update Python to 3.9.2

[obfusk]

My webview app seems to work fine w/ 3.9.0.

Since the 3.8.1 patches seem to work fine with 3.9.0 I decided not to rename/duplicate them (for now).

[inclement]

Thanks @obfusk, we'd better do some testing first but that sounds good.

[syleishere]

Approve this

[syleishere]

OK I got around to testing obfusk's patch, something still needs patching:
TEST SETUP AS FOLLOWS:

Python 3.8 buildozer test with obfusk's patches:
buildozer.spec: (relevant lines for testing helloworld from kivy site)

requirements = python3==3.8.6,hostpython3==3.8.6,kivy==2.0.0rc4,https://github.com/kivymd/KivyMD/archive/master.zip,pygments,sdl2_ttf==2.0.15
#obfusk's patches
p4a.source_dir = %(source.dir)s/../python-for-android

RESULTS from logcat on Pixel 4 XL: (PASS)
http://sunsaturn.com/kivy/3.8.txt

---

Python 3.9 buildozer test with obfusk's patches:
buildozer.spec: (relevant lines for testing helloworld from kivy site)

requirements = python3==3.9.0,hostpython3==3.9.0,kivy==2.0.0rc4,https://github.com/kivymd/KivyMD/archive/master.zip,pygments,sdl2_ttf==2.0.15
#obfusk's patches
p4a.source_dir = %(source.dir)s/../python-for-android

RESULTS from logcat on Pixel 4 XL: (FAIL)
http://sunsaturn.com/kivy/3.9.txt

Additional comments: only thing that affects it failing is (python3==3.9.0,hostpython3==3.9.0) after running numerous tests with different modules like kivymd or just setting python3==3.9.0,hostpython3==3.9.0,kivy==2.0.0rc4 only in requirements line.
As you can see from logs, kivy is not getting loaded for some reason

[obfusk]

@syleishere that is a bug in kivy.

Also: it would have been easier to diagnose that if you had also provided build logs 😄

[obfusk]

With the proposed kivy patch, a simple "hello world" p4a kivy app seems to work fine now.

[obfusk]

• fixed merge conflict after changes to develop
• updated Python to 3.9.1 (since that has been working fine for me)

[obfusk]

Updated to python 3.9.2 (which has been working fine for me, but AFAIK still requires master for kivy apps).

[obfusk]

If updating to 3.9 is still not desirable yet, may I suggest at least updating to 3.8.8 to get the latest (security) fixes?

I'd be happy to make a PR for that. I haven't tested it myself though, since I've been using 3.9.2.

[AndreMiras]

Yes please go ahead with the security fixes patch version

[obfusk]

Yes please go ahead with the security fixes patch version

See #2451.

[misl6]

Closing as #2586 introduced Python 3.9.9, which is newer than the version proposed in this PR.