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)
输出结果：
['', '/usr/local/lib/python2.7/site-packages/setuptools-2.2-py2.7.egg', '/usr/local/lib/python2.7/site-packages/distribute-0.6.49-py2.7.egg', '/usr/local/lib/python2.7/site-packages/pip-1.5.4-py2.7.egg', '/usr/local/lib/python2.7/site-packages/Scrapy-0.22.2-py2.7.egg', '/usr/local/lib/python2.7/site-packages/six-1.5.2-py2.7.egg', '/usr/local/lib/python2.7/site-packages/cssselect-0.9.1-py2.7.egg', '/usr/local/lib/python2.7/site-packages/pyOpenSSL-0.14-py2.7.egg', '/usr/local/lib/python2.7/site-packages/lxml-3.3.2-py2.7-linux-x86_64.egg', '/usr/local/lib/python2.7/site-packages/queuelib-1.1.1-py2.7.egg', '/usr/local/lib/python2.7/site-packages/w3lib-1.5-py2.7.egg', '/usr/local/lib/python2.7/site-packages/Twisted-13.2.0-py2.7-linux-x86_64.egg', '/usr/local/lib/python2.7/site-packages/zope.interface-4.1.0-py2.7-linux-x86_64.egg', '/usr/local/lib/python2.7/site-packages/cryptography-0.2.2-py2.7-linux-x86_64.egg', '/usr/local/lib/python2.7/site-packages/cffi-0.8.1-py2.7-linux-x86_64.egg', '/usr/local/lib/python2.7/site-packages/pycparser-2.10-py2.7.egg', '/usr/local/lib/python2.7/site-packages/lesscpy-0.10.1-py2.7.egg', '/usr/local/lib/python2.7/site-packages/ply-3.4-py2.7.egg', '/usr/local/lib/python2.7/site-packages/gameobjects-0.0.3-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']
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