_memoize')
+@pytest.mark.parametrize('script, output', [
+    ('docker swarn', output('swarn')),
+    ('docker imge', output('imge'))])
+def test_match_management_cmd(script, output):
+    assert match(Command(script, output))
+
+
+# tests docker (management cmd) (management subcmd)
+@pytest.mark.usefixtures('no_memoize')
+@pytest.mark.parametrize('script, output', [
+    ('docker swarm int', _DOCKER_SWARM_OUTPUT),
+    ('docker image la', _DOCKER_IMAGE_OUTPUT)])
+def test_match_management_subcmd(script, output):
+    assert match(Command(script, output))
+
+
 @pytest.mark.parametrize('script, output', [
     ('docker ps', ''),
     ('cat pes', output('pes'))])
@@ -120,10 +266,28 @@ def test_not_match(script, output):
     assert not match(Command(script, output))
 
 
-@pytest.mark.usefixtures('docker_help')
+@pytest.mark.usefixtures('no_memoize', 'docker_help')
 @pytest.mark.parametrize('wrong, fixed', [
     ('pes', ['ps', 'push', 'pause']),
     ('tags', ['tag', 'stats', 'images'])])
 def test_get_new_command(wrong, fixed):
     command = Command('docker {}'.format(wrong), output(wrong))
     assert get_new_command(command) == ['docker {}'.format(x) for x in fixed]
+
+
+@pytest.mark.usefixtures('no_memoize', 'docker_help_new')
+@pytest.mark.parametrize('wrong, fixed', [
+    ('swarn', ['swarm', 'start', 'search']),
+    ('inage', ['image', 'images', 'rename'])])
+def test_get_new_management_command(wrong, fixed):
+    command = Command('docker {}'.format(wrong), output(wrong))
+    assert get_new_command(command) == ['docker {}'.format(x) for x in fixed]
+
+
+@pytest.mark.usefixtures('no_memoize', 'docker_help_new')
+@pytest.mark.parametrize('wrong, fixed, output', [
+    ('swarm int', ['swarm init', 'swarm join', 'swarm join-token'], _DOCKER_SWARM_OUTPUT),
+    ('image la', ['image load', 'image ls', 'image tag'], _DOCKER_IMAGE_OUTPUT)])
+def test_get_new_management_command_subcommand(wrong, fixed, output):
+    command = Command('docker {}'.format(wrong), output)
+    assert get_new_command(command) == ['docker {}'.format(x) for x in fixed]

tests/rules/test_git_branch_delete_checked_out.py

@@ -0,0 +1,29 @@
+import pytest
+from thefuck.rules.git_branch_delete_checked_out import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.fixture
+def output():
+    return "error: Cannot delete branch 'foo' checked out at '/bar/foo'"
+
+
+@pytest.mark.parametrize("script", ["git branch -d foo", "git branch -D foo"])
+def test_match(script, output):
+    assert match(Command(script, output))
+
+
+@pytest.mark.parametrize("script", ["git branch -d foo", "git branch -D foo"])
+def test_not_match(script):
+    assert not match(Command(script, "Deleted branch foo (was a1b2c3d)."))
+
+
+@pytest.mark.parametrize(
+    "script, new_command",
+    [
+        ("git branch -d foo", "git checkout master && git branch -D foo"),
+        ("git branch -D foo", "git checkout master && git branch -D foo"),
+    ],
+)
+def test_get_new_command(script, new_command, output):
+    assert get_new_command(Command(script, output)) == new_command

tests/rules/test_git_checkout.py

@@ -39,6 +39,11 @@ def test_not_match(command):
     (b'', []),
     (b'* master', ['master']),
     (b'  remotes/origin/master', ['master']),
+    (b'  remotes/origin/test/1', ['test/1']),
+    (b'  remotes/origin/test/1/2/3', ['test/1/2/3']),
+    (b'  test/1', ['test/1']),
+    (b'  test/1/2/3', ['test/1/2/3']),
+    (b'  remotes/origin/HEAD -> origin/master', []),
     (b'  just-another-branch', ['just-another-branch']),
     (b'* master\n  just-another-branch', ['master', 'just-another-branch']),
     (b'* master\n  remotes/origin/master\n  just-another-branch',
@@ -51,18 +56,18 @@ def test_get_branches(branches, branch_list, git_branch):
 @pytest.mark.parametrize('branches, command, new_command', [
     (b'',
      Command('git checkout unknown', did_not_match('unknown')),
-     'git checkout -b unknown'),
+     ['git checkout -b unknown']),
     (b'',
      Command('git commit unknown', did_not_match('unknown')),
-     'git branch unknown && git commit unknown'),
+     ['git branch unknown && git commit unknown']),
     (b'  test-random-branch-123',
      Command('git checkout tst-rdm-brnch-123',
              did_not_match('tst-rdm-brnch-123')),
-     'git checkout test-random-branch-123'),
+     ['git checkout test-random-branch-123', 'git checkout -b tst-rdm-brnch-123']),
     (b'  test-random-branch-123',
      Command('git commit tst-rdm-brnch-123',
              did_not_match('tst-rdm-brnch-123')),
-     'git commit test-random-branch-123')])
+     ['git commit test-random-branch-123'])])
 def test_get_new_command(branches, command, new_command, git_branch):
     git_branch(branches)
     assert get_new_command(command) == new_command

