PEP 738: Android support, draft 2

[mhsmith]

• Change is either:
  • To a Draft PEP
  • To an Accepted or Final PEP, with Steering Council approval
  • To fix an editorial issue (markup, typo, link, header, etc)
• PR title prefixed with PEP number (e.g. PEP 123: Summary of changes)

Updates following discussion on Discourse:

• Reduce minimum Android API level from 23 to 21.
• Add more device information fields to platform.android_ver.

Other changes:

• State that a python3.x executable will not be officially supported on this platform. For the reasons explained in "App lifecycle", this would be of very little use.
• Add another reason why libpython must be dynamically linked.
• Add details of stdin, stdout, and stderr.
• Remove spwd from unsupported modules list, since it's already been removed from Python 3.13.

@freakboy3742: FYI

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📚 Documentation preview 📚: https://pep-previews--3651.org.readthedocs.build/

[hugovk]

Looks good, a couple of comments about accessibility.

[freakboy3742]

A good set of improvements and clarifications; a couple of minor nits/questions inline.

The comments were resolved.