Linux下Python模式下【Tab】自动补全

来源：互联网发布：沃特沃德知乎编辑：程序博客网时间：2024/06/06 14:20

在Python模式交互下，tab自动补全会提高代码效率，通过以下步骤可以很方便的实现自动补全。

1.获取操作目录

[root@liu site-packages]# pythonPython 2.6.6 (r266:84292, Nov 22 2013, 12:16:22) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2Type "help", "copyright", "credits" or "license" for more information.>>> import sys>>> sys.path['', '/usr/lib64/python26.zip', '/usr/lib64/python2.6', '/usr/lib64/python2.6/plat-linux2', '/usr/lib64/python2.6/lib-tk', '/usr/lib64/python2.6/lib-old', '/usr/lib64/python2.6/lib-dynload', '/usr/lib64/python2.6/site-packages', '/usr/lib64/python2.6/site-packages/gtk-2.0', '/usr/lib/python2.6/site-packages']>>>

可以看出，我的工作目录是/usr/lib/python2.6/site-packages/。

2.进入工作目录，编写tab.py补全文件

[root@liu site-packages]# cd /usr/lib/python2.6/site-packages/[root@liu site-packages]# vim tab.py

tab.py内容如下，建议粘贴的时候保证格式正确性

  1 #!/usr/bin/python     2 # python tab file     3 import sys  4 import readline  5 import rlcompleter  6 import atexit  7 import os  8 # tab completion     9 readline.parse_and_bind('tab: complete') 10 # history file    11 histfile = os.path.join(os.environ['HOME'], '.pythonhistory') 12 try: 13     readline.read_history_file(histfile) 14 except IOError: 15     pass 16 atexit.register(readline.write_history_file, histfile) 17  18 del os, histfile, readline, rlcompleter

3.添加环境变量，使其生效

[root@liu site-packages]# cd [root@liu ~]# vim .bashrc

在末尾添加一行

export PYTHONSTARTUP=/usr/lib/python2.6/site-packages/tab.py

4.重读.bashrc文件

source .bashrc

或者

. .bashrc

5.测试效果

[root@liu ~]# pythonPython 2.6.6 (r266:84292, Nov 22 2013, 12:16:22) [GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2Type "help", "copyright", "credits" or "license" for more information.>>> import math>>> math.math.__class__(         math.acos(              math.fsum(math.__delattr__(       math.acosh(             math.hypot(math.__dict__           math.asin(              math.isinf(math.__doc__            math.asinh(             math.isnan(math.__file__           math.atan(              math.ldexp(math.__format__(        math.atan2(             math.log(math.__getattribute__(  math.atanh(             math.log10(math.__hash__(          math.ceil(              math.log1p(math.__init__(          math.copysign(          math.modf(math.__name__           math.cos(               math.pimath.__new__(           math.cosh(              math.pow(math.__package__        math.degrees(           math.radians(math.__reduce__(        math.e                  math.sin(math.__reduce_ex__(     math.exp(               math.sinh(math.__repr__(          math.fabs(              math.sqrt(math.__setattr__(       math.factorial(         math.tan(math.__sizeof__(        math.floor(             math.tanh(math.__str__(           math.fmod(              math.trunc(math.__subclasshook__(  math.frexp(             >>> math.

完成。我一开始一直报错，然后通过排查就是因为tab.py格式不正确。注意其格式。

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