tests/rules/test_go_unknown_command.py

@@ -0,0 +1,21 @@
+import pytest
+from thefuck.rules.go_unknown_command import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.fixture
+def build_misspelled_output():
+    return '''go bulid: unknown command
+Run 'go help' for usage.'''
+
+
+def test_match(build_misspelled_output):
+    assert match(Command('go bulid', build_misspelled_output))
+
+
+def test_not_match():
+    assert not match(Command('go run', 'go run: no go files listed'))
+
+
+def test_get_new_command(build_misspelled_output):
+    assert get_new_command(Command('go bulid', build_misspelled_output)) == 'go build'

tests/rules/test_nixos_cmd_not_found.py

@@ -0,0 +1,25 @@
+import pytest
+from thefuck.rules.nixos_cmd_not_found import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command('vim', 'nix-env -iA nixos.vim')])
+def test_match(mocker, command):
+    mocker.patch('thefuck.rules.nixos_cmd_not_found', return_value=None)
+    assert match(command)
+
+
+@pytest.mark.parametrize('command', [
+    Command('vim', ''),
+    Command('', '')])
+def test_not_match(mocker, command):
+    mocker.patch('thefuck.rules.nixos_cmd_not_found', return_value=None)
+    assert not match(command)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('vim', 'nix-env -iA nixos.vim'), 'nix-env -iA nixos.vim && vim'),
+    (Command('pacman', 'nix-env -iA nixos.pacman'), 'nix-env -iA nixos.pacman && pacman')])
+def test_get_new_command(mocker, command, new_command):
+    assert get_new_command(command) == new_command

tests/rules/test_pip_unknown_command.py

@@ -4,13 +4,23 @@ from thefuck.types import Command
 
 
 @pytest.fixture
-def pip_unknown_cmd():
-    return '''ERROR: unknown command "instatl" - maybe you meant "install"'''
+def pip_unknown_cmd_without_recommend():
+    return '''ERROR: unknown command "i"'''
 
 
 @pytest.fixture
-def pip_unknown_cmd_without_recommend():
-    return '''ERROR: unknown command "i"'''
+def broken():
+    return 'instatl'
+
+
+@pytest.fixture
+def suggested():
+    return 'install'
+
+
+@pytest.fixture
+def pip_unknown_cmd(broken, suggested):
+    return 'ERROR: unknown command "{}" - maybe you meant "{}"'.format(broken, suggested)
 
 
 def test_match(pip_unknown_cmd, pip_unknown_cmd_without_recommend):
@@ -19,6 +29,9 @@ def test_match(pip_unknown_cmd, pip_unknown_cmd_without_recommend):
                              pip_unknown_cmd_without_recommend))
 
 
-def test_get_new_command(pip_unknown_cmd):
-    assert get_new_command(Command('pip instatl',
-                                   pip_unknown_cmd)) == 'pip install'
+@pytest.mark.parametrize('script, broken, suggested, new_cmd', [
+    ('pip un+install thefuck', 'un+install', 'uninstall', 'pip uninstall thefuck'),
+    ('pip instatl', 'instatl', 'install', 'pip install')])
+def test_get_new_command(script, new_cmd, pip_unknown_cmd):
+    assert get_new_command(Command(script,
+                                   pip_unknown_cmd)) == new_cmd

tests/rules/test_remove_shell_prompt_literal.py

@@ -0,0 +1,38 @@
+import pytest
+from thefuck.rules.remove_shell_prompt_literal import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.fixture
+def output():
+    return "$: command not found"
+
+
+@pytest.mark.parametrize("script", ["$ cd newdir", " $ cd newdir"])
+def test_match(script, output):
+    assert match(Command(script, output))
+
+
+@pytest.mark.parametrize(
+    "command",
+    [
+        Command("$", "$: command not found"),
+        Command(" $", "$: command not found"),
+        Command("$?", "127: command not found"),
+        Command(" $?", "127: command not found"),
+        Command("", ""),
+    ],
+)
+def test_not_match(command):
+    assert not match(command)
+
+
+@pytest.mark.parametrize(
+    "script, new_command",
+    [
+        ("$ cd newdir", "cd newdir"),
+        ("$ python3 -m virtualenv env", "python3 -m virtualenv env"),
+    ],
+)
+def test_get_new_command(script, new_command, output):
+    assert get_new_command(Command(script, output)) == new_command

tests/rules/test_switch_lang.py

@@ -1,6 +1,7 @@
 # -*- encoding: utf-8 -*-
 
 import pytest
+
 from thefuck.rules import switch_lang
 from thefuck.types import Command
 
@@ -9,7 +10,8 @@ from thefuck.types import Command
     Command(u'фзе-пуе', 'command not found: фзе-пуе'),
     Command(u'λσ', 'command not found: λσ'),
     Command(u'שפא-עקא', 'command not found: שפא-עקא'),
-    Command(u'ךד', 'command not found: ךד')])
+    Command(u'ךד', 'command not found: ךד'),
+    Command(u'녀애 ㅣㄴ', 'command not found: 녀애 ㅣㄴ')])
 def test_match(command):
     assert switch_lang.match(command)
 
@@ -19,7 +21,8 @@ def test_match(command):
     Command(u'ls', 'command not found: ls'),
     Command(u'агсл', 'command not found: агсл'),
     Command(u'фзе-пуе', 'some info'),
-    Command(u'שפא-עקא', 'some info')])
+    Command(u'שפא-עקא', 'some info'),
+    Command(u'녀애 ㅣㄴ', 'some info')])
 def test_not_match(command):
     assert not switch_lang.match(command)
 
