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Groups > comp.lang.python > #98967

Re: non-blocking getkey?

From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Subject Re: non-blocking getkey?
Date 2015-11-19 00:24 +1100
Message-ID <mailman.414.1447853060.16136.python-list@python.org> (permalink)
References (1 earlier) <n2hfe1$n3l$1@dont-email.me> <n2hkho$d1j$1@news2.informatik.uni-stuttgart.de> <n2hlr7$d1j$2@news2.informatik.uni-stuttgart.de> <mailman.410.1447849595.16136.python-list@python.org> <n2ht4n$fas$1@news2.informatik.uni-stuttgart.de>

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On Thu, Nov 19, 2015 at 12:06 AM, Ulli Horlacher
<framstag@rus.uni-stuttgart.de> wrote:
>> 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.
>
> What are "astral chars"?

Characters not on the Basic Multilingual Plane (BMP). The Unicode
character set is divided into a number of planes of 65,536 codepoints
each, with the most commonly used ones on the first plane, the BMP. A
lot of programs either cannot use non-BMP characters or have problems
with them; for instance, anything that uses UTF-16 as its internal
representation (ECMAScript, notably; also Python 2 on Windows) sees
astral characters as pairs of code points.

> In my application the user MUST select files and directories (in one go).

It's extremely uncommon to be able to select a combination of files
and directories. The UI for this would be quite annoying, I think. You
may find it easier to have your own wrapper; for example, have a list
of selected files/directories, with buttons "Add File" and "Add
Directory" underneath. The former would use askopenfilenames (despite
the singular in the button name), and the latter would use
askdirectory. Trying to do both at once would be hard.

ChrisA

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Thread

non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 08:39 +0000
  Re: non-blocking getkey? Christian Gollwitzer <auriocus@gmx.de> - 2015-11-18 10:14 +0100
    Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 10:39 +0000
      Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 11:01 +0000
        Re: non-blocking getkey? Christian Gollwitzer <auriocus@gmx.de> - 2015-11-18 12:17 +0100
        Re: non-blocking getkey? Terry Reedy <tjreedy@udel.edu> - 2015-11-18 07:26 -0500
          Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 13:06 +0000
            Re: non-blocking getkey? Chris Angelico <rosuav@gmail.com> - 2015-11-19 00:24 +1100
              Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 13:57 +0000
            Re: non-blocking getkey? Steven D'Aprano <steve@pearwood.info> - 2015-11-19 00:38 +1100
              Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 13:51 +0000
                Re: non-blocking getkey? Chris Angelico <rosuav@gmail.com> - 2015-11-19 01:01 +1100
                Re: non-blocking getkey? Jussi Piitulainen <harvesting@makes.invalid> - 2015-11-18 16:13 +0200
        Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-18 16:50 +0000
          Re: non-blocking getkey? Terry Reedy <tjreedy@udel.edu> - 2015-11-18 12:55 -0500
            Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-19 15:48 +0000
              Re: non-blocking getkey? Michael Torrie <torriem@gmail.com> - 2015-11-19 09:31 -0700
              Re: non-blocking getkey? eryksun <eryksun@gmail.com> - 2015-11-20 02:43 -0600
                Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-23 17:01 +0000
                askopenfilename() (was: Re: non-blocking getkey?) Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-28 10:29 +0000
                Re: askopenfilename() Christian Gollwitzer <auriocus@gmx.de> - 2015-11-28 12:45 +0100
                Re: askopenfilename() Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-28 12:48 +0000
                Re: askopenfilename() Christian Gollwitzer <auriocus@gmx.de> - 2015-11-28 14:34 +0100
                Re: askopenfilename() Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-28 16:45 +0000
                Re: askopenfilename() Laura Creighton <lac@openend.se> - 2015-11-28 17:02 +0100
                Re: askopenfilename() Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-11-28 16:05 +0000
        Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-12-10 08:28 +0000
          Re: non-blocking getkey? Christian Gollwitzer <auriocus@gmx.de> - 2015-12-10 09:54 +0100
            Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-12-10 10:26 +0000
          Re: non-blocking getkey? Christian Gollwitzer <auriocus@gmx.de> - 2015-12-10 09:57 +0100
            Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-12-10 10:40 +0000
          Re: non-blocking getkey? Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2015-12-10 15:52 +0000
    Re: non-blocking getkey? eryksun <eryksun@gmail.com> - 2015-11-18 12:24 -0600

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