linux python tab 补全

jrgf

　　

　　

　　
第一步：查看python系统路径

[root@localhost tools]# python
Python 2.7.12 (default, Jul  4 2016, 02:08:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/local/lib/python27.zip', '/usr/local/lib/python2.7', '/usr/local/lib/python2.7/plat-linux2', '/usr/local/lib/python2.7/lib-tk', '/usr/local/lib/python2.7/lib-old', '/usr/local/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/site-packages']
>>> quit();　　第二步：编写startup.py ,并加入到python系统路径中。

#!/usr/bin/python
# python startup file
import sys
import readline
import rlcompleter
import atexit
import os
# 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
###############################################################[root@localhost tools]# cd /usr/local/lib/python2.7/site-packages
[root@localhost site-packages]# ll
total 8
-rw-r--r-- 1 root root 119 Jul  4 02:09 README
-rw-r--r-- 1 root root 407 Jul  4 02:16 startup.py
[root@localhost site-packages]# chmod +x startup.py
[root@localhost site-packages]# cd
[root@localhost ~]# python
Python 2.7.12 (default, Jul  4 2016, 02:08:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import startup
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/startup.py", line 5, in <module>
    import readline
ImportError: No module named readline　　故障解决：

>>> import startup
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/site-packages/startup.py", line 5, in <module>
    import readline
ImportError: No module named readline
>>>
>>> quit();
[root@localhost ~]#　　解决方法：
这是因为你安装的python没有readline模块，需安装一下。
1):需要下载readline
2):安装readline-6.3.tar.gz时，下载

wget http://ftp.gnu.org/gnu/readline/readline-6.3.tar.gz
tar xf readline-6.3.tar.gz
cd readline-6.3
./configure
make
make install　　2):重新编译Python

cd Python-2.6.6
make install　　
第四步：可以在系统环境变量中，加入读取路径，这样就免去了每次导入的麻烦

[root@python python2.7]# cat ~/.bashrc
export PYTHONSTARTUP=/usr/local/lib/python2.7/site-packages/startup.py　　即可。
完美解决

[root@localhost Python-2.7.12]# python
Python 2.7.12 (default, Jul  4 2016, 02:08:58)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> import sys
>>>
>>>