@@ -28,6 +31,9 @@ def test_not_match(command):
     (Command(u'фзе-пуе штыефдд мшь', ''), 'apt-get install vim'),
     (Command(u'λσ -λα', ''), 'ls -la'),
     (Command(u'שפא-עקא ןמדאשךך הןצ', ''), 'apt-get install vim'),
-    (Command(u'ךד -ךש', ''), 'ls -la')])
+    (Command(u'ךד -ךש', ''), 'ls -la'),
+    (Command(u'멧-ㅎㄷㅅ ㅑㅜㄴㅅ미ㅣ 퍄ㅡ', ''), 'apt-get install vim'),
+    (Command(u'ㅣㄴ -ㅣㅁ', ''), 'ls -la'),
+    (Command(u'ㅔㅁㅅ촤', ''), 'patchk'), ])
 def test_get_new_command(command, new_command):
     assert switch_lang.get_new_command(command) == new_command

tests/rules/test_terraform_init.py

@@ -0,0 +1,33 @@
+import pytest
+from thefuck.rules.terraform_init import match, get_new_command
+from thefuck.types import Command
+
+
+@pytest.mark.parametrize('script, output', [
+    ('terraform plan', 'Error: Initialization required. '
+                       'Please see the error message above.'),
+    ('terraform plan', 'This module is not yet installed. Run "terraform init" '
+                       'to install all modules required by this configuration.'),
+    ('terraform apply', 'Error: Initialization required. '
+                        'Please see the error message above.'),
+    ('terraform apply', 'This module is not yet installed. Run "terraform init" '
+                        'to install all modules required by this configuration.')])
+def test_match(script, output):
+    assert match(Command(script, output))
+
+
+@pytest.mark.parametrize('script, output', [
+    ('terraform --version', 'Terraform v0.12.2'),
+    ('terraform plan', 'No changes. Infrastructure is up-to-date.'),
+    ('terraform apply', 'Apply complete! Resources: 0 added, 0 changed, 0 destroyed.'),
+])
+def test_not_match(script, output):
+    assert not match(Command(script, output=output))
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('terraform plan', ''), 'terraform init && terraform plan'),
+    (Command('terraform apply', ''), 'terraform init && terraform apply'),
+])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command) == new_command

