Merge pull request #212 from nsoranzo/flake8

Fix all PEP-008 issues

.circleci/config.yml

@@ -1,6 +1,19 @@
 version: 2
 
 jobs:
+  flake8:
+    docker:
+      - image: circleci/python:3.6
+    steps:
+      - checkout
+
+      - run:
+          name: Install flake8
+          command: sudo python -m pip install flake8
+      - run:
+          name: Test.
+          command: flake8 --exclude=.git,.venv,site .
+
   osx-python3.6:
     macos:
       xcode: "9.4.1"
@@ -51,6 +64,7 @@ workflows:
   version: 2
   all-tests:
     jobs:
+      - flake8
       - osx-python3.6
       - osx-python3.7
       - linux-python3.6

bin/run_test.py

@@ -1,6 +1,9 @@
 #!/usr/bin/env python3
 
-import os, sys, subprocess, shutil
+import argparse
+import os
+import subprocess
+import sys
 
 
 def single_run(test_project):
@@ -11,8 +14,6 @@ def single_run(test_project):
 
 
 if __name__ == '__main__':
-    import argparse
-
     parser = argparse.ArgumentParser()
     parser.add_argument("test_project_dir")
     args = parser.parse_args()

bin/run_tests.py

@@ -1,17 +1,19 @@
 #!/usr/bin/env python3
 
-import os, sys, subprocess, shutil, json
+import os
+import subprocess
+import sys
 from glob import glob
 
 if __name__ == '__main__':
     # move cwd to the project root
     os.chdir(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-    ### run the unit tests
+    # run the unit tests
 
     subprocess.check_call([sys.executable, '-m', 'pytest', 'unit_test'])
 
-    ### run the integration tests
+    # run the integration tests
 
     test_projects = sorted(glob('test/??_*'))
 

cibuildwheel/__main__.py

@@ -1,9 +1,22 @@
-import argparse, os, subprocess, sys, textwrap
+import argparse
+import os
+import sys
+import textwrap
+import traceback
 
 import cibuildwheel
-import cibuildwheel.linux, cibuildwheel.windows, cibuildwheel.macos
-from cibuildwheel.environment import parse_environment, EnvironmentParseError
-from cibuildwheel.util import BuildSelector, Unbuffered
+import cibuildwheel.linux
+import cibuildwheel.macos
+import cibuildwheel.windows
+from cibuildwheel.environment import (
+    EnvironmentParseError,
+    parse_environment,
+)
+from cibuildwheel.util import (
+    BuildSelector,
+    Unbuffered
+)
+
 
 def get_option_from_environment(option_name, platform=None, default=None):
     '''
@@ -84,7 +97,6 @@ def main():
                   file=sys.stderr)
             exit(2)
 
-
     output_dir = args.output_dir
     test_command = get_option_from_environment('CIBW_TEST_COMMAND', platform=platform)
     test_requires = get_option_from_environment('CIBW_TEST_REQUIRES', platform=platform, default='').split()
@@ -112,9 +124,8 @@ def main():
 
     try:
         environment = parse_environment(environment_config)
-    except (EnvironmentParseError, ValueError) as e:
+    except (EnvironmentParseError, ValueError):
         print('cibuildwheel: Malformed environment option "%s"' % environment_config, file=sys.stderr)
-        import traceback
         traceback.print_exc(None, sys.stderr)
         exit(2)
 
@@ -210,6 +221,7 @@ def detect_obsolete_options():
                 ))
                 os.environ[option] = os.environ[option].replace(deprecated, alternative)
 
+
 def print_preamble(platform, build_options):
     print(textwrap.dedent('''
              _ _       _ _   _       _           _
@@ -220,7 +232,6 @@ def print_preamble(platform, build_options):
 
     print('cibuildwheel version %s\n' % cibuildwheel.__version__)
 
-
     print('Build options:')
     print('  platform: %r' % platform)
     for option, value in sorted(build_options.items()):

cibuildwheel/bashlex_eval.py

@@ -1,9 +1,12 @@
-import subprocess, shlex, sys
+import shlex
+import subprocess
 from collections import namedtuple
+
 import bashlex
 
 NodeExecutionContext = namedtuple('NodeExecutionContext', ['environment', 'input'])
 
