Am 29.04.2019 um 22:51 schrieb Michael Lange:
Hi,
On Mon, 29 Apr 2019 13:16:50 +0200
Sibylle Koczian <nulla.epist...@web.de> wrote:
Hello,
the following script shows a Treeview with names and country codes of
some towns in Germany. Towns with country code "HE" or "BY" should be
shown with coloured background, in the case of "BY" additionally with
white text.
This works using Python 3.5 or 3.6. I seem to remember that it worked
with earlier versions of Python 3.7, but that's not certain. Using
Python 3.7.3 all the entries have white background and black text.
Opening an entry with Enter or double click shows the name of the town
in the Entry field, together with the country name, if the row has the
tag for HE or BY. So the entries have the tags they should, but the
color doesn't change.
Changing the font of an entry using tags does work.
All of these Python versions come with tcl/tk version 8.6, but I don't
know the patch numbers, they probably changed. The official
documentation for tkinter and for tcl/tk seems to show that the script
is correct. I can see no hint of recent changes in the use of tags,
tag_configure and the options usable with tags.
just a shot into the dark:
maybe the problem is not at all how the treeview handles tags, but how Tk
handles named colors? Did you try to use hex color specs like '#d9d9d9'
instead of 'darkgray' or 'lightgreen'? According to
https://www.tcl-lang.org/man/tcl8.6/TkCmd/colors.htm
there should be "dark gray" and "LightGreen", but maybe your version of
Tk somehow fails to treat the color names case-insensitive resp.
"space-insensitive".
That would be very nice. But no, I just forgot to mention it: I tried
with hex color specs and I tried with the most simple color names: just
"green" (and "white" for the foreground color of bavarian towns).
Nothing. BTW I used Python 3.7.3 with Windows 10 and with ArchLinux,
LXQt as desktop, everything freshly updated.
Thank you,
Sibylle
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