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fix: faster CLI on Python 3.15 #2797

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fix: faster CLI on Python 3.15 #2797

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7ad5cce
chore: lazy imports
henryiii May 19, 2026
d5fe3a3
chore: bump flake8-lazy, rerun
henryiii May 29, 2026
4e17c38
chore: include android
henryiii May 29, 2026
c5faa2c
fix: after rebase
henryiii May 29, 2026
1f66980
chore: autofix __lazy_modules__
henryiii May 31, 2026
6d2e502
chore: avoid touching resources
henryiii Jun 1, 2026
cd79b86
chore: bump flake8-lazy to v0.8.2, rerun
henryiii Jun 10, 2026
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8 changes: 8 additions & 0 deletions .pre-commit-config.yaml
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Expand Up @@ -77,6 +77,14 @@ repos:
files: '^(README\.md|docs/changelog\.md|docs/options\.md|bin/readme.*)$'
additional_dependencies: [cogapp>=3.5]

- repo: https://github.com/henryiii/flake8-lazy
rev: 65b94e97b1091634368592d98072160842265fe4 # frozen: v0.8.2
hooks:
- id: flake8-lazy
args: ["--apply=set"]
files: '^cibuildwheel'
exclude: "^cibuildwheel/resources/"

- repo: https://github.com/codespell-project/codespell
rev: 2ccb47ff45ad361a21071a7eedda4c37e6ae8c5a # frozen: v2.4.2
hooks:
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25 changes: 25 additions & 0 deletions cibuildwheel/__main__.py
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@@ -1,5 +1,30 @@
from __future__ import annotations

__lazy_modules__ = {
"argparse",
"cibuildwheel._compat",
"cibuildwheel._compat.tarfile",
"cibuildwheel.architecture",
"cibuildwheel.ci",
"cibuildwheel.logger",
"cibuildwheel.options",
"cibuildwheel.platforms",
"cibuildwheel.selector",
"cibuildwheel.typing",
"cibuildwheel.util",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.resources",
"contextlib",
"functools",
"io",
"pathlib",
"shutil",
"tempfile",
"textwrap",
"traceback",
}

import argparse
import contextlib
import dataclasses
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2 changes: 2 additions & 0 deletions cibuildwheel/architecture.py
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@@ -1,5 +1,7 @@
from __future__ import annotations

__lazy_modules__ = {"platform", "re", "shutil", "subprocess"}

import platform as platform_module
import re
import shutil
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11 changes: 11 additions & 0 deletions cibuildwheel/audit.py
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@@ -1,5 +1,16 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.venv",
"pathlib",
"subprocess",
}

import subprocess
import sys
from pathlib import Path
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2 changes: 2 additions & 0 deletions cibuildwheel/bashlex_eval.py
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@@ -1,5 +1,7 @@
from __future__ import annotations

__lazy_modules__ = {"bashlex", "subprocess"}

import dataclasses
import subprocess

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2 changes: 2 additions & 0 deletions cibuildwheel/ci.py
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@@ -1,3 +1,5 @@
__lazy_modules__ = {"cibuildwheel.util", "cibuildwheel.util.helpers"}

import os
import re
from enum import Enum
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2 changes: 2 additions & 0 deletions cibuildwheel/environment.py
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@@ -1,5 +1,7 @@
from __future__ import annotations

__lazy_modules__ = {"bashlex", "bashlex.errors"}

import dataclasses
from typing import Protocol

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2 changes: 2 additions & 0 deletions cibuildwheel/errors.py
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Expand Up @@ -4,6 +4,8 @@
semantically clear and unique.
"""

__lazy_modules__ = {"textwrap"}

import textwrap


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2 changes: 2 additions & 0 deletions cibuildwheel/extra.py
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Expand Up @@ -4,6 +4,8 @@

from __future__ import annotations

__lazy_modules__ = {"io", "json", "urllib", "urllib.error", "urllib.request"}

import json
import time
import typing
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2 changes: 2 additions & 0 deletions cibuildwheel/frontend.py
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@@ -1,5 +1,7 @@
from __future__ import annotations

