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"py uninstall --purge" crashes with INTERNAL ERROR #288

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Description

@Lusiiky

Install source and version

  • Installed from the Windows Store
  • Installed with the MSIX from python.org
  • Installed with the MSI from python.org
  • Installed with winget install 9NQ7512CXL7T

Version: 26.0

Describe the bug
Running py uninstall --purge crashes with an internal error:

[ERROR] INTERNAL ERROR: TypeError: 'NoneType' object is not callable

The command starts normally and removes runtimes and cache directories, but fails during the final stage while purging shortcuts.

To Reproduce

  1. Install Python Install Manager (MSIX from python.org)
  2. Install at least one runtime with py install (tried with 3.10 and latest 3.14)
  3. Run:
    py uninstall --purge
    
  4. Confirm with Y or Enter
  5. Observe crash after "Purging all shortcuts"

Expected behavior
py uninstall --purge should complete successfully without throwing an internal exception.

Additional context

>> Writing logs to C:\Users\Lusiiky\AppData\Local\Temp\python_uninstall_20260322153836_7300.log
>> Python installation manager 26.0
Copyright (c) Python Software Foundation. All Rights Reserved.

BEGIN uninstall_command.execute: []
Reading installs from C:\Users\Lusiiky\AppData\Local\Python
Found 1 install
Calculating default install
Filtering installs by tag = 3
tag '3' matched 1 install
- 1 core install(s) by prefix
default_platform '-64' matched 1 install
Default install will be pythoncore-3.10-64
>  Purging Python 3.10.11 from C:\Users\Lusiiky\AppData\Local\Python\pythoncore-3.10-64
Atomically removing these files first: python.exe, python3.dll, python310.dll, pythonw.exe, vcruntime140.dll, vcruntime140_1.dll, __install__.json
Files successfully removed
>  Purging saved downloads from C:\Users\Lusiiky\AppData\Local\Python\_cache
Current PATH contains C:\Users\Lusiiky\AppData\Local\Microsoft\WindowsApps;D:\Users\Lusiiky\AppData\Local\Programs\Microsoft VS Code\bin;C:\Users\Lusiiky\AppData\Local\Muse Hub\lib;C:\Users\Lusiiky\.lmstudio\bin;C:\Users\Lusiiky\AppData\Local\JetBrains\Toolbox\scripts;%USERPROFILE%\AppData\Local\Microsoft\WindowsApps;C:\Users\Lusiiky\AppData\Local\Microsoft\WinGet\Packages\derrod.legendary_Microsoft.Winget.Source_8wekyb3d8bbwe;;C:\Users\Lusiiky\AppData\Local\Programs\ExifTool;C:\Users\Lusiiky\AppData\Roaming\npm;C:\Users\Lusiiky\AppData\Local\PowerToys\DSCModules\
>  Purging global commands from C:\Users\Lusiiky\AppData\Local\Python\bin
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip.exe.__script__.py
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.9.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.9.exe.__script__.py
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.9.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.exe.__script__.py
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pip3.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python3.10.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python3.10.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python3.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\python3.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw3.10.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw3.10.exe.__target__
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw3.exe
Purging C:\Users\Lusiiky\AppData\Local\Python\bin\pythonw3.exe.__target__
>  Purging all shortcuts
Cleaning up registry entries
Removing HKEY_CURRENT_USER\Software\Python\PythonCore\3.10
Cleaning up Start menu shortcuts
Removing C:\Users\Lusiiky\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python\Python 3.10\Python 3.10.lnk
Removing C:\Users\Lusiiky\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python\Python 3.10\Python 3.10 Online Documentation.lnk
Removing C:\Users\Lusiiky\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python\Python 3.10
Removing C:\Users\Lusiiky\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Python
Removing ARP registration for pymanager-pythoncore-3.10-64
!! INTERNAL ERROR: TypeError: 'NoneType' object is not callable
TRACEBACK:
Traceback (most recent call last):
  File "manage\__init__.py", line 50, in main
  File "manage\commands.py", line 900, in execute
  File "manage\uninstall_command.py", line 109, in execute
TypeError: 'NoneType' object is not callable

Activity

  1. self-assigned this
    on Mar 23, 2026
  2. zooba commented on Mar 23, 2026

    @zooba
    Member

    Great, thanks for the complete report. I'll get a fix in for this immediately.

  3. added a commit that references this issue on Mar 23, 2026
    a763c3e
  4. added
    bugSomething isn't working
    release-blockerDo not release without fixing this issue!
    on Mar 23, 2026
  5. Lusiiky commented on Mar 23, 2026

    @Lusiiky
    Author

    Great, thanks for the complete report. I'll get a fix in for this immediately.

    Thank you for the fix!
    What was the problem, if I can ask?

  6. zooba commented on Mar 23, 2026

    @zooba
    Member

    The main problem was no test coverage for the line of code mentioned in your error report, so when I made a change before the last release that needed it to be updated, it was missed. Most of the fix is adding that test coverage, so that future changes are caught before we release.

  7. added a commit that references this issue on Mar 26, 2026
    452d527
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