tests/rules/test_yum_invalid_operation.py

@@ -0,0 +1,173 @@
+from io import BytesIO
+
+import pytest
+
+from thefuck.rules.yum_invalid_operation import match, get_new_command, _get_operations
+from thefuck.types import Command
+
+yum_help_text = '''Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
+Usage: yum [options] COMMAND
+
+List of Commands:
+
+check          Check for problems in the rpmdb
+check-update   Check for available package updates
+clean          Remove cached data
+deplist        List a package's dependencies
+distribution-synchronization Synchronize installed packages to the latest available versions
+downgrade      downgrade a package
+erase          Remove a package or packages from your system
+fs             Acts on the filesystem data of the host, mainly for removing docs/lanuages for minimal hosts.
+fssnapshot     Creates filesystem snapshots, or lists/deletes current snapshots.
+groups         Display, or use, the groups information
+help           Display a helpful usage message
+history        Display, or use, the transaction history
+info           Display details about a package or group of packages
+install        Install a package or packages on your system
+langavailable  Check available languages
+langinfo       List languages information
+langinstall    Install appropriate language packs for a language
+langlist       List installed languages
+langremove     Remove installed language packs for a language
+list           List a package or groups of packages
+load-transaction load a saved transaction from filename
+makecache      Generate the metadata cache
+provides       Find what package provides the given value
+reinstall      reinstall a package
+repo-pkgs      Treat a repo. as a group of packages, so we can install/remove all of them
+repolist       Display the configured software repositories
+search         Search package details for the given string
+shell          Run an interactive yum shell
+swap           Simple way to swap packages, instead of using shell
+update         Update a package or packages on your system
+update-minimal Works like upgrade, but goes to the 'newest' package match which fixes a problem that affects your system
+updateinfo     Acts on repository update information
+upgrade        Update packages taking obsoletes into account
+version        Display a version for the machine and/or available repos.
+
+
+Options:
+  -h, --help            show this help message and exit
+  -t, --tolerant        be tolerant of errors
+  -C, --cacheonly       run entirely from system cache, don't update cache
+  -c [config file], --config=[config file]
+                        config file location
+  -R [minutes], --randomwait=[minutes]
+                        maximum command wait time
+  -d [debug level], --debuglevel=[debug level]
+                        debugging output level
+  --showduplicates      show duplicates, in repos, in list/search commands
+  -e [error level], --errorlevel=[error level]
+                        error output level
+  --rpmverbosity=[debug level name]
+                        debugging output level for rpm
+  -q, --quiet           quiet operation
+  -v, --verbose         verbose operation
+  -y, --assumeyes       answer yes for all questions
+  --assumeno            answer no for all questions
+  --version             show Yum version and exit
+  --installroot=[path]  set install root
+  --enablerepo=[repo]   enable one or more repositories (wildcards allowed)
+  --disablerepo=[repo]  disable one or more repositories (wildcards allowed)
+  -x [package], --exclude=[package]
+                        exclude package(s) by name or glob
+  --disableexcludes=[repo]
+                        disable exclude from main, for a repo or for
+                        everything
+  --disableincludes=[repo]
+                        disable includepkgs for a repo or for everything
+  --obsoletes           enable obsoletes processing during updates
+  --noplugins           disable Yum plugins
+  --nogpgcheck          disable gpg signature checking
+  --disableplugin=[plugin]
+                        disable plugins by name
+  --enableplugin=[plugin]
+                        enable plugins by name
+  --skip-broken         skip packages with depsolving problems
+  --color=COLOR         control whether color is used
+  --releasever=RELEASEVER
+                        set value of $releasever in yum config and repo files
+  --downloadonly        don't update, just download
+  --downloaddir=DLDIR   specifies an alternate directory to store packages
+  --setopt=SETOPTS      set arbitrary config and repo options
+  --bugfix              Include bugfix relevant packages, in updates
+  --security            Include security relevant packages, in updates
+  --advisory=ADVS, --advisories=ADVS
+                        Include packages needed to fix the given advisory, in
+                        updates
+  --bzs=BZS             Include packages needed to fix the given BZ, in
+                        updates
+  --cves=CVES           Include packages needed to fix the given CVE, in
+                        updates
+  --sec-severity=SEVS, --secseverity=SEVS
+                        Include security relevant packages matching the
+                        severity, in updates
+
+  Plugin Options:
+    --samearch-priorities
+                        Priority-exclude packages based on name + arch
+'''
+yum_unsuccessful_search_text = '''Warning: No matches found for: {}
+No matches found
+'''
+yum_successful_vim_search_text = '''================================================== N/S matched: vim ===================================================
+protobuf-vim.x86_64 : Vim syntax highlighting for Google Protocol Buffers descriptions
+vim-X11.x86_64 : The VIM version of the vi editor for the X Window System - GVim
+vim-common.x86_64 : The common files needed by any version of the VIM editor
+vim-enhanced.x86_64 : A version of the VIM editor which includes recent enhancements
+vim-filesystem.x86_64 : VIM filesystem layout
+vim-filesystem.noarch : VIM filesystem layout
+vim-minimal.x86_64 : A minimal version of the VIM editor
+
+  Name and summary matches only, use "search all" for everything.
+'''
+
+yum_invalid_op_text = '''Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
+No such command: {}. Please use /usr/bin/yum --help
+'''
+
+yum_operations = [
+    'check', 'check-update', 'clean', 'deplist', 'distribution-synchronization', 'downgrade', 'erase', 'fs',
+    'fssnapshot', 'groups', 'help', 'history', 'info', 'install', 'langavailable', 'langinfo', 'langinstall',
+    'langlist', 'langremove', 'list', 'load-transaction', 'makecache', 'provides', 'reinstall', 'repo-pkgs', 'repolist',
+    'search', 'shell', 'swap', 'update', 'update-minimal', 'updateinfo', 'upgrade', 'version', ]
+
+
+@pytest.mark.parametrize('command', [
+    'saerch', 'uninstall',
+])
+def test_match(command):
+    assert match(Command('yum {}'.format(command), yum_invalid_op_text.format(command)))
+
+
+@pytest.mark.parametrize('command, output', [
+    ('vim', ''),
+    ('yum', yum_help_text,),
+    ('yum help', yum_help_text,),
+    ('yum search asdf', yum_unsuccessful_search_text.format('asdf'),),
+    ('yum search vim', yum_successful_vim_search_text)
+])
+def test_not_match(command, output):
+    assert not match(Command(command, output))
+
+
+@pytest.fixture
+def yum_help(mocker):
+    mock = mocker.patch('subprocess.Popen')
+    mock.return_value.stdout = BytesIO(bytes(yum_help_text.encode('utf-8')))
+    return mock
+
+
+@pytest.mark.usefixtures('no_memoize', 'yum_help')
+def test_get_operations():
+    assert _get_operations() == yum_operations
+
+
+@pytest.mark.usefixtures('no_memoize', 'yum_help')
+@pytest.mark.parametrize('script, output, result', [
+    ('yum uninstall', yum_invalid_op_text.format('uninstall'), 'yum remove',),
+    ('yum saerch asdf', yum_invalid_op_text.format('saerch'), 'yum search asdf',),
+    ('yum hlep', yum_invalid_op_text.format('hlep'), 'yum help',),
+])
+def test_get_new_command(script, output, result):
+    assert get_new_command(Command(script, output))[0] == result

tests/test_utils.py

@@ -225,9 +225,12 @@ class TestGetValidHistoryWithoutCurrent(object):
 
     @pytest.fixture(autouse=True)
     def history(self, mocker):
-        return mocker.patch('thefuck.shells.shell.get_history',
-                            return_value=['le cat', 'fuck', 'ls cat',
-                                          'diff x', 'nocommand x', u'café ô'])
+        mock = mocker.patch('thefuck.shells.shell.get_history')
+        #  Passing as an argument causes `UnicodeDecodeError`
+        #  with newer py.test and python 2.7
+        mock.return_value = ['le cat', 'fuck', 'ls cat',
+                             'diff x', 'nocommand x', u'café ô']
+        return mock
 
     @pytest.fixture(autouse=True)
     def alias(self, mocker):

thefuck/argument_parser.py

@@ -55,7 +55,7 @@ class Parser(object):
         """It's too dangerous to use `-y` and `-r` together."""
         group = self._parser.add_mutually_exclusive_group()
         group.add_argument(
-            '-y', '--yes', '--yeah',
+            '-y', '--yes', '--yeah', '--hard',
             action='store_true',
             help='execute fixed command without confirmation')
         group.add_argument(

thefuck/entrypoints/main.py

@@ -22,10 +22,13 @@ def main():
     elif known_args.version:
         logs.version(get_installation_info().version,
                      sys.version.split()[0], shell.info())
-    elif known_args.command or 'TF_HISTORY' in os.environ:
-        fix_command(known_args)
+    # It's important to check if an alias is being requested before checking if
+    # `TF_HISTORY` is in `os.environ`, otherwise it might mess with subshells.
+    # Check https://github.com/nvbn/thefuck/issues/921 for reference
     elif known_args.alias:
         print_alias(known_args)
+    elif known_args.command or 'TF_HISTORY' in os.environ:
+        fix_command(known_args)
     elif known_args.shell_logger:
         try:
             from .shell_logger import shell_logger  # noqa: E402

thefuck/logs.py

@@ -106,7 +106,7 @@ def how_to_configure_alias(configuration_details):
 
         if configuration_details.can_configure_automatically:
             print(
-                u"Or run {bold}fuck{reset} second time for configuring"
+                u"Or run {bold}fuck{reset} a second time to configure"
                 u" it automatically.".format(
                     bold=color(colorama.Style.BRIGHT),
                     reset=color(colorama.Style.RESET_ALL)))

thefuck/output_readers/rerun.py

@@ -53,8 +53,9 @@ def get_output(script, expanded):
     env = dict(os.environ)
     env.update(settings.env)
 
