1843209 - Bump Mach's minimum required Python version to 3.8

Status: RESOLVED FIXED

(Firefox Build System :: Mach Core, enhancement, P2)

Description

[Alex Hochheiden [:ahochheiden] (needinfo? me)]

Our current Python version (3.7) is past end-of-life as of June 27 this year. As such, we should bump our minimum version to Python 3.8.

The new features are a nice bonus, too.

Comment 1

[Alex Hochheiden [:ahochheiden] (needinfo? me)]

Attachment: Bug 1843209 - Bump Mach's minimum Python version to `3.8` r?#build

Comment 2

[Mike Hommey [:glandium]]

Our current Python version (3.7) is past end-of-life as of June 27 this year. As such (...)

As such, and because the only major downstream Linux distros left on 3.7 are Ubuntu 18.04 and Debian 10 (and they do support it, python.org EOL is merely one indicator). Ubuntu 18.04 doesn't receive new updates for Firefox, and by the time of the next ESR, Debian 10 will be EOL. So, yes, we can upgrade to 3.8. Then we may have to stick to 3.8 until April 2025, when Ubuntu 20.04 EOLs.

Comment 3

[Alex Hochheiden [:ahochheiden] (needinfo? me)]

Attachment: Bug 1843209 - Regenerate the `third_party/python` lockfile with Python `3.8` as the minimum version r?#build

• If this is not done, the next person to vendor will also make all of
  the changes in this commit, which is unnecessary noise.

Comment 4

[James Graham [:jgraham]]

Note that not having 3.8+ means upstream wpt is currently unable to update aioquic: https://github.com/web-platform-tests/wpt/issues/43143

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/36c5e6c2819f
Bump Mach's minimum Python version to `3.8` r=firefox-build-system-reviewers,glandium
https://hg.mozilla.org/integration/autoland/rev/052214d67a99
Regenerate the `third_party/python` lockfile with Python `3.8` as the minimum version r=firefox-build-system-reviewers,glandium,mach-reviewers,ahal

Comment 6

[Cosmin Sabou [:CosminS]]

Backed out for python3 related browser accessible failures.

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&selectedTaskRun=Ve53Z0KJSVCEzliGihx0Dg.0&resultStatus=testfailed%2Cbusted%2Cexception%2Cusercancel&revision=052214d67a99b0f5385b5fc72c2f0583cc026cbc

Failure log: https://treeherder.mozilla.org/logviewer?job_id=437364468&repo=autoland

Backout link: https://hg.mozilla.org/integration/autoland/rev/faa25023486ce8a26ec7b4ab7d3362836442c042

Comment 7

[Mike Hommey [:glandium]]

Bad timing with bug 1862534, which landed not long ago, and added an awful hack that breaks with python 3.8...

Comment 8

[Alex Hochheiden [:ahochheiden] (needinfo? me)]

Attachment: WIP: Bug 1843209 - Build pyatspi-2.46.0 package for ubuntu1804

Depends on D194453

Comment 9

[Alex Hochheiden [:ahochheiden] (needinfo? me)]

Attachment: Bug 1843209 - Fix pygobject for python 3.8. r?#build

Depends on D183449

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/7696510881b0
Bump Mach's minimum Python version to `3.8` r=firefox-build-system-reviewers,glandium
https://hg.mozilla.org/integration/autoland/rev/c113ffb12ef6
Fix pygobject for python 3.8. r=firefox-build-system-reviewers,ahochheiden
https://hg.mozilla.org/integration/autoland/rev/55cd203304b8
Regenerate the `third_party/python` lockfile with Python `3.8` as the minimum version r=firefox-build-system-reviewers,glandium,mach-reviewers,ahal

Comment 11

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/7696510881b0
https://hg.mozilla.org/mozilla-central/rev/c113ffb12ef6
https://hg.mozilla.org/mozilla-central/rev/55cd203304b8