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Implement PEP 639: support for Metadata-Version: 2.4; Part I #24

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whitequark merged 2 commits into from
Sep 29, 2024
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Implement PEP 639: support for Metadata-Version: 2.4; Part I #24

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4ff662d
Support metadata version 2.4
agriyakhetarpal Sep 29, 2024
0b39c09
Add `License-Expression:` and `License-File:` fields, more classifiers
agriyakhetarpal Sep 29, 2024
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67 changes: 40 additions & 27 deletions make_wheels.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ def writestr(self, zinfo_or_arcname, data, *args, **kwargs):

def make_message(headers, payload=None):
msg = EmailMessage()
for name, value in headers.items():
for name, value in headers:
if isinstance(value, list):
for value_part in value:
msg[name] = value_part
Expand All @@ -71,18 +71,18 @@ def write_wheel(out_dir, *, name, version, tag, metadata, description, contents)
dist_info = f'{name}-{version}.dist-info'
return write_wheel_file(os.path.join(out_dir, wheel_name), {
**contents,
f'{dist_info}/METADATA': make_message({
'Metadata-Version': '2.1',
'Name': name,
'Version': version,
**metadata,
}, description),
f'{dist_info}/WHEEL': make_message({
'Wheel-Version': '1.0',
'Generator': 'ziglang make_wheels.py',
'Root-Is-Purelib': 'false',
'Tag': tag,
}),
f'{dist_info}/METADATA': make_message([
('Metadata-Version', '2.4'),
('Name', name),
('Version', version),
*metadata,
], description),
f'{dist_info}/WHEEL': make_message([
('Wheel-Version', '1.0'),
('Generator', 'ziglang make_wheels.py'),
('Root-Is-Purelib', 'false'),
('Tag', tag),
]),
Comment on lines +74 to +85

@agriyakhetarpal agriyakhetarpal Sep 29, 2024

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This metadata version bump is backwards compatible. Please see https://peps.python.org/pep-0639/#backwards-compatibility for more. I tested recent versions of pip and uv, and they installed a wheel I generated for my M-series device without hiccups. I'll need to see if compliance with PyPI uploads is working, though, that's more important to figure out.

})


Expand Down Expand Up @@ -134,20 +134,33 @@ def write_ziglang_wheel(out_dir, *, version, platform, archive):
name='ziglang',
version=version,
tag=f'py3-none-{platform}',
metadata={
'Summary': 'Zig is a general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.',
'Description-Content-Type': 'text/markdown',
'License': 'MIT',
'Classifier': [
'License :: OSI Approved :: MIT License',
],
'Project-URL': [
'Homepage, https://ziglang.org',
'Source Code, https://github.com/ziglang/zig-pypi',
'Bug Tracker, https://github.com/ziglang/zig-pypi/issues',
],
'Requires-Python': '~=3.5',
},
metadata=[
('Summary', 'Zig is a general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.'),
('Description-Content-Type', "'text/markdown'; charset=UTF-8; variant=GFM"),
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('License-Expression', 'MIT'),
('License-File', 'LICENSE'),
('License-File', 'ziglang/lib/libc/glibc/LICENSES'),
('License-File', 'ziglang/lib/libc/mingw/COPYING'),
('License-File', 'ziglang/lib/libc/musl/COPYRIGHT'),
('License-File', 'ziglang/lib/libc/wasi/LICENSE'),
('License-File', 'ziglang/lib/libc/wasi/LICENSE-APACHE'),
('License-File', 'ziglang/lib/libc/wasi/LICENSE-APACHE-LLVM'),
('License-File', 'ziglang/lib/libc/wasi/LICENSE-MIT'),
('License-File', 'ziglang/lib/libcxx/LICENSE.TXT'),
('License-File', 'ziglang/lib/libcxxabi/LICENSE.TXT'),
('License-File', 'ziglang/lib/libunwind/LICENSE.TXT'),
('Classifier', 'Development Status :: 4 - Beta'),
('Classifier', 'Intended Audience :: Developers'),
('Classifier', 'Topic :: Software Development :: Compilers'),
('Classifier', 'Topic :: Software Development :: Code Generators'),
('Classifier', 'Topic :: Software Development :: Build Tools'),
('Classifier', 'Programming Language :: Other'),
('Classifier', 'Programming Language :: Other Scripting Engines'),
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('Project-URL', 'Homepage, https://ziglang.org'),
('Project-URL', 'Source Code, https://github.com/ziglang/zig-pypi'),
('Project-URL', 'Bug Tracker, https://github.com/ziglang/zig-pypi/issues'),
('Requires-Python', '~=3.5'),

@agriyakhetarpal agriyakhetarpal Sep 29, 2024

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https://endoflife.date/python states that security releases for Python 3.7 have ended. Now that 3.13 is just around the corner, maybe we should update to a minimum of 3.8 (either here or as a separate PR). Please let me know.

@whitequark whitequark Sep 29, 2024

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I'm aware of the EOL status of Python 3.5 (it was EOL when I wrote this package). I decided that this requirement should be bumped only if the package isn't installable/usable, since there isn't really a cost to keeping it low, and it could help someone using old Python versions.

@agriyakhetarpal agriyakhetarpal Sep 29, 2024

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Sure, makes sense!

@whitequark whitequark Sep 29, 2024

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If we do change the launcher in such a way it stops working on earlier Python versions, we should support the last non-EOL version, of course.

zig-pypi/make_wheels.py

Lines 122 to 127 in f1cd7a9

import os, sys
argv = [os.path.join(os.path.dirname(__file__), "{entry_name}"), *sys.argv[1:]]
if os.name == 'posix':
os.execv(argv[0], argv)
else:
import subprocess; sys.exit(subprocess.call(argv))

@agriyakhetarpal agriyakhetarpal Sep 29, 2024

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I can't access a Python version that old unless I use actions/setup-python in a CI setup – and I remember that your previous mention in our earlier conversations of one to not become a maintenance burden. So we could leave it until someone asks; I doubt anyone will, though, since those Pythons are really old 😄

],
description=description,
contents=contents,
)
Expand Down