-    is_slow = shlex.split(expanded) in settings.slow_commands
-    with logs.debug_time(u'Call: {}; with env: {}; is slow: '.format(
+    split_expand = shlex.split(expanded)
+    is_slow = split_expand[0] in settings.slow_commands if split_expand else False
+    with logs.debug_time(u'Call: {}; with env: {}; is slow: {}'.format(
             script, env, is_slow)):
         result = Popen(expanded, shell=True, stdin=PIPE,
                        stdout=PIPE, stderr=STDOUT, env=env)

thefuck/rules/apt_invalid_operation.py

@@ -34,7 +34,8 @@ def _parse_apt_get_and_cache_operations(help_text_lines):
                 return
 
             yield line.split()[0]
-        elif line.startswith('Commands:'):
+        elif line.startswith('Commands:') \
+                or line.startswith('Most used commands:'):
             is_commands_list = True
 
 
@@ -53,5 +54,10 @@ def _get_operations(app):
 @sudo_support
 def get_new_command(command):
     invalid_operation = command.output.split()[-1]
-    operations = _get_operations(command.script_parts[0])
-    return replace_command(command, invalid_operation, operations)
+
+    if invalid_operation == 'uninstall':
+        return [command.script.replace('uninstall', 'remove')]
+
+    else:
+        operations = _get_operations(command.script_parts[0])
+        return replace_command(command, invalid_operation, operations)

thefuck/rules/apt_list_upgradable.py

@@ -8,7 +8,7 @@ enabled_by_default = apt_available
 @sudo_support
 @for_app('apt')
 def match(command):
-    return "Run 'apt list --upgradable' to see them." in command.output
+    return 'apt list --upgradable' in command.output
 
 
 @sudo_support

thefuck/rules/choco_install.py

@@ -0,0 +1,25 @@
+from thefuck.utils import for_app, which
+
+
+@for_app("choco", "cinst")
+def match(command):
+    return ((command.script.startswith('choco install') or 'cinst' in command.script_parts)
+            and 'Installing the following packages' in command.output)
+
+
+def get_new_command(command):
+    # Find the argument that is the package name
+    for script_part in command.script_parts:
+        if (
+            script_part not in ["choco", "cinst", "install"]
+            # Need exact match (bc chocolatey is a package)
+            and not script_part.startswith('-')
+            # Leading hyphens are parameters; some packages contain them though
+            and '=' not in script_part and '/' not in script_part
+            # These are certainly parameters
+        ):
+            return command.script.replace(script_part, script_part + ".install")
+    return []
+
+
+enabled_by_default = bool(which("choco")) or bool(which("cinst"))

thefuck/rules/cp_create_destination.py

@@ -0,0 +1,15 @@
+from thefuck.shells import shell
+from thefuck.utils import for_app
+
+
+@for_app("cp", "mv")
+def match(command):
+    return (
+        "No such file or directory" in command.output
+        or command.output.startswith("cp: directory")
+        and command.output.rstrip().endswith("does not exist")
+    )
+
+
+def get_new_command(command):
+    return shell.and_(u"mkdir -p {}".format(command.script_parts[-1]), command.script)

thefuck/rules/docker_image_being_used_by_container.py

@@ -0,0 +1,20 @@
+from thefuck.utils import for_app
+from thefuck.shells import shell
+
+
+@for_app('docker')
+def match(command):
+    '''
+    Matches a command's output with docker's output
+    warning you that you need to remove a container before removing an image.
+    '''
+    return 'image is being used by running container' in command.output
+
+
+def get_new_command(command):
+    '''
+    Prepends docker container rm -f {container ID} to
+    the previous docker image rm {image ID} command
+    '''
+    container_id = command.output.strip().split(' ')
+    return shell.and_('docker container rm -f {}', '{}').format(container_id[-1], command.script)

thefuck/rules/docker_not_command.py

@@ -8,16 +8,30 @@ from thefuck.specific.sudo import sudo_support
 @sudo_support
 @for_app('docker')
 def match(command):
-    return 'is not a docker command' in command.output
+    return 'is not a docker command' in command.output or 'Usage:	docker' in command.output
+
+
+def _parse_commands(lines, starts_with):
+    lines = dropwhile(lambda line: not line.startswith(starts_with), lines)
+    lines = islice(lines, 1, None)
+    lines = list(takewhile(lambda line: line.strip(), lines))
+    return [line.strip().split(' ')[0] for line in lines]
 
 
 def get_docker_commands():
-    proc = subprocess.Popen('docker', stdout=subprocess.PIPE)
-    lines = [line.decode('utf-8') for line in proc.stdout.readlines()]
-    lines = dropwhile(lambda line: not line.startswith('Commands:'), lines)
-    lines = islice(lines, 1, None)
-    lines = list(takewhile(lambda line: line != '\n', lines))
-    return [line.strip().split(' ')[0] for line in lines]
+    proc = subprocess.Popen('docker', stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    # Old version docker returns its output to stdout, while newer version returns to stderr.
+    lines = proc.stdout.readlines() or proc.stderr.readlines()
+    lines = [line.decode('utf-8') for line in lines]
+
+    # Only newer versions of docker have management commands in the help text.
+    if 'Management Commands:\n' in lines:
+        management_commands = _parse_commands(lines, 'Management Commands:')
+    else:
+        management_commands = []
+    regular_commands = _parse_commands(lines, 'Commands:')
+    return management_commands + regular_commands
 
 
 if which('docker'):
@@ -26,6 +40,10 @@ if which('docker'):
 
