对于很多新手，当然我也是新手，在命令行里学习python的时候占满了屏幕，很不习惯，特别是使用linux习惯了，使用clear清屏，这样的感觉非常好，但是python下面没有这样的命令和功能，下面为了解决这个问题，本人写了个简单的模块
1 先来看下没有清屏的结果
[[email protected] ~]# python Python 2.6.6 (r266:84292, Nov 22 2013, 12:11:10) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>>
这样特别让人厌恶，至少我有这样的感觉
2 解决办法
[[email protected] ~]# cat clear.py
#!/usr/bin/python
import os
def clear():
os.system(‘clear‘)
3 为了更使用方便，我们不用每次都使用import导入
[[email protected] ~]# cat startup.py
#!/usr/bin/python
# python startup file
import sys
import readline
import rlcompleter
import atexit
import os
import clear
# tab completion
readline.parse_and_bind(‘tab: complete‘)
# history file
histfile = os.path.join(os.environ[‘HOME‘], ‘.pythonhistory‘)
try:
readline.read_history_file(histfile)
except IOError:
pass
atexit.register(readline.write_history_file, histfile)
del os, histfile, readline, rlcompleter
大家留意看下import clear 我上面这个脚本是python的tab功能
4 设置环境变量
del os, histfile, readline, rlcompleter
[[email protected] ~]# cat .bashrc
# .bashrc
# User specific aliases and functions
alias rm=‘rm -i‘
alias cp=‘cp -i‘
alias mv=‘mv -i‘
export PYTHONSTARTUP=/root/startup.py
# Source global definitions
if [ -f /etc/bashrc ]; then
. /etc/bashrc
fi
[[email protected] ~]# source .bashrc
[[email protected] ~]#
5 测试
[[email protected] ~]# python Python 2.6.6 (r266:84292, Nov 22 2013, 12:11:10) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> clear.clear() >>>
这里的效果贴出来不明显，大家动手试下，不懂的话可以在下面留言
python 命令行里实现clear清屏技巧
时间： 2024-08-09 10:23:10