[MacPorts] #63782: python38 @3.8.12 has a problem when using venv: ModuleNotFoundError: No module named 'msvcrt'

[MacPorts]

#63782: python38 @3.8.12 has a problem when using venv: ModuleNotFoundError: No
module named 'msvcrt'
--------------------+--------------------
 Reporter:  casr    |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:
--------------------+--------------------
 I have built python38 with the +universal variant, however, when I use the
 arm64 version it fails to create a virtualenv directory and complains
 with:

 {{{
 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/subprocess.py",
 line 64, in <module>
     import msvcrt
 ModuleNotFoundError: No module named 'msvcrt'

 During handling of the above exception, another exception occurred:

 Traceback (most recent call last):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py",
 line 185, in _run_module_as_main
     mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py",
 line 144, in _get_module_details
     return _get_module_details(pkg_main_name, error)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py",
 line 111, in _get_module_details
     __import__(pkg_name)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/venv/__init__.py",
 line 10, in <module>
     import subprocess
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/subprocess.py",
 line 69, in <module>
     import _posixsubprocess
 ImportError: dynamic module does not define module export function
 (PyInit__posixsubprocess)
 }}}

 I am running macOS 12.0.1 21A559 arm64, Xcode 13.1 13A1030d.

 To reproduce:

 {{{
 # works
 ( cd $(mktemp -d) && arch -x86_64 python3.8 -m venv venv )

 # fails
 ( cd $(mktemp -d) && arch -arm64 python3.8 -m venv venv )

 # fails
 ( cd $(mktemp -d) && python3.8 -m venv venv )
 }}}

 Seems similar to the problem described in
 https://trac.macports.org/ticket/61282

-- 
Ticket URL: <https://trac.macports.org/ticket/63782>
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