ModuleNotFoundError: No module named '_struct'

Hi

I've installed "Python 3.11.1.80716" and tested a script that works with the previous Python 3.9.10 release.

I get the following error:

Could not find platform dependent libraries <exec_prefix>
Traceback (most recent call last):
  File "/Users/xxxxx/ClearMDMCommands/./CoolKids.py", line 2, in <module>
    import requests
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/urllib3/__init__.py", line 11, in <module>
    from . import exceptions
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/urllib3/exceptions.py", line 3, in <module>
    from .packages.six.moves.http_client import IncompleteRead as httplib_IncompleteRead
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/urllib3/packages/six.py", line 693, in <module>
    import struct
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/struct.py", line 13, in <module>
    from _struct import *
ModuleNotFoundError: No module named '_struct'

I'll install the other pre-release versions and test with those.

Thanks
Ben
I’m #MadeByDyslexia – expect creative thinking & creative spelling.

Just tested the same script with:
python_recommended_signed-3.10.9.80716.pkg
python_recommended_signed-3.9.13.80712.pkg

And the script works with both of those versions.

Thanks for doing this testing. It looks like requests itself doesn't full support Python 3.11.x yet: https://github.com/psf/requests/releases/tag/v2.28.0

In the meantime, perhaps we should mark 3.11 as beta or otherwise indicate that not all libraries may support it.

I think labelling it beta would be good.

I don't think this has anything to do with requests per se, it's a general issue with 3.11 and relocatable-python:
gregneagle/relocatable-python#31

With gregneagle/relocatable-python#31 (comment), I was able to work around this with simple script:

#!/bin/zsh

bin="/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/bin/python3.11"

PYTHONHOME=/Library/ManagedFrameworks/Python.framework/Versions/3.11
PYTHONPATH=/Library/ManagedFrameworks/Python.framework/Versions/3.11/lib/python3.11/lib-dynload
exec "${bin}" "$@"

This script could replace the symlink for managed_python3, and solves the immediate issue:

% /usr/local/bin/managed_python3_fixed
Python 3.11.1 (v3.11.1:a7a450f84a, Dec  6 2022, 15:24:06) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>> exit()

Per the suggestion by Nick I have potentially applied his fix for both 3.11 and 3.12

https://github.com/macadmins/python/releases/tag/v3.11.7.80735
https://github.com/macadmins/python/releases/tag/v3.12.1.80735

need help testing.

@erikng

Hi @erikng
I've tested the releases with a script that uses the requests library.
Both python_recommended_signed-3.9.13.80735 and python_recommended_signed-3.10.11.80735 work as expected.

However both python_recommended_signed-3.11.7.80735 and python_recommended_signed-3.12.1.80735 error with the following errors:

Could not find platform dependent libraries <exec_prefix>
Traceback (most recent call last):
  File "/Users/breilly/GitLab/MacOps/devicemigration/./V2_DeviceMigration.py", line 3, in <module>
    import requests
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/urllib3/__init__.py", line 14, in <module>
    from . import exceptions
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/site-packages/urllib3/exceptions.py", line 3, in <module>
    import socket
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.11/lib/python3.11/socket.py", line 51, in <module>
    import _socket
ModuleNotFoundError: No module named '_socket'

Could not find platform dependent libraries <exec_prefix>
Traceback (most recent call last):
  File "/Users/breilly/GitLab/MacOps/devicemigration/./V2_DeviceMigration.py", line 3, in <module>
    import requests
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.12/lib/python3.12/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.12/lib/python3.12/site-packages/urllib3/__init__.py", line 14, in <module>
    from . import exceptions
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.12/lib/python3.12/site-packages/urllib3/exceptions.py", line 3, in <module>
    import socket
  File "/Library/ManagedFrameworks/Python/Python3.framework/Versions/3.12/lib/python3.12/socket.py", line 52, in <module>
    import _socket
ModuleNotFoundError: No module named '_socket'

Thanks for looking into this.

Ben
I’m #MadeByDyslexia – expect creative thinking & creative spelling.

What is your shebang? Or how are you invoking the script? Per Nick's comment it seemed to suggest that you would not be able to use the direct shebang path by the instead use the shim.

Okay I think my build script failed. I see the original symbolic link and I think it didn't get installed, but you already have it from the 3.9 and 3.10 tests. Will investigate today.

https://github.com/macadmins/python/releases/tag/v3.9.13.80737
https://github.com/macadmins/python/releases/tag/v3.10.11.80737
https://github.com/macadmins/python/releases/tag/v3.11.7.80737
https://github.com/macadmins/python/releases/tag/v3.12.1.80737

I've tested 3.12.1.80737 and I am able to import the requests library

→ managed_python3
Python 3.12.1 (v3.12.1:2305ca5144, Dec  7 2023, 17:23:39) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>> exit()

so interestingly, I can't get the error reported with requests when not using the shim

→ /Library/ManagedFrameworks/Python/Python3.framework/Versions/3.12/bin/python3.12
Python 3.12.1 (v3.12.1:2305ca5144, Dec  7 2023, 17:23:39) [Clang 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import requests
>>>

I read the other linked ticket again and now I understand why. so if you call it's full path it works, the shim is what doesn't work. I'm closing this as it's solved for now with the hack nick posted.

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ModuleNotFoundError: No module named '_struct' #48

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