New submission from Noah Haasis <haasis_n...@yahoo.de>:

Pressing the tab key in the python REPL in my command line (cmder on windows 10 
32bit) causes an exception:
>>> Readline internal error                                                     
>>>                                                                   
Traceback (most recent call last):                                              
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\console\console.py",
 line 768, in hook_wrapper_23   
    res = ensure_str(readline_hook(prompt))                                     
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\rlmain.py",
 line 571, in readline                   
    self._readline_from_keyboard()                                              
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\rlmain.py",
 line 536, in _readline_from_keyboard    
    if self._readline_from_keyboard_poll():                                     
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\rlmain.py",
 line 556, in _readline_from_keyboard_pol
    result = self.mode.process_keyevent(event.keyinfo)                          
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\modes\emacs.py",
 line 243, in process_keyevent      
    r = self.process_keyevent_queue[-1](keyinfo)                                
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\modes\emacs.py",
 line 286, in _process_keyevent     
    r = dispatch_func(keyinfo)                                                  
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\modes\basemode.py",
 line 257, in complete           
    completions = self._get_completions()                                       
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\site-packages\pyreadline\modes\basemode.py",
 line 200, in _get_completions   
    r = self.completer(ensure_unicode(text), i)                                 
                                                                  
  File 
"C:\Users\leinw\AppData\Local\Programs\Python\Python36-32\lib\rlcompleter.py", 
line 80, in complete                                        
    readline.redisplay()                                                        
                                                                  
AttributeError: module 'readline' has no attribute 'redisplay'                  
                                                            

This happens even if python expects indentation.

----------
components: Windows
messages: 324366
nosy: noah.haasis, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: error in the repl due to indentation
versions: Python 3.6

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue34545>
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