1. PEP 8 and autopep8
PyCon APAC 2013 LT / 2013.09.15
Hideo Hattori

2. whoami
C/Python/Zsh
My Python Projects
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code on ,
@hhatto
pgmagick otamapy genzshcomp meow
Github Bitbucket

3. PEP 8
coding conventions for the Python code
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http://www.python.org/dev/peps/pep-
0008/

4. PEP 8 modernisation
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http://hg.python.org/peps/rev/fb24c80e9afb

5. About autopep8
simple command-line tool
automatic formatting for Python Code
require
v0.9.4 (2013.09.08)
pep8
$ pip install autopep8

6. For Example
invalid PEP 8 code
import sys, os
n = True
if n != None:
print("none")
def f(x): return 2 * x

7. Output Auto-Formatting Code
$ autopep8 invalid.py
import sys
import os
n = True
if n != None:
print("none")
def f(x):
return 2 * x

8. Aggressive
$ autopep8 -a invalid.py
import sys
import os
n = True
if n is not None:
print("none")
def f(x):
return 2 * x

9. 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

10. Other Feature
ignore/select errors
max-line
recursive/jobs

11. ofiØ#”O •PEP 8³

12. ⁄¿autopep8³³›–Æ–z“o

13.
https://github.com/hhatto/autopep8

14. Thank you