+
 def evaluate(value, environment):
     if not value:
         # empty string evaluates to empty string
@@ -16,9 +19,9 @@ def evaluate(value, environment):
         raise ValueError('"%s" has too many parts' % value)
 
     value_word_node = command_node.parts[0]
-    
+
     return evaluate_node(
-        value_word_node, 
+        value_word_node,
         context=NodeExecutionContext(environment=environment, input=value)
     )
 

cibuildwheel/environment.py

@@ -1,4 +1,5 @@
 import bashlex
+
 from . import bashlex_eval
 
 

cibuildwheel/linux.py

@@ -1,6 +1,15 @@
-import os, shlex, subprocess, sys, textwrap, uuid
+import os
+import shlex
+import subprocess
+import sys
+import textwrap
+import uuid
 from collections import namedtuple
-from .util import prepare_command, get_build_verbosity_extra_flags
+
+from .util import (
+    get_build_verbosity_extra_flags,
+    prepare_command,
+)
 
 
 def get_python_configurations(build_selector):
@@ -27,7 +36,7 @@ def get_python_configurations(build_selector):
 def build(project_dir, output_dir, test_command, test_requires, test_extras, before_build, build_verbosity, build_selector, repair_command, environment, manylinux_images):
     try:
         subprocess.check_call(['docker', '--version'])
-    except:
+    except Exception:
         print('cibuildwheel: Docker not found. Docker is required to run Linux builds. '
               'If you\'re building on Travis CI, add `services: [docker]` to your .travis.yml.'
               'If you\'re building on Circle CI in Linux, add a `setup_remote_docker` step to your .circleci/config.yml',
@@ -123,7 +132,7 @@ def build(project_dir, output_dir, test_command, test_requires, test_extras, bef
                 for repaired_wheel in "${{repaired_wheels[@]}}"; do chown {uid}:{gid} "/output/$(basename "$repaired_wheel")"; done
             done
         '''.format(
-            pybin_paths=' '.join(c.path+'/bin' for c in platform_configs),
+            pybin_paths=' '.join(c.path + '/bin' for c in platform_configs),
             test_requires=' '.join(test_requires),
             test_extras=test_extras,
             test_command=shlex.quote(
@@ -147,9 +156,8 @@ def build(project_dir, output_dir, test_command, test_requires, test_extras, bef
                             '--env', 'CIBUILDWHEEL',
                             '--name', container_name,
                             '-i',
-                            '-v', '/:/host', # ignored on CircleCI
-                            docker_image, '/bin/bash'],
-                            check=True)
+                            '-v', '/:/host',  # ignored on CircleCI
+                            docker_image, '/bin/bash'], check=True)
             subprocess.run(['docker', 'cp', os.path.abspath(project_dir) + '/.', container_name + ':/project'], check=True)
             subprocess.run(['docker', 'start', '-i', '-a', container_name], input=bash_script, universal_newlines=True, check=True)
             subprocess.run(['docker', 'cp', container_name + ':/output/.', os.path.abspath(output_dir)], check=True)
@@ -184,5 +192,5 @@ def troubleshoot(project_dir, error):
             '''))
 
             print('  Files detected:')
-            print('\n'.join(['    '+f for f in so_files]))
+            print('\n'.join(['    ' + f for f in so_files]))
             print('')

cibuildwheel/macos.py

@@ -1,9 +1,16 @@
+import os
+import shlex
+import shutil
+import subprocess
 import tempfile
-import os, subprocess, shlex, sys, shutil
 from collections import namedtuple
 from glob import glob
 
-from .util import prepare_command, get_build_verbosity_extra_flags, download
+from .util import (
+    download,
+    get_build_verbosity_extra_flags,
+    prepare_command,
+)
 
 
 def get_python_configurations(build_selector):
@@ -31,7 +38,7 @@ def build(project_dir, output_dir, test_command, test_requires, test_extras, bef
     get_pip_url = 'https://bootstrap.pypa.io/get-pip.py'
     get_pip_script = '/tmp/get-pip.py'
 
-    pkgs_output = subprocess.check_output(['pkgutil',  '--pkgs'], universal_newlines=True)
+    pkgs_output = subprocess.check_output(['pkgutil', '--pkgs'], universal_newlines=True)
     installed_system_packages = pkgs_output.splitlines()
 
     def call(args, env=None, cwd=None, shell=False):

cibuildwheel/util.py

@@ -1,6 +1,6 @@
+import os
+import urllib.request
 from fnmatch import fnmatch
-import warnings
-import os, urllib.request
 from time import sleep
 
