A special case for 'Permission denied' error msg when trying to execute a

python scripy.

The script does not have execute permission and/or does not start with !#/usr/...
In that case, pre-pend the command with 'python' keyword.

Change-Id: Idf73ee9cf0a523f51c78672188a457b2fcedc1e6

tests/rules/test_python_command.py

@@ -0,0 +1,9 @@
+from thefuck.main import Command
+from thefuck.rules.sudo import match, get_new_command
+
+def test_match():
+    assert match(Command('', '', 'Permission denied'), None)
+    assert not match(Command('', '', ''), None)
+
+def test_get_new_command():
+    assert get_new_command(Command('./test_sudo.py', '', ''), None) == 'python ./test_sudo.py'