A tool that automatically formats Python code to conform to the PEP 8 style guide
Project description
About
autopep8 formats Python code based on the output of the pep8 utility.
Installation
from pip:
pip install --upgrade autopep8
from easy_install:
easy_install -ZU autopep8
Requirements
autopep8 requires pep8 (>= 1.3). Older versions of pep8 will also work, but autopep8 will run pep8 in a subprocess in that case (for compatibility purposes).
Usage
execute tool:
$ autopep8 TARGET.py
before:
import sys, os;
print( 'hello' );
def someone_likes_semicolons( foo = None ,\
bar='bar'):
"""Hello; bye."""; 1; 2;3
print( 'A'<>foo) #<> is a deprecated form of !=
return 0;
def func11():
a=( 1,2, 3,"a" );
b =[100,200,300 ,9876543210,'This is my very long string that goes on and on and on' ]
return (a, b)
def func2(): total =(324942324324+32434234234234 -23423234243/ 324342342.+324234223432423412191) /12345.
def func22(): return {True: True}.has_key({'foo': 2}.has_key('foo'));
class UselessClass(object):
def __init__ ( self, bar ):
if bar : bar+=1; bar=bar* bar ; return bar
else: raise ValueError, 'I am an error'
def my_method(self):
print(self);
after:
import sys
import os
print('hello')
def someone_likes_semicolons(foo=None,
bar='bar'):
"""Hello; bye."""
1
2
3
print('A' != foo) # <> is a deprecated form of !=
return 0
def func11():
a = (1, 2, 3, "a")
b = [100, 200, 300, 9876543210,
'This is my very long string that goes on and on and on']
return (a, b)
def func2():
total = (324942324324 + 32434234234234 - 23423234243 / 324342342. +
324234223432423412191) / 12345.
def func22():
return ('foo' in {'foo': 2}) in {True: True}
class UselessClass(object):
def __init__(self, bar):
if bar:
bar += 1
bar = bar * bar
return bar
else:
raise ValueError('I am an error')
def my_method(self):
print(self)
options:
Usage: autopep8 [options] [filename [filename ...]]
A tool that automatically formats Python code to conform to the PEP 8 style
guide.
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-v, --verbose print verbose messages
-d, --diff print the diff for the fixed source
-i, --in-place make changes to files in place
-r, --recursive run recursively; must be used with --in-place or
--diff
-p PEP8_PASSES, --pep8-passes=PEP8_PASSES
maximum number of additional pep8 passes (default:
100)
--ignore=IGNORE do not fix these errors/warnings (e.g. E4,W)
--select=SELECT select errors/warnings (e.g. E4,W)
Testing
Test cases are in test/test_autopep8.py. They can be run directly via python test/test_autopep8.py or via tox. The latter is useful for testing against multiple Python interpreters.
Broad spectrum testing is available via test/acid.py. This script runs autopep8 against Python code and checks for correctness and completeness of the code fix transformations. test/acid_pypi.py makes use of acid.py to test against the latest released packages on PyPi. In a similar fashion, test/acid_github.py tests against Python code in Github repositories.
Links
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