~$ cat .pythonstartup import os    import readline    import rlcompleter    import atexit            #tab completion    readline.parse_and_bind("tab: complete")            #history file    history_file = os.path.join(os.environ["HOME"],".pythonhistory")    try:        readline.read_history_file(history_file)    except IOError:        pass    atexit.register(readline.write_history_file,history_file)            del os,history_file,readline,rlcompleter

.bashrc中追加

  export PYTHONSTARTUP="~/.pythonstartup"

或

  export PYTHONSTARTUP="$HOME/.pythonstartup"

source .bashrc使之生效

这样Python命令行就支持自动补全和记录历史命令的功能了