8000 Python 3.11 + windows-latest → "Tcl wasn't installed properly." randomly happens · Issue #1102 · actions/setup-python · GitHub
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Python 3.11 + windows-latest → "Tcl wasn't installed properly." randomly happens #1102

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34j opened this issue May 11, 2025 · 1 comment
Open
2 of 5 tasks

Python 3.11 + windows-latest → "Tcl wasn't installed properly." randomly happens #1102

34j opened this issue May 11, 2025 · 1 comment
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@priya-kinthali
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@34j
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34j commented May 11, 2025 •
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Description:

The following error sometimes (randomly) occurs (and sometimes does not) when trying to use maplotlib on GitHub Actions with Python 3.11 + windows-latest. Does not happen with Python 3.12, 3.10 and/or Linux, MacOS.

>       self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
E       _tkinter.TclError: Can't find a usable init.tcl in the following directories: 
E           {C:\hostedtoolcache\windows\Python\3.11.9\x64\tcl\tcl8.6}
E       
E       C:/hostedtoolcache/windows/Python/3.11.9/x64/tcl/tcl8.6/init.tcl: couldn't read file "C:/hostedtoolcache/windows/Python/3.11.9/x64/tcl/tcl8.6/init.tcl": No error
E       couldn't read file "C:/hostedtoolcache/windows/Python/3.11.9/x64/tcl/tcl8.6/init.tcl": No error
E           while executing
E       "source C:/hostedtoolcache/windows/Python/3.11.9/x64/tcl/tcl8.6/init.tcl"
E           ("uplevel" body line 1)
E           invoked from within
E       "uplevel #0 [list source $tclfile]"
E       
E       
E       This probably means that Tcl wasn't installed properly.

Action version:
5.6.0

Platform:

  • Ubuntu
  • macOS
  • Windows

Runner type:

  • Hosted
  • Self-hosted

Tools version:

3.11

Repro steps:
Same repo status and

Expected behavior:
Always succeed

Actual behavior:
Not always succeed, have to re-run until succeed
@34j 34j added bug Something isn't working needs triage labels May 11, 2025
@aparnajyothi-y
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Hello @34j, Thank you for creating this issue and we will look into it :)

@priya-kinthali priya-kinthali self-assigned this May 13, 2025
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@34j @aparnajyothi-y @priya-kinthali
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