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feat: add CPython 3.15 support for iOS (#2857)

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* feat: add CPython 3.15 support for iOS

Assisted-by: OpenCode:Kimi-K2.6
Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* fix: copy in iOS support files

Assisted-by: Copilot:claude-sonnet-4.6
Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* fix: skip directories when copying iOS support files

When copying multiarch-specific support files (e.g. _cross_arm64_iphoneos.py),
the code was trying to copy all items in the directory including __pycache__
directories. The shutil.copy() function only works with files, not directories,
which caused an IsADirectoryError.

This fix adds a check to only copy files, skipping any directories like
__pycache__ that may have been created by Python imports.

Assisted-by: Copilot:claude-haiku-4.5

* fix: - in dir fine for now

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* fix: apply review suggestions

Assisted-by: Copilot:claude-sonnet-4.6
Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* fix: only do this on 3.15+

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* Ensure target Python directory exists before build

Add assertion to check if target Python directory exists.

* fix(ios): use stdlib dir directly instead of copying to platform-config

Remove the _inject_support_files workaround for python.org 3.15+
distributions. Instead of copying sysconfig files from the stdlib into
a synthetic platform-config/ directory, pass the stdlib directory
directly to make_cross_venv.py.

make_cross_venv.py is updated to derive the multiarch tag from the
_sysconfigdata_ filename rather than assuming it comes from the
directory name.

Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
Assisted-by: OpenCode:Kimi-K2.6
Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* Minor format cleanups on pre-commit skipped files.

* Clarify path names in make_cross_venv script.

---------

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
This commit is contained in:
Henry Schreiner
2026-05-23 10:47:49 -04:00
committed by GitHub
co-authored by Russell Keith-Magee
parent a7b3f178c3
commit 45cfffd3ee
16 changed files with 638 additions and 25 deletions
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bin/update_pythons.py
+8 -1
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@@ -488,7 +488,14 @@ class AllVersions:
versions = self.maven if identifier.startswith("cp313") else self.cpython
config_update = versions.update_version_android(identifier, spec)
elif "ios" in identifier:
config_update = self.ios_cpython.update_version_ios(identifier, version)
# Python 3.13 and 3.14 are released by BeeWare on GitHub.
# Python 3.15 and newer have official releases on python.org.
if identifier.startswith(("cp313", "cp314")):
config_update = self.ios_cpython.update_version_ios(identifier, version)
else:
config_update = self.cpython.update_version(
identifier, spec, "iOS-XCframework.tar.gz"
)
elif "pyodide" in identifier:
config_update = self.pyodide.update_version_pyodide(
identifier, version, spec, config["node_version"]