initial commit

.gitignore

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+*.egg-info
+*.pyc
+/.coverage
+/.tox

.pre-commit-config.yaml

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+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: debug-statements
+    -   id: double-quote-string-fixer
+    -   id: name-tests-test
+    -   id: requirements-txt-fixer
+-   repo: https://github.com/asottile/setup-cfg-fmt
+    rev: v2.2.0
+    hooks:
+    -   id: setup-cfg-fmt
+-   repo: https://github.com/asottile/reorder_python_imports
+    rev: v3.9.0
+    hooks:
+    -   id: reorder-python-imports
+        args: [--py37-plus, --add-import, 'from __future__ import annotations']
+-   repo: https://github.com/asottile/add-trailing-comma
+    rev: v2.4.0
+    hooks:
+    -   id: add-trailing-comma
+        args: [--py36-plus]
+-   repo: https://github.com/asottile/pyupgrade
+    rev: v3.3.1
+    hooks:
+    -   id: pyupgrade
+        args: [--py37-plus]
+-   repo: https://github.com/pre-commit/mirrors-autopep8
+    rev: v2.0.1
+    hooks:
+    -   id: autopep8
+-   repo: https://github.com/PyCQA/flake8
+    rev: 6.0.0
+    hooks:
+    -   id: flake8
+-   repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v0.991
+    hooks:
+    -   id: mypy

LICENSE

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+Copyright (c) 2022 Anthony Sottile
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+[![Build Status](https://dev.azure.com/asottile/asottile/_apis/build/status/asottile.manylinux-max?branchName=main)](https://dev.azure.com/asottile/asottile/_build/latest?definitionId=75&branchName=main)
+[![Azure DevOps coverage](https://img.shields.io/azure-devops/coverage/asottile/asottile/75/main.svg)](https://dev.azure.com/asottile/asottile/_build/latest?definitionId=75&branchName=main)
+[![pre-commit.ci status](https://results.pre-commit.ci/badge/github/asottile/manylinux-max/main.svg)](https://results.pre-commit.ci/latest/github/asottile/manylinux-max/main)
+
+manylinux-max
+=============
+
+dynamically cap the version of manylinux when installing from pip
+
+## installation
+
+```bash
+pip install manylinux-max
+```
+
+## usage
+
+install this package before trying to install other packages.
+
+set the `MANYLINUX_MAX` environment variable to limit the candidate manylinux
+versions.
+
+this is useful (for example) when using `pip install --target` to build a zip
+for aws lambda (which has an old libc version -- and likely a different libc
+version than your host machine).
+
+```bash
+pip install manylinux-max
+MANYLINUX_MAX=2.26 pip install --target src -r requirements.txt
+```
+
+## example error that you may encounter from aws lambda
+
+```
+ImportError: /lib64/libc.so.6: version `GLIBC_2.28' not found (required by /var/task/cryptography/hazmat/bindings/_rust.abi3.so)
+```

_manylinux.py

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+from __future__ import annotations
+
+import os
+import re
+
+PATTERN = re.compile(r'^(\d+).(\d+)$', re.ASCII)
+
+
+def manylinux_compatible(major: int, minor: int, arch: str) -> bool:
+    var = os.environ.get('MANYLINUX_MAX')
+    if var is None:
+        return True
+
+    parsed = PATTERN.match(var)
+    if parsed is None:
+        raise ValueError(f'invalid MANYLINUX_MAX, expected `#.##` got `{var}`')
+    return (major, minor) <= (int(parsed[1]), int(parsed[2]))

azure-pipelines.yml

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+trigger:
+  branches:
+    include: [main, test-me-*]
+  tags:
+    include: ['*']
+
+resources:
+  repositories:
+    - repository: asottile
+      type: github
+      endpoint: github
+      name: asottile/azure-pipeline-templates
+      ref: refs/tags/v2.4.0
+
+jobs:
+- template: job--python-tox.yml@asottile
+  parameters:
+    toxenvs: [py37, py38, py39]
+    os: linux

requirements-dev.txt

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+covdefaults>=2.1
+coverage
+pytest

setup.cfg

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+[metadata]
+name = manylinux_max
+version = 0.0.0
+description = dynamically cap the version of manylinux when installing from pip
+long_description = file: README.md
+long_description_content_type = text/markdown
+url = https://github.com/asottile/manylinux-max
+author = Anthony Sottile
+author_email = [email protected]
+license = MIT
+license_file = LICENSE
+classifiers =
+    License :: OSI Approved :: MIT License
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+
+[options]
+py_modules = _manylinux
+python_requires = >=3.7
+
+[bdist_wheel]
+universal = True
+
+[coverage:run]
+plugins = covdefaults
+
+[mypy]
+check_untyped_defs = true
+disallow_any_generics = true
+disallow_incomplete_defs = true
+disallow_untyped_defs = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+
+[mypy-testing.*]
+disallow_untyped_defs = false
+
+[mypy-tests.*]
+disallow_untyped_defs = false

setup.py

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+from __future__ import annotations
+
+from setuptools import setup
+setup()

tests/manylinux_max_test.py

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+from __future__ import annotations
+
+import os
+from unittest import mock
+
+import pytest
+
+from _manylinux import manylinux_compatible
+
+
+def test_default_is_allow_all():
+    assert manylinux_compatible(2, 28, 'x86_64') is True
+
+
+def test_incompatible_based_on_environment_variable():
+    with mock.patch.dict(os.environ, {'MANYLINUX_MAX': '2.26'}):
+        assert manylinux_compatible(2, 28, 'x86_64') is False
+        assert manylinux_compatible(2, 26, 'x86_64') is True
+
+
+def test_environment_variable_is_garbage():
+    with mock.patch.dict(os.environ, {'MANYLINUX_MAX': 'garbage'}):
+        with pytest.raises(ValueError) as excinfo:
+            manylinux_compatible(2, 28, 'x86_64')
+
+    msg, = excinfo.value.args
+    assert msg == 'invalid MANYLINUX_MAX, expected `#.##` got `garbage`'

tox.ini

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+[tox]
+envlist = py37,py38,pypy3,pre-commit
+
+[testenv]
+deps = -rrequirements-dev.txt
+commands =
+    coverage erase
+    coverage run -m pytest {posargs:tests}
+    coverage report
+
+[testenv:pre-commit]
+skip_install = true
+deps = pre-commit
+commands = pre-commit run --all-files --show-diff-on-failure
+
+[pep8]
+ignore = E265,E501,W504