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【教程】 PrettyTable介绍 - 让你的日志数据更美观

吃瓜群众小王发表于：5 月 10 日 00：14回复(1)

Python通过prettytable模块可以将输出内容如表格方式整齐的输出。

使用该模块，用户可以在日志中输出清晰的日志文档。

PrettyTable介绍¶

Python通过prettytable模块可以将输出内容如表格方式整齐的输出。

使用该模块，用户可以在日志中输出清晰的日志文档。

常用方法如下：¶

sortby - name of field to sort rows by
reversesort - True or False to sort in descending or ascending order
int_format - controls formatting of integer data
float_format - controls formatting of floating point data

add_row(row)
    """Add a row to the table

    Arguments:

    row - row of data, should be a list with as many elements as the table
    has fields"""

del_row(row_index)
    """Delete a row to the table

    Arguments:

    row_index - The index of the row you want to delete.  Indexing starts at 0."""

add_column(fieldname, column, align="c", valign="t")
    """Add a column to the table.

    Arguments:

    fieldname - name of the field to contain the new column of data
    column - column of data, should be a list with as many elements as the
    table has rows
    align - desired alignment for this column - "l" for left, "c" for centre and "r" for right
    valign - desired vertical alignment for new columns - "t" for top, "m" for middle and "b" for bottom"""

clear_rows()
    """Delete all rows from the table but keep the current field names"""

clear()
    """Delete all rows and field names from the table, maintaining nothing but styling options"""

示例如下：

from prettytable import *

x = PrettyTable(["City name", "Area", "Population", "Annual Rainfall"])
x.sortby = "Population"
x.reversesort = True
x.int_format["Area"] = "04d"
x.float_format = "6.1f"
x.align["City name"] = "l" # Left align city names
x.add_row(["Adelaide", 1295, 1158259, 600.5])
x.add_row(["Brisbane", 5905, 1857594, 1146.4])
x.add_row(["Darwin", 112, 120900, 1714.7])
x.add_row(["Hobart", 1357, 205556, 619.5])
x.add_row(["Sydney", 2058, 4336374, 1214.8])
x.add_row(["Melbourne", 1566, 3806092, 646.9])
x.add_row(["Perth", 5386, 1554769, 869.4])
print x 

+-----------+-------+------------+-----------------+
| City name |  Area | Population | Annual Rainfall |
+-----------+-------+------------+-----------------+
| Sydney    | 2058d |  4336374   |     1214.8f     |
| Melbourne | 1566d |  3806092   |      646.9f     |
| Brisbane  | 5905d |  1857594   |     1146.4f     |
| Perth     | 5386d |  1554769   |      869.4f     |
| Adelaide  | 1295d |  1158259   |      600.5f     |
| Hobart    | 1357d |   205556   |      619.5f     |
| Darwin    | 0112d |   120900   |     1714.7f     |
+-----------+-------+------------+-----------------+

# 通过行添加
row = PrettyTable()
row.field_names = ["City name", "Area", "Population", "Annual Rainfall"]
row.add_row(["Adelaide",1295, 1158259, 600.5])
row.add_row(["Brisbane",5905, 1857594, 1146.4])
row.add_row(["Darwin", 112, 120900, 1714.7])
row.add_row(["Hobart", 1357, 205556, 619.5])
row.add_row(["Sydney", 2058, 4336374, 1214.8])
row.add_row(["Melbourne", 1566, 3806092, 646.9])
row.add_row(["Perth", 5386, 1554769, 869.4])
print row

+-----------+------+------------+-----------------+
| City name | Area | Population | Annual Rainfall |
+-----------+------+------------+-----------------+
|  Adelaide | 1295 |  1158259   |      600.5      |
|  Brisbane | 5905 |  1857594   |      1146.4     |
|   Darwin  | 112  |   120900   |      1714.7     |
|   Hobart  | 1357 |   205556   |      619.5      |
|   Sydney  | 2058 |  4336374   |      1214.8     |
| Melbourne | 1566 |  3806092   |      646.9      |
|   Perth   | 5386 |  1554769   |      869.4      |
+-----------+------+------------+-----------------+