 @sudo_support
 def get_new_command(command):
+    if 'Usage:' in command.output and len(command.script_parts) > 1:
+        management_subcommands = _parse_commands(command.output.split('\n'), 'Commands:')
+        return replace_command(command, command.script_parts[2], management_subcommands)
+
     wrong_command = re.findall(
         r"docker: '(\w+)' is not a docker command.", command.output)[0]
     return replace_command(command, wrong_command, get_docker_commands())

thefuck/rules/git_branch_delete_checked_out.py

@@ -0,0 +1,19 @@
+from thefuck.shells import shell
+from thefuck.specific.git import git_support
+from thefuck.utils import replace_argument
+
+
+@git_support
+def match(command):
+    return (
+        ("branch -d" in command.script or "branch -D" in command.script)
+        and "error: Cannot delete branch '" in command.output
+        and "' checked out at '" in command.output
+    )
+
+
+@git_support
+def get_new_command(command):
+    return shell.and_("git checkout master", "{}").format(
+        replace_argument(command.script, "-d", "-D")
+    )

thefuck/rules/git_checkout.py

@@ -8,7 +8,7 @@ from thefuck.shells import shell
 
 @git_support
 def match(command):
-    return ('did not match any file(s) known to git.' in command.output
+    return ('did not match any file(s) known to git' in command.output
             and "Did you forget to 'git add'?" not in command.output)
 
 
@@ -18,10 +18,12 @@ def get_branches():
         stdout=subprocess.PIPE)
     for line in proc.stdout.readlines():
         line = line.decode('utf-8')
+        if '->' in line:    # Remote HEAD like b'  remotes/origin/HEAD -> origin/master'
+            continue
         if line.startswith('*'):
             line = line.split(' ')[1]
-        if '/' in line:
-            line = line.split('/')[-1]
+        if line.strip().startswith('remotes/'):
+            line = '/'.join(line.split('/')[2:])
         yield line.strip()
 
 
@@ -29,13 +31,19 @@ def get_branches():
 def get_new_command(command):
     missing_file = re.findall(
         r"error: pathspec '([^']*)' "
-        r"did not match any file\(s\) known to git.", command.output)[0]
+        r"did not match any file\(s\) known to git", command.output)[0]
     closest_branch = utils.get_closest(missing_file, get_branches(),
                                        fallback_to_first=False)
+
+    new_commands = []
+
     if closest_branch:
-        return replace_argument(command.script, missing_file, closest_branch)
-    elif command.script_parts[1] == 'checkout':
-        return replace_argument(command.script, 'checkout', 'checkout -b')
-    else:
-        return shell.and_('git branch {}', '{}').format(
-            missing_file, command.script)
+        new_commands.append(replace_argument(command.script, missing_file, closest_branch))
+    if command.script_parts[1] == 'checkout':
+        new_commands.append(replace_argument(command.script, 'checkout', 'checkout -b'))
+
+    if not new_commands:
+        new_commands.append(shell.and_('git branch {}', '{}').format(
+            missing_file, command.script))
+
+    return new_commands

thefuck/rules/go_unknown_command.py

@@ -0,0 +1,28 @@
+from itertools import dropwhile, islice, takewhile
+import subprocess
+
+from thefuck.utils import get_closest, replace_argument, for_app, which, cache
+
+
+def get_golang_commands():
+    proc = subprocess.Popen('go', stderr=subprocess.PIPE)
+    lines = [line.decode('utf-8').strip() for line in proc.stderr.readlines()]
+    lines = dropwhile(lambda line: line != 'The commands are:', lines)
+    lines = islice(lines, 2, None)
+    lines = takewhile(lambda line: line, lines)
+    return [line.split(' ')[0] for line in lines]
+
+
+if which('go'):
+    get_docker_commands = cache(which('go'))(get_golang_commands)
+
+
+@for_app('go')
+def match(command):
+    return 'unknown command' in command.output
+
+
+def get_new_command(command):
+    closest_subcommand = get_closest(command.script_parts[1], get_golang_commands())
+    return replace_argument(command.script, command.script_parts[1],
+                            closest_subcommand)

thefuck/rules/nixos_cmd_not_found.py

@@ -0,0 +1,15 @@
+import re
+from thefuck.specific.nix import nix_available
+from thefuck.shells import shell
+
+regex = re.compile(r'nix-env -iA ([^\s]*)')
+enabled_by_default = nix_available
+
+
+def match(command):
+    return regex.findall(command.output)
+
+
+def get_new_command(command):
+    name = regex.findall(command.output)[0]
+    return shell.and_('nix-env -iA {}'.format(name), command.script)

thefuck/rules/pip_unknown_command.py

@@ -12,8 +12,8 @@ def match(command):
 
