[python2] python 打印表格 prettytable

rpm包：

[root@D129 cli]# yum info python-prettytable
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Available Packages
Name        : python-prettytable
Arch        : noarch
Version     : 0.7.
Release     : .el7
Size        :  k
Repo        : base//x86_64
Summary     : Python library to display tabular data in tables
URL         : http://pypi.python.org/pypi/PrettyTable
License     : BSD
Description : PrettyTable is a simple Python library designed to make it quick and easy to
            : represent tabular data in visually appealing ASCII tables. It was inspired by
            : the ASCII tables used in the PostgreSQL shell psql. PrettyTable allows for
            : selection of which columns are to be printed, independent alignment of columns
            : (left or right justified or centred) and printing of "sub-tables" by specifying
            : a row range.

[root@D129 cli]# 

官网：

https://code.google.com/archive/p/prettytable/

文档：

https://code.google.com/archive/p/prettytable/wikis/Tutorial.wiki

小例子:

from prettytable import PrettyTable

... ...

x = PrettyTable(["port", "rx_pps", "rx_bps", "rx_drops", "rx_errors", "tx_pps", "tx_bps", "tx_drops", "tx_errors"])
x.align["port"] = "l"
... ...
for i in range(length):
    x.add_row([new_item.port, rpps, rbps, rx_drop, rx_errs, tpps, tbps, tx_drop, tx_errs])
sys.stderr.write(str(x) + "\n")
... ...

输出:

[root@A04-R08-I244-12-9283C72 tong]# ./ovs-stat.py 1>/dev/null
+-----------------+--------+--------+----------+-----------+--------+--------+----------+-----------+
| port            | rx_pps | rx_bps | rx_drops | rx_errors | tx_pps | tx_bps | tx_drops | tx_errors |
+-----------------+--------+--------+----------+-----------+--------+--------+----------+-----------+
| dpdk0           |  0.0   |  0.0   |    0     |     0     |  0.0   |  0.0   |    0     |     0     |
| port-uzwlar0rxo |  0.0   |  0.0   |    0     |     0     |  0.0   |  0.0   |    0     |     0     |
| vx10.0.57.13    |  0.0   |  0.0   |    0     |     0     |  0.0   |  0.0   |    0     |     0     |
| vx10.0.54.235   |  0.0   |  0.0   |    0     |     0     |  0.0   |  0.0   |    0     |     0     |
+-----------------+--------+--------+----------+-----------+--------+--------+----------+-----------+
+-----------------+---------------+--------------+----------+-----------+---------------+--------------+----------+-----------+
| port            |     rx_pps    |    rx_bps    | rx_drops | rx_errors |     tx_pps    |    tx_bps    | tx_drops | tx_errors |
+-----------------+---------------+--------------+----------+-----------+---------------+--------------+----------+-----------+
| dpdk0           | 1.54353919126 | 180.20820058 |    0     |     0     | 1.54353919126 | 183.68116376 |    0     |     0     |
| port-uzwlar0rxo |      0.0      |     0.0      |    0     |     0     |      0.0      |     0.0      |    0     |     0     |
| vx10.0.57.13    |      0.0      |     0.0      |    0     |     0     |      0.0      |     0.0      |    0     |     0     |
| vx10.0.54.235   |      0.0      |     0.0      |    0     |     0     |      0.0      |     0.0      |    0     |     0     |
+-----------------+---------------+--------------+----------+-----------+---------------+--------------+----------+-----------+