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 |
+-----------------+---------------+--------------+----------+-----------+---------------+--------------+----------+-----------+