 
 def get_new_command(command):
-    broken_cmd = re.findall(r'ERROR: unknown command \"([a-z]+)\"',
+    broken_cmd = re.findall(r'ERROR: unknown command "([^"]+)"',
                             command.output)[0]
-    new_cmd = re.findall(r'maybe you meant \"([a-z]+)\"', command.output)[0]
+    new_cmd = re.findall(r'maybe you meant "([^"]+)"', command.output)[0]
 
     return replace_argument(command.script, broken_cmd, new_cmd)

thefuck/rules/remove_shell_prompt_literal.py

@@ -0,0 +1,22 @@
+"""Fixes error for commands containing the shell prompt symbol '$'.
+
+This usually happens when commands are copied from documentations
+including them in their code blocks.
+
+Example:
+> $ git clone https://github.com/nvbn/thefuck.git
+bash: $: command not found...
+"""
+
+import re
+
+
+def match(command):
+    return (
+        "$: command not found" in command.output
+        and re.search(r"^[\s]*\$ [\S]+", command.script) is not None
+    )
+
+
+def get_new_command(command):
+    return command.script.replace("$", "", 1).strip()

thefuck/rules/sudo.py

@@ -21,7 +21,7 @@ patterns = ['permission denied',
             'edspermissionerror',
             'you don\'t have write permissions',
             'use `sudo`',
-            'SudoRequiredError',
+            'sudorequirederror',
             'error: insufficient privileges']
 
 

thefuck/rules/switch_lang.py

@@ -5,13 +5,14 @@ target_layout = '''qwertyuiop[]asdfghjkl;'zxcvbnm,./QWERTYUIOP{}ASDFGHJKL:"ZXCVB
 # any new keyboard layout must be appended
 
 greek = u''';ςερτυθιοπ[]ασδφγηξκλ΄ζχψωβνμ,./:΅ΕΡΤΥΘΙΟΠ{}ΑΣΔΦΓΗΞΚΛ¨"ΖΧΨΩΒΝΜ<>?'''
+korean = u'''ㅂㅈㄷㄱㅅㅛㅕㅑㅐㅔ[]ㅁㄴㅇㄹㅎㅗㅓㅏㅣ;'ㅋㅌㅊㅍㅠㅜㅡ,./ㅃㅉㄸㄲㅆㅛㅕㅑㅒㅖ{}ㅁㄴㅇㄹㅎㅗㅓㅏㅣ:"ㅋㅌㅊㅍㅠㅜㅡ<>?'''
 
 source_layouts = [u'''йцукенгшщзхъфывапролджэячсмитьбю.ЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮ,''',
                   u'''йцукенгшщзхїфівапролджєячсмитьбю.ЙЦУКЕНГШЩЗХЇФІВАПРОЛДЖЄЯЧСМИТЬБЮ,''',
                   u'''ضصثقفغعهخحجچشسیبلاتنمکگظطزرذدپو./ًٌٍَُِّْ][}{ؤئيإأآة»«:؛كٓژٰ‌ٔء><؟''',
                   u'''/'קראטוןםפ][שדגכעיחלךף,זסבהנמצתץ.QWERTYUIOP{}ASDFGHJKL:"ZXCVBNM<>?''',
-                  greek]
-
+                  greek,
+                  korean]
 
 source_to_target = {
     greek: {u';': "q", u'ς': "w", u'ε': "e", u'ρ': "r", u'τ': "t", u'υ': "y",
@@ -30,6 +31,19 @@ source_to_target = {
             u'Ώ': "V"},
 }
 
+'''Lists used for decomposing korean letters.'''
+HEAD_LIST = [u'ㄱ', u'ㄲ', u'ㄴ', u'ㄷ', u'ㄸ', u'ㄹ', u'ㅁ', u'ㅂ', u'ㅃ', u'ㅅ', u'ㅆ',
+             u'ㅇ', u'ㅈ', u'ㅉ', u'ㅊ', u'ㅋ', u'ㅌ', u'ㅍ', u'ㅎ']
+BODY_LIST = [u'ㅏ', u'ㅐ', u'ㅑ', u'ㅒ', u'ㅓ', u'ㅔ', u'ㅕ', u'ㅖ', u'ㅗ', u'ㅘ', u'ㅙ',
+             u'ㅚ', u'ㅛ', u'ㅜ', u'ㅝ', u'ㅞ', u'ㅟ', u'ㅠ', u'ㅡ', u'ㅢ', u'ㅣ']
+TAIL_LIST = [u' ', u'ㄱ', u'ㄲ', u'ㄳ', u'ㄴ', u'ㄵ', u'ㄶ', u'ㄷ', u'ㄹ', u'ㄺ', u'ㄻ',
+             u'ㄼ', u'ㄽ', u'ㄾ', u'ㄿ', u'ㅀ', u'ㅁ', u'ㅂ', u'ㅄ', u'ㅅ', u'ㅆ', u'ㅇ', u'ㅈ',
+             u'ㅊ', u'ㅋ', u'ㅌ', u'ㅍ', u'ㅎ']
+DOUBLE_LIST = [u'ㅘ', u'ㅙ', u'ㅚ', u'ㅝ', u'ㅞ', u'ㅟ', u'ㅢ', u'ㄳ', u'ㄵ', u'ㄶ', u'ㄺ',
+               u'ㄻ', u'ㄼ', u'ㄽ', u'ㄾ', u'ㅀ', u'ㅄ']
+DOUBLE_MOD_LIST = [u'ㅗㅏ', u'ㅗㅐ', u'ㅗㅣ', u'ㅜㅓ', u'ㅜㅔ', u'ㅜㅣ', u'ㅡㅣ', u'ㄱㅅ',
+                   u'ㄴㅈ', u'ㄴㅎ', u'ㄹㄱ', u'ㄹㅁ', u'ㄹㅂ', u'ㄹㅅ', u'ㄹㅌ', u'ㄹㅎ', u'ㅂㅅ']
+
 
