python中的pprint折腾记

1.背景

看到这里提到了pprint。
打算去试试.

2.pprint简介

找到在线官网解释:

pprint — data pretty printer

就是一个,方便大家打印一些,相对复杂的变量的好东西。

3.使用pprint

去写点代码试试。

代码:

代码如下:

#——————————————————————————-
# name: 【记录】折腾python中的pprint
# author: crifan li
#
# created: 06/01/2013
# copyright: (c) crifan li 2013
#——————————————————————————-

import pprint;
import re;

def pprintdemo():
varslist = [
[1, 2, 3],
[“ab”, “c”, “def”],
re.compile(“\w+”),
(“123”, “abc”),
{
“key1″:”value1”,
“key2″:”value2”,
},
];

for value in varslist:
print value;

print “-“*80;

pp = pprint.prettyprinter(indent=4);
for value in varslist:
pp.pprint(value);

print “=”*80;
stuff = [‘spam’, ‘eggs’, ‘lumberjack’, ‘knights’, ‘ni’];
stuff.insert(0, stuff[:]);
print stuff;
print “-“*80;
pp.pprint(stuff)

if __name__ == ‘__main__’:
pprintdemo();

效果:

代码如下:

[1, 2, 3]
[‘ab’, ‘c’, ‘def’]

(‘123’, ‘abc’)
{‘key2’: ‘value2’, ‘key1’: ‘value1’}
——————————————————————————–
[1, 2, 3]
[‘ab’, ‘c’, ‘def’]

(‘123’, ‘abc’)
{ ‘key1’: ‘value1’, ‘key2’: ‘value2’}
================================================================================
[[‘spam’, ‘eggs’, ‘lumberjack’, ‘knights’, ‘ni’], ‘spam’, ‘eggs’, ‘lumberjack’, ‘knights’, ‘ni’]
——————————————————————————–
[ [‘spam’, ‘eggs’, ‘lumberjack’, ‘knights’, ‘ni’],
‘spam’,
‘eggs’,
‘lumberjack’,
‘knights’,
‘ni’]

4.总结

pprint,有点意思。

以后可以用在代码调试过程中。

Posted in 未分类