Python中数据格式化的pprint和pformat

pprint模块中使用的格式化可以按照一种格式正确的显示数据, 这种格式即可被解析器解析, 又很易读. 输出保存在一个单行内, 但如果有必要, 在分割多行数据时也可使用缩进表示.

import sys
import pprint
pprint.pprint(sys.path)

运行结果：

['',

'/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-x86_64.egg',

'/usr/local/lib/python2.7/site-packages/web.py-0.36-py2.7.egg',

'/usr/local/lib/python2.7/site-packages/SQLAlchemy-0.7.5-py2.7-linux-x86_64.egg',

'/usr/local/lib/python2.7/site-packages/thrift-0.8.0-py2.7-linux-x86_64.egg',

'/usr/local/lib/python2.7/site-packages/setuptools-0.9.8-py2.7.egg',

'/usr/local/lib/python27.zip',

'/usr/local/lib/python2.7',

'/usr/local/lib/python2.7/plat-linux2',

'/usr/local/lib/python2.7/lib-tk',

'/usr/local/lib/python2.7/lib-old',

'/usr/local/lib/python2.7/lib-dynload',

'/usr/local/lib/python2.7/site-packages',

'/usr/local/lib/python2.7/site-packages/PIL']

如果仅仅想获得数据而不是输出数据也可以用pformat

import sys
import pprint
str = pprint.pformat(sys.path)
print str

输出结果和上面是一样的