__lazy_modules__ = {"cibuildwheel.util", "cibuildwheel.util.helpers", "shlex"}

import dataclasses
import shlex
import typing
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12 changes: 12 additions & 0 deletions cibuildwheel/logger.py
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@@ -1,5 +1,17 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.ci",
"contextlib",
"functools",
"hashlib",
"humanize",
"io",
"pathlib",
"re",
"textwrap",
}

import codecs
import contextlib
import dataclasses
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18 changes: 18 additions & 0 deletions cibuildwheel/oci_container.py
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@@ -1,5 +1,23 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.ci",
"cibuildwheel.errors",
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.helpers",
"contextlib",
"io",
"json",
"platform",
"shlex",
"shutil",
"subprocess",
"textwrap",
"uuid",
}

import contextlib
import dataclasses
import io
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24 changes: 24 additions & 0 deletions cibuildwheel/options.py
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@@ -1,5 +1,29 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.architecture",
"cibuildwheel.environment",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.oci_container",
"cibuildwheel.projectfiles",
"cibuildwheel.selector",
"cibuildwheel.typing",
"cibuildwheel.util",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"collections",
"configparser",
"contextlib",
"difflib",
"packaging",
"packaging.specifiers",
"pathlib",
"shlex",
"textwrap",
"tomllib",
}

import collections
import configparser
import contextlib
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28 changes: 28 additions & 0 deletions cibuildwheel/platforms/android.py
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@@ -1,5 +1,33 @@
from __future__ import annotations

__lazy_modules__ = {
"build",
"build.env",
"cibuildwheel.architecture",
"cibuildwheel.audit",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.util.cmd",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.util.python_build_standalone",
"cibuildwheel.venv",
"filelock",
"packaging",
"packaging.utils",
"pathlib",
"platform",
"pprint",
"re",
"runpy",
"shlex",
"shutil",
"subprocess",
"textwrap",
"typing",
}

import os
import platform
import re
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23 changes: 23 additions & 0 deletions cibuildwheel/platforms/ios.py
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@@ -1,5 +1,28 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.audit",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.platforms.macos",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.venv",
"filelock",
"packaging",
"packaging.version",
"pathlib",
"platform",
"shlex",
"shutil",
"subprocess",
"textwrap",
"typing",
}

import dataclasses
import os
import platform
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17 changes: 17 additions & 0 deletions cibuildwheel/platforms/linux.py
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@@ -1,5 +1,22 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.audit",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"collections",
"contextlib",
"pathlib",
"shutil",
"subprocess",
"textwrap",
"typing",
}

import contextlib
import dataclasses
import shutil
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22 changes: 22 additions & 0 deletions cibuildwheel/platforms/macos.py
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@@ -1,5 +1,27 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.audit",
"cibuildwheel.ci",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.venv",
"filelock",
"inspect",
"packaging",
"packaging.version",
"pathlib",
"platform",
"re",
"shutil",
"subprocess",
}

import dataclasses
import functools
import inspect
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21 changes: 21 additions & 0 deletions cibuildwheel/platforms/pyodide.py
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@@ -1,5 +1,26 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.architecture",
"cibuildwheel.audit",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.util.python_build_standalone",
"cibuildwheel.venv",
"filelock",
"json",
"pathlib",
"shutil",
"subprocess",
"tempfile",
"tomllib",
}

import dataclasses
import functools
import json
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20 changes: 20 additions & 0 deletions cibuildwheel/platforms/windows.py
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@@ -1,5 +1,25 @@
from __future__ import annotations

__lazy_modules__ = {
"cibuildwheel.architecture",
"cibuildwheel.audit",
"cibuildwheel.frontend",
"cibuildwheel.logger",
"cibuildwheel.util",
"cibuildwheel.util.cmd",
"cibuildwheel.util.file",
"cibuildwheel.util.helpers",
"cibuildwheel.util.packaging",
"cibuildwheel.venv",
"filelock",
"pathlib",
"platform",
"shutil",
"subprocess",
"textwrap",
"typing",
}

import dataclasses
import os
import platform as platform_module
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2 changes: 2 additions & 0 deletions cibuildwheel/projectfiles.py
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from __future__ import annotations

__lazy_modules__ = {"configparser", "contextlib", "dependency_groups"}

import ast
import configparser
import contextlib
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2 changes: 2 additions & 0 deletions cibuildwheel/schema.py
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from __future__ import annotations

__lazy_modules__ = {"cibuildwheel.util", "json"}

import json

from cibuildwheel.util import resources
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2 changes: 2 additions & 0 deletions cibuildwheel/selector.py
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from __future__ import annotations

__lazy_modules__ = {"bracex", "fnmatch", "itertools", "packaging", "packaging.version"}

import dataclasses
import itertools
from enum import StrEnum
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2 changes: 2 additions & 0 deletions cibuildwheel/util/cmd.py
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from __future__ import annotations

__lazy_modules__ = {"cibuildwheel.errors", "shlex", "shutil", "subprocess"}

import os
import shlex
import shutil
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