[MacPorts] #67684: py38-astropy at 5.3 fails to import

[MacPorts]

#67684: py38-astropy at 5.3 fails to import
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 Reporter:  odysseus9672  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:                |       Port:
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 I have py38-astropy at 5.3 installed and when I try to import the cosmology
 sub-package, it fails. Here's the code and output:

 {{{
 Seans-Work-Macbook-Pro:~ sean$ python3.8
 Python 3.8.17 (default, Jun 10 2023, 11:16:23)
 [Clang 14.0.3 (clang-1403.0.22.14.1)] on darwin
 Type "help", "copyright", "credits" or "license" for more information.
 >>> import astropy.cosmology as cosm
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/astropy/cosmology/__init__.py", line 11, in <module>
     from . import core, flrw, funcs, parameter, units, utils
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/astropy/cosmology/funcs/__init__.py", line 5, in <module>
     from .comparison import cosmology_equal
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/astropy/cosmology/funcs/comparison.py", line 29, in
 <module>
     _FormatsT = Union[_FormatType, tuple[_FormatType, ...]]
 TypeError: 'type' object is not subscriptable
 >>>
 }}}
 Judging by
 [https://github.com/astropy/astropy/commit/a1bc8b3fa819703eb0a1a38a03df115b85271a69
 this commit] to the affected file, astropy 5.3 drops support for python
 3.8. Using pip to force install [https://pypi.org/project/astropy/5.2.2/
 astropy version 5.2.2] in my user directory solves the problem. So
 py38-astropy should probably be pinned to version 5.2.2, unless this is an
 unintentional bug in astropy.

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Ticket URL: <https://trac.macports.org/ticket/67684>
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