 @memoize
 def _get_matched_layout(command):
@@ -50,8 +64,7 @@ def _get_matched_layout(command):
 def _switch(ch, layout):
     if ch in layout:
         return target_layout[layout.index(ch)]
-    else:
-        return ch
+    return ch
 
 
 def _switch_command(command, layout):
@@ -63,9 +76,33 @@ def _switch_command(command, layout):
     return ''.join(_switch(ch, layout) for ch in command.script)
 
 
+def _decompose_korean(command):
+    def _change_double(ch):
+        if ch in DOUBLE_LIST:
+            return DOUBLE_MOD_LIST[DOUBLE_LIST.index(ch)]
+        return ch
+
+    hg_str = u''
+    for ch in command.script:
+        if u'가' <= ch <= u'힣':
+            ord_ch = ord(ch) - ord(u'가')
+            hd = ord_ch // 588
+            bd = (ord_ch - 588 * hd) // 28
+            tl = ord_ch - 588 * hd - 28 * bd
+            for ch in [HEAD_LIST[hd], BODY_LIST[bd], TAIL_LIST[tl]]:
+                if ch != ' ':
+                    hg_str += _change_double(ch)
+        else:
+            hg_str += _change_double(ch)
+    return hg_str
+
+
 def match(command):
     if 'not found' not in command.output:
         return False
+    if any(u'ㄱ' <= ch <= u'ㅎ' or u'ㅏ' <= ch <= u'ㅣ' or u'가' <= ch <= u'힣'
+            for ch in command.script):
+        return True
 
     matched_layout = _get_matched_layout(command)
     return (matched_layout and
@@ -73,5 +110,8 @@ def match(command):
 
 
 def get_new_command(command):
+    if any(u'ㄱ' <= ch <= u'ㅎ' or u'ㅏ' <= ch <= u'ㅣ' or u'가' <= ch <= u'힣'
+            for ch in command.script):
+        command.script = _decompose_korean(command)
     matched_layout = _get_matched_layout(command)
     return _switch_command(command, matched_layout)

thefuck/rules/terraform_init.py

@@ -0,0 +1,13 @@
+from thefuck.shells import shell
+from thefuck.utils import for_app
+
+
+@for_app('terraform')
+def match(command):
+    return ('this module is not yet installed' in command.output.lower() or
+            'initialization required' in command.output.lower()
+            )
+
+
+def get_new_command(command):
+    return shell.and_('terraform init', command.script)

thefuck/rules/touch.py

@@ -9,6 +9,6 @@ def match(command):
 
 
 def get_new_command(command):
-    path = path = re.findall(
+    path = re.findall(
         r"touch: (?:cannot touch ')?(.+)/.+'?:", command.output)[0]
     return shell.and_(u'mkdir -p {}'.format(path), command.script)

thefuck/rules/yum_invalid_operation.py

@@ -0,0 +1,39 @@
+import subprocess
+from itertools import dropwhile, islice, takewhile
+
+from thefuck.specific.sudo import sudo_support
+from thefuck.specific.yum import yum_available
+from thefuck.utils import for_app, replace_command, which, cache
+
+enabled_by_default = yum_available
+
+
+@sudo_support
+@for_app('yum')
+def match(command):
+    return 'No such command: ' in command.output
+
+
+def _get_operations():
+    proc = subprocess.Popen('yum', stdout=subprocess.PIPE)
+
+    lines = proc.stdout.readlines()
+    lines = [line.decode('utf-8') for line in lines]
+    lines = dropwhile(lambda line: not line.startswith("List of Commands:"), lines)
+    lines = islice(lines, 2, None)
+    lines = list(takewhile(lambda line: line.strip(), lines))
+    return [line.strip().split(' ')[0] for line in lines]
+
+
+if which('yum'):
+    _get_operations = cache(which('yum'))(_get_operations)
+
+
+@sudo_support
+def get_new_command(command):
+    invalid_operation = command.script_parts[1]
+
+    if invalid_operation == 'uninstall':
+        return [command.script.replace('uninstall', 'remove')]
+
+    return replace_command(command, invalid_operation, _get_operations())

thefuck/shells/powershell.py

@@ -24,9 +24,9 @@ class Powershell(Generic):
 
     def how_to_configure(self):
         return ShellConfiguration(
-            content=u'iex "thefuck --alias"',
+            content=u'iex "$(thefuck --alias)"',
             path='$profile',
-            reload='& $profile',
+            reload='. $profile',
             can_configure_automatically=False)
 
     def _get_version(self):

thefuck/specific/nix.py

@@ -0,0 +1,3 @@
+from thefuck.utils import which
+
+nix_available = bool(which('nix'))

thefuck/specific/yum.py

@@ -0,0 +1,3 @@
+from thefuck.utils import which
+
+yum_available = bool(which('yum'))

thefuck/utils.py

@@ -98,7 +98,7 @@ def get_closest(word, possibilities, cutoff=0.6, fallback_to_first=True):
 
 
 def get_close_matches(word, possibilities, n=None, cutoff=0.6):
-    """Overrides `difflib.get_close_match` to controle argument `n`."""
+    """Overrides `difflib.get_close_match` to control argument `n`."""
     if n is None:
         n = settings.num_close_matches
     return difflib_get_close_matches(word, possibilities, n, cutoff)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py35,py36,py37
+envlist = py27,py35,py36,py37,py38
 
 [testenv]
 deps = -rrequirements.txt