python如何以表格形式打印输出

 1 #!/usr/bin/python
 2 # -*- coding: utf-8 -*-
 3 
 4 import time
 5 import json
 6 
 7 # 数据项
 8 timingInfo = [{
 9     'url': 'https://aaa.bbb.net/ccc/article/details/11',
10     'duration(ms)': 121.12,
11     'start(ms)': 222,
12     'type': 'html',
13     'size(kb)': 22.01
14 }, {
15     'url': '/nd-element-in-list-to-another-list-of-strings',
16     'duration(ms)': 121.22,
17     'start(ms)': 3332,
18     'type': 'css',
19     'size(kb)': 22.01
20 }, {
21     'url': '/path2',
22     'duration(ms)': '121.12434234 (1212312.12 + 121212)',
23     'start(ms)': 3332,
24     'type': 'css',
25     'size(kb)': 22.01
26 }, {
27     'url': '/nd-element-in-list-to-another-list-of-strings',
28     'duration(ms)': 121.42323423423,
29     'start(ms)': 3332,
30     'type': 'css',
31     'size(kb)': 22.01
32 }, {
33     'url': 'path2',
34     'duration(ms)': '121.11 (111.11 + 20)',
35     'start(ms)': 3332,
36     'type': 'css',
37     'size(kb)': 22.01
38 }]
39 
40 # 提取表头
41 keyHeader = timingInfo[0].keys()
42 # 存放每列的最大长度
43 keyMaxLen = {}
44 
45 for item in timingInfo:
46     for i,h in enumerate(keyHeader):
47         # 计算每个属性对应的最大长度
48         maxLen = max(len(h), len(str(item[h])))
49         if keyMaxLen.get(h, None):
50             maxLen = max(maxLen, keyMaxLen[h])
51         keyMaxLen[h] = maxLen
52 
53 print keyMaxLen
54 
55 #
56 def printGroup(group):
57     for item in group:
58         print '\r'
59         for i,h in enumerate(keyHeader):
60             itemLen = keyMaxLen.get(h, str(h)) + 4
61             # 补空位并居中
62             s = str(item[h]).center(itemLen, '-' if item[h] == '-' else ' ')
63 
64             icon = '|'
65             if item[h] == '-':
66                 icon = '+'
67 
68             s = (icon if i == 0 else '') + s[1:len(s)] + icon
69             print s,
70 
71     print '\r'
72 
73 print '\n[timing info]'
74 
75 # 占位项
76 tag = {}
77 for i,h in enumerate(keyHeader):
78     tag[h] = '-'
79 # 前后添上
80 timingInfo.insert(0, tag)
81 timingInfo.append(tag)
82 
83 # 第一行需要先单独打印出来
84 printGroup([tag])
85 
86 # 再单独打印表头
87 for i,h in enumerate(keyHeader):
88     # 留空位4
89     itemLen = keyMaxLen.get(h, str(h)) + 4
90     # 快捷居中并补空位  左对齐可使用 ljust之类
91     s = h.center(itemLen)
92     s = ('|' if i == 0 else '') + s[1:len(s)] + '|'
93     print s,
94 
95 # 打印后面的数据项，包括两条 --+--占位
96 printGroup(timingInfo)

import prettytable as pt

# tb = pt.PrettyTable( ["City name", "Area", "Population", "Annual Rainfall"])
tb = pt.PrettyTable()
tb.field_names = ["City name", "Area", "Population", "Annual Rainfall"]
tb.add_row(["Adelaide",1295, 1158259, 600.5])
tb.add_row(["Brifasdfae",5905, 1857594, 1146.4])
tb.add_row(["Darwin", 112, 120900, 171423423423423424.7])
tb.add_row(["Hobart", 1357, 205556,619.5])

print(tb)