前言

本文主要介绍 python 中输出表格的两种方式，即分别使用tabulate 和 prettytable。

tabulate

安装、导入

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pip install tabulate

from tabulate import tabulate

从 list 生成表格

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>>> table = [['First Name', 'Last Name', 'Age'], ['John', 'Smith', 39], ['Mary', 'Jane', 25], ['Jennifer', 'Doe', 28]]
>>> print(tabulate(table))
----------  ---------  ---
First Name  Last Name  Age
John        Smith      39
Mary        Jane       25
Jennifer    Doe        28

设定表头

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>>> print(tabulate(table, headers='firstrow'))
First Name    Last Name      Age
------------  -----------  -----
John          Smith           39
Mary          Jane            25
Jennifer      Doe             28

传参修改样式

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>>> print(tabulate(table, headers='firstrow', tablefmt='fancy_grid'))
╒══════════════╤═════════════╤═══════╕
│ First Name   │ Last Name   │   Age │
╞══════════════╪═════════════╪═══════╡
│ John         │ Smith       │    39 │
├──────────────┼─────────────┼───────┤
│ Mary         │ Jane        │    25 │
├──────────────┼─────────────┼───────┤
│ Jennifer     │ Doe         │    28 │
╘══════════════╧═════════════╧═══════╛
>>> print(tabulate(table, headers='firstrow', tablefmt='grid'))
+--------------+-------------+-------+
| First Name   | Last Name   |   Age |
+==============+=============+=======+
| John         | Smith       |    39 |
+--------------+-------------+-------+
| Mary         | Jane        |    25 |
+--------------+-------------+-------+
| Jennifer     | Doe         |    28 |
+--------------+-------------+-------+

使用 dict 生成表格

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>>> info = {'First Name': ['John', 'Mary', 'Jennifer'], 'Last Name': ['Smith', 'Jane', 'Doe'], 'Age': [39, 25, 28]}
>>> print(tabulate(info, headers='keys', tablefmt='grid'))
+--------------+-------------+-------+
| First Name   | Last Name   |   Age |
+==============+=============+=======+
| John         | Smith       |    39 |
+--------------+-------------+-------+
| Mary         | Jane        |    25 |
+--------------+-------------+-------+
| Jennifer     | Doe         |    28 |
+--------------+-------------+-------+

显示索引

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>>> print(tabulate(info, headers='keys', tablefmt='grid', showindex=True))
+----+--------------+-------------+-------+
|    | First Name   | Last Name   |   Age |
+====+==============+=============+=======+
|  0 | John         | Smith       |    39 |
+----+--------------+-------------+-------+
|  1 | Mary         | Jane        |    25 |
+----+--------------+-------------+-------+
|  2 | Jennifer     | Doe         |    28 |
+----+--------------+-------------+-------+

prettytable

安装、导入

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pip install prettytable
from prettytable import PrettyTable

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tb = PrettyTable() # 生成表格对象
tb.field_names = ['Index', 0, 1, 2, 3] # 定义表头
tb.add_row(['Alice',1,2,3,4]) # 添加一行，列是 column
tb.add_row(['Bob',2,3,4,5])

参考