python的tab自动补全_python3 tab参数自动补全-优快云博客

本文详细介绍了如何在Linux环境下配置Python环境，包括获取Python路径、创建Tab补全文件、安装readline库以及测试Tab补全功能。通过这些步骤，可以提升Python开发效率。

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1.获取python路径

python:~ #python3
Python 3.5.2 (default, Feb  6 2020, 00:14:34) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/local/python/lib/python35.zip', '/usr/local/python/lib/python3.5', '/usr/local/python/lib/python3.5/plat-linux', '/usr/local/python/lib/python3.5/lib-dynload', '/usr/local/python/lib/python3.5/site-packages']

2.创建tab py文件

python:~ #cd /usr/local/python/lib/python3.5/site-packages

python:/usr/local/python/lib/python3.5/site-packages #cat tab.py 
#!/usr/local/python/bin/python3
# python tab 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

3.安装readline

pip3 install readline
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Collecting readline
  Downloading http://mirrors.aliyun.com/pypi/packages/f4/01/2cf081af8d880b44939a5f1b446551a7f8d59eae414277fd0c303757ff1b/readline-6.2.4.1.tar.gz (2.3 MB)
     |████████████████████████████████| 2.3 MB 1.6 MB/s 
Installing collected packages: readline
    Running setup.py install for readline ... done
Successfully installed readline-6.2.4.1

4.测试

python:~ #python3
Python 3.5.2 (default, Feb  6 2020, 00:14:34) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys,tab
>>> sys.
Display all 103 possibilities? (y or n)
sys.__class__(              sys._debugmallocstats(      sys.getswitchinterval(
sys.__delattr__(            sys._getframe(              sys.gettrace(
sys.__dict__                sys._home                   sys.hash_info
sys.__dir__(                sys._mercurial              sys.hexversion
sys.__displayhook__(        sys._xoptions               sys.implementation