PEP 8 and autopep8 

PyCon APAC 2013 LT / 2013.09.15 Hideo Hattori

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PEP 8

coding conventions for the Python code

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http://www.python.org/dev/peps/pep-0008/

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About autopep8simple command-line tool

automatic formatting for Python Code

require

v0.9.4 (2013.09.08)

pep8

$ pip install autopep8

For Exampleinvalid PEP 8 code

import sys, os

n = Trueif n != None: print("none")

def f(x): return 2 * x

Output Auto-Formatting Code$ autopep8 invalid.py

import sysimport os

n = Trueif n != None: print("none")

def f(x): return 2 * x

Aggressive$ autopep8 -a invalid.py

import sysimport os

n = Trueif n is not None: print("none")

def f(x): return 2 * x

Print Diff$ autopep8 -d invalid.py

--- original/invalid.py+++ fixed/invalid.py@@ -1,7 +1,10 @@-import sys, os+import sys+import os

n = True if n != None: print("none")

-def f(x): return 2 * x++def f(x):+ return 2 * x

Other Featureignore/select errors

max-line

recursive/jobs

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 https://github.com/hhatto/autopep8

Thank you