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Writing to clipboard in Python 3.11

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From: rob.cli...@btinternet.com (Rob Cliffe)
Newsgroups: comp.lang.python
Subject: Writing to clipboard in Python 3.11
Date: Mon, 6 Nov 2023 00:51:03 +0000
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by: Rob Cliffe - Mon, 6 Nov 2023 00:51 UTC

Recently I switched from Python 3.8.3 to Python 3.11.4. A strange
problem appeared which was not there before:
I am using the win32clipboard backage (part of pywin32), and when I use
SetClipboardData() to write text which consists ENTIRELY OF DIGITS to
the clipboard, I either get an error (not always the same error message)
or a program crash. The problem does not appear if I use
SetClipboardText() instead.
Sample program:

from win32clipboard import *
OpenClipboard()
SetClipboardData(CF_UNICODETEXT, "A")
SetClipboardData(CF_UNICODETEXT, "A0")
SetClipboardData(CF_UNICODETEXT, "0A")
SetClipboardText("0", CF_UNICODETEXT)
print("OK so far")
SetClipboardData(CF_UNICODETEXT, "0")
CloseClipboard()

Sample output:

OK so far
Traceback (most recent call last):
File "R:\W.PY", line 8, in <module>
SetClipboardData(CF_UNICODETEXT, "0")
pywintypes.error: (0, 'SetClipboardData', 'No error message is available')

I can get round the problem by using SetClipboardText(). But can anyone
shed light on this?
Best wishes
Rob Cliffe

Breadth-first search is the bulldozer of science. -- Randy Goebel

devel / comp.lang.python / Writing to clipboard in Python 3.11

Subject	Author
Writing to clipboard in Python 3.11	Rob Cliffe