readline library

readline is widely used input lib, all the key bindings are from emacs

GNU readline key bindings

key action  note
^a  moves the cursor to the beginning of the line    a 是第一个字母
^b  moves it one position to the left    b 是 back 的缩写
^c  send SIGINT or KeybordInterrupt 
^d  send eof on empty line  
^d  erase next char 
^e  to the end   e 表示 end
^f   把光标向前移动一格   f 表示 forward
^h   把光标向前删除     h 表示 histroy?
^i  自动补全, 和 tab 功能一样    
^k  删除到行尾    k表示kill
^y  粘贴删除的字符  y 表示 yank
^_  undo    
^p  previous    
^n  next    
^r  reverse search  r for reverse
^s  search  s for search

Using readline in python

actually the input function is just readline enabled, the missing functionality is history support


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