step 1: 用户主目录下创建并编辑文件.pythonstartup,文件内容如下:
#python startup file
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
step 2: 链接至环境变量,在用户主目录下的.bashrc文件中增加:
export PYTHONSTARTUP=".pythonstartup"
完成上述配置,即可实现python命令行tab键自动补全功能。