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From: Terry Reedy <tjreedy@udel.edu>
Newsgroups: comp.lang.python
Subject: Re: non-blocking getkey?
Date: Wed, 18 Nov 2015 07:26:12 -0500
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On 11/18/2015 6:01 AM, Ulli Horlacher wrote:
> Ulli Horlacher <framstag@rus.uni-stuttgart.de> wrote:
>
>> it is too complicated to rewrite my application from CLI to GUI.
>> But... is there a windows program with which one can select files and the
>> result is written to STDOUT?
>
> Found it:
>
> 	from Tkinter import Tk
> 	from tkFileDialog import askopenfilename
>
> 	Tk().withdraw()
> 	file = askopenfilename()

To get multiple names, add 's'.  On Windows, one uses control-leftclick 
to get multiple names.  Don't know about other systems.

 >>> fd.askopenfilenames()  # ^click 4 names
('F:/Python/dev/27/Lib/idlelib/aboutDialog.py', 
'F:/Python/dev/27/Lib/idlelib/AutoComplete.py', 
'F:/Python/dev/27/Lib/idlelib/AutoCompleteWindow.pyc', 
'F:/Python/dev/27/Lib/idlelib/Bindings.py')

The limitation is that this will not work if any of the file names 
contain astral (non-BMP) chars because tk cannot handle such characters.

-- 
Terry Jan Reedy