diff --git a/tests/rules/test_remove_shell_prompt_literal.py b/tests/rules/test_remove_shell_prompt_literal.py
index f6fd7ba7..7c7149bf 100644
--- a/tests/rules/test_remove_shell_prompt_literal.py
+++ b/tests/rules/test_remove_shell_prompt_literal.py
@@ -3,30 +3,31 @@ from thefuck.rules.remove_shell_prompt_literal import match, get_new_command
 from thefuck.types import Command
 
 
-@pytest.mark.parametrize('command',
+@pytest.mark.parametrize(
+    "command",
     [
-        Command('$ cd newdir', '$: command not found'),
-        Command(' $ cd newdir', '$: command not found'),
-    ])
+        Command("$ cd newdir", "$: command not found"),
+        Command(" $ cd newdir", "$: command not found"),
+    ],
+)
 def test_match(command):
     assert match(command)
 
 
-@pytest.mark.parametrize('command',
-    [
-        Command('$', ''),
-        Command('$?', ''),
-        Command(' $?', ''),
-        Command('', ''),
-    ])
+@pytest.mark.parametrize(
+    "command",
+    [Command("$", ""), Command("$?", ""), Command(" $?", ""), Command("", "")],
+)
 def test_not_match(command):
     assert not match(command)
 
 
-@pytest.mark.parametrize('command, new_command',
+@pytest.mark.parametrize(
+    "command, new_command",
     [
-        (Command('$ cd newdir', ''), 'cd newdir'),
-        (Command('$ python3 -m virtualenv env', ''), 'python3 -m virtualenv env'),
-    ])
+        (Command("$ cd newdir", ""), "cd newdir"),
+        (Command("$ python3 -m virtualenv env", ""), "python3 -m virtualenv env"),
+    ],
+)
 def test_get_new_command(command, new_command):
     assert get_new_command(command) == new_command
diff --git a/thefuck/rules/remove_shell_prompt_literal.py b/thefuck/rules/remove_shell_prompt_literal.py
index 6942b67c..4bdc558b 100644
--- a/thefuck/rules/remove_shell_prompt_literal.py
+++ b/thefuck/rules/remove_shell_prompt_literal.py
@@ -10,11 +10,16 @@ bash: $: command not found...
 
 import re
 
+
 def match(command):
-    return ("$: command not found" in command.output and
-            re.search(r"^[\s]*\$ [\S]+", command.script) is not None)
+    return (
+        "$: 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()
 
-requires_output = True
\ No newline at end of file
+
+requires_output = True