Make Changes suggested by @nvbn

* remove comments/doctrings at the top of files;
* move sudo-related stuff to sudo rule;
* for no_command case try to find most similar command, like, for example, in react_native_command_unrecognized rule.

tests/rules/test_hostscli.py

@@ -1,20 +1,6 @@
-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-#
-# vim: fenc=utf-8
-# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
-#
-#
-
-"""
-File name: test_hostscli.py
-Author: dhilipsiva <dhilipsiva@gmail.com>
-Date created: 2017-02-05
-"""
-
 import pytest
-from thefuck.rules.hostscli import no_command, need_sudo, no_website, \
-    match, get_new_command
+from thefuck.rules.hostscli import no_command, no_website, get_new_command, \
+    match
 from tests.utils import Command
 
 
@@ -24,14 +10,6 @@ Usage: hostscli [OPTIONS] COMMAND [ARGS]...
 %s "invalid".
 ''' % no_command
 
-need_sudo = '''
-%s:
-
-"sudo" permissions are required to run this command.
-
-Please run the last command again with sudo
-''' % need_sudo
-
 
 no_website = '''
 %s:
@@ -54,9 +32,6 @@ def test_match(command):
 @pytest.mark.parametrize('command, result', [
     (Command(
         'hostscli invalid', stderr=no_command), ['hostscli --help']),
-    (Command(
-        'hostscli block test', stderr=need_sudo),
-        ['sudo hostscli block test']),
     (Command(
         'sudo hostscli block a_website_that_does_not_exist',
         stderr=no_website),

thefuck/rules/hostscli.py

@@ -1,27 +1,14 @@
-#! /usr/bin/env python
-# -*- coding: utf-8 -*-
-#
-# vim: fenc=utf-8
-# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
-#
-#
+import re
 
-"""
-File name: hostscli.py
-Author: dhilipsiva <dhilipsiva@gmail.com>
-Date created: 2017-02-05
-"""
-
-from thefuck.utils import for_app
+from thefuck.utils import for_app, replace_command
 
 no_command = "Error: No such command"
-need_sudo = "hostscli.errors.SudoRequiredError"
 no_website = "hostscli.errors.WebsiteImportError"
 
 
 @for_app("hostscli")
 def match(command):
-    errors = [no_command, need_sudo, no_website]
+    errors = [no_command, no_website]
     for error in errors:
         if error in command.stderr:
             return True
@@ -31,7 +18,7 @@ def match(command):
 def get_new_command(command):
     if no_website in command.stderr:
         return ['hostscli websites']
-    if need_sudo in command.stderr:
-        return ['sudo {}'.format(command.script)]
-    if no_command in command.stderr:
-        return ['hostscli --help']
+    misspelled_command = re.findall(
+        r'Error: No such command "(.*)"', command.stderr)[0]
+    commands = ['block', 'unblock', 'websites', 'block_all', 'unblock_all']
+    return replace_command(command, misspelled_command, commands)

thefuck/rules/sudo.py

@@ -20,7 +20,8 @@ patterns = ['permission denied',
             'authentication is required',
             'edspermissionerror',
             'you don\'t have write permissions',
-            'use `sudo`']
+            'use `sudo`',
+            'SudoRequiredError']
 
 
 def match(command):