# 通过列添加
col = PrettyTable()
col.add_column("City name",["Adelaide","Brisbane","Darwin","Hobart","Sydney","Melbourne","Perth"],align="l",valign="t")
col.add_column("Area", [1295, 5905, 112, 1357, 2058, 1566, 5386])
col.add_column("Population", [1158259, 1857594, 120900, 205556, 4336374, 3806092, 1554769])
col.add_column("Annual Rainfall",[600.5, 1146.4, 1714.7, 619.5, 1214.8, 646.9, 869.4])
print col

+-----------+------+------------+-----------------+
| City name | Area | Population | Annual Rainfall |
+-----------+------+------------+-----------------+
| Adelaide  | 1295 |  1158259   |      600.5      |
| Brisbane  | 5905 |  1857594   |      1146.4     |
| Darwin    | 112  |   120900   |      1714.7     |
| Hobart    | 1357 |   205556   |      619.5      |
| Sydney    | 2058 |  4336374   |      1214.8     |
| Melbourne | 1566 |  3806092   |      646.9      |
| Perth     | 5386 |  1554769   |      869.4      |
+-----------+------+------------+-----------------+

# 行列混输
mix = PrettyTable()
mix.field_names = ["City name", "Area"]
mix.add_row(["Adelaide",1295])
mix.add_row(["Brisbane",5905])
mix.add_row(["Darwin", 112])
mix.add_row(["Hobart", 1357])
mix.add_row(["Sydney", 2058])
mix.add_row(["Melbourne", 1566])
mix.add_row(["Perth", 5386])
mix.add_column("Population", [1158259, 1857594, 120900, 205556, 4336374, 3806092, 1554769])
mix.add_column("Annual Rainfall",[600.5, 1146.4, 1714.7, 619.5, 1214.8, 646.9, 869.4])
print mix

+-----------+------+------------+-----------------+
| City name | Area | Population | Annual Rainfall |
+-----------+------+------------+-----------------+
|  Adelaide | 1295 |  1158259   |      600.5      |
|  Brisbane | 5905 |  1857594   |      1146.4     |
|   Darwin  | 112  |   120900   |      1714.7     |
|   Hobart  | 1357 |   205556   |      619.5      |
|   Sydney  | 2058 |  4336374   |      1214.8     |
| Melbourne | 1566 |  3806092   |      646.9      |
|   Perth   | 5386 |  1554769   |      869.4      |
+-----------+------+------------+-----------------+

# 清空行内容
mix.clear_rows()
print mix

+-----------+------+------------+-----------------+
| City name | Area | Population | Annual Rainfall |
+-----------+------+------------+-----------------+
+-----------+------+------------+-----------------+

# 清空内容
mix.clear()
print mix

++
||
++
++

# 加入转义字符
t = PrettyTable(['Field 1', 'Field 2'])
t.add_row(['value 1', 'value2\nsecond line'])
t.add_row(['value 3\n\nother line', 'value4\n\n\nvalue5'])
print t.get_string(hrules=ALL)

+------------+-------------+
|  Field 1   |   Field 2   |
+------------+-------------+
|  value 1   |    value2   |
|            | second line |
+------------+-------------+
|  value 3   |    value4   |
|            |             |
| other line |             |
|            |    value5   |
+------------+-------------+

# 测试多种语言的支持情况
x = PrettyTable(["Kanji", "Hiragana", "English"])
x.add_row(["神戸", "こうべ", "Kobe"])
x.add_row(["京都", "きょうと", "Kyoto"])
x.add_row(["長崎", "ながさき", "Nagasaki"])
x.add_row(["名古屋", "なごや", "Nagoya"])
x.add_row(["大阪", "おおさか", "Osaka"])
x.add_row(["札幌", "さっぽろ", "Sapporo"])
x.add_row(["東京", "とうきょう", "Tokyo"])
x.add_row(["横浜", "よこはま", "Yokohama"])
print x

+--------+------------+----------+
| Kanji  |  Hiragana  | English  |
+--------+------------+----------+
|  神戸  |   こうべ   |   Kobe   |
|  京都  |  きょうと  |  Kyoto   |
|  長崎  |  ながさき  | Nagasaki |
| 名古屋 |   なごや   |  Nagoya  |
|  大阪  |  おおさか  |  Osaka   |
|  札幌  |  さっぽろ  | Sapporo  |
|  東京  | とうきょう |  Tokyo   |
|  横浜  |  よこはま  | Yokohama |
+--------+------------+----------+

       

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