 
@@ -64,7 +64,7 @@ def download(url, dest):
     for i in range(repeat_num):
         try:
             response = urllib.request.urlopen(url)
-        except:
+        except Exception:
             if i == repeat_num - 1:
                 raise
             sleep(3)

cibuildwheel/windows.py

@@ -1,8 +1,15 @@
-import os, tempfile, subprocess, shutil, sys
+import os
+import shutil
+import subprocess
+import tempfile
 from collections import namedtuple
 from glob import glob
 
-from .util import prepare_command, get_build_verbosity_extra_flags, download
+from .util import (
+    download,
+    get_build_verbosity_extra_flags,
+    prepare_command,
+)
 
 
 IS_RUNNING_ON_AZURE = os.path.exists('C:\\hostedtoolcache')
@@ -20,6 +27,7 @@ def get_nuget_args(configuration):
         python_name = python_name + "x86"
     return [python_name, "-Version", configuration.version, "-OutputDirectory", "C:/cibw/python"]
 
+
 def get_python_configurations(build_selector):
     PythonConfiguration = namedtuple('PythonConfiguration', ['version', 'arch', 'identifier'])
     python_configurations = [
@@ -40,7 +48,7 @@ def get_python_configurations(build_selector):
         # try with (and similar): msiexec /i VCForPython27.msi ALLUSERS=1 ACCEPT=YES /passive
         python_configurations = [c for c in python_configurations if not c.version.startswith('2.7.')]
 
-     # skip builds as required
+    # skip builds as required
     python_configurations = [c for c in python_configurations if build_selector(c.identifier)]
 
     return python_configurations

docs/mkdocs_include_markdown_plugin/mkdocs_include_markdown_plugin/plugin.py

@@ -1,4 +1,9 @@
-import mkdocs, re, os, io, cgi
+import cgi
+import io
+import os
+import re
+
+import mkdocs
 
 INCLUDE_TAG_REGEX = re.compile(
     r'''
@@ -28,6 +33,7 @@ INCLUDEMARKDOWN_TAG_REGEX = re.compile(
     flags=re.VERBOSE,
 )
 
+
 class ImportMarkdownPlugin(mkdocs.plugins.BasePlugin):
     def on_page_markdown(self, markdown, page, **kwargs):
         page_src_path = page.file.abs_src_path
@@ -49,7 +55,6 @@ class ImportMarkdownPlugin(mkdocs.plugins.BasePlugin):
 
             return text_to_include
 
-
         def found_includemarkdown_tag(match):
             filename = match.group('filename')
             start = match.group('start')
@@ -62,13 +67,13 @@ class ImportMarkdownPlugin(mkdocs.plugins.BasePlugin):
 
             with io.open(file_path_abs, encoding='utf8') as f:
                 text_to_include = f.read()
-            
+
             if start:
                 _, _, text_to_include = text_to_include.partition(start)
 
             if end:
                 text_to_include, _, _ = text_to_include.partition(end)
-            
+
             return (
                 '<!-- BEGIN INCLUDE %s %s %s -->\n' % (
                     filename, cgi.escape(start or ''), cgi.escape(end or '')
@@ -80,4 +85,3 @@ class ImportMarkdownPlugin(mkdocs.plugins.BasePlugin):
         markdown = re.sub(INCLUDE_TAG_REGEX, found_include_tag, markdown)
         markdown = re.sub(INCLUDEMARKDOWN_TAG_REGEX, found_includemarkdown_tag, markdown)
         return markdown
-    

setup.cfg

@@ -19,3 +19,6 @@ replace = cibuildwheel=={new_version}
 [bdist_wheel]
 universal = 1
 
+[flake8]
+ignore = E501,W503
+application-import-names = cibuildwheel

setup.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
-import os, io
+import io
+import os
 
 try:
     from setuptools import setup
@@ -20,7 +21,7 @@ setup(
     author="Joe Rickerby",
     author_email='joerick@mac.com',
     url='https://github.com/joerick/cibuildwheel',
-    packages=['cibuildwheel',],
+    packages=['cibuildwheel', ],
     license="BSD",
     zip_safe=False,
     package_data={

test/01_basic/cibuildwheel_test.py

@@ -1,9 +1,10 @@
 import os
+
 import utils
 
-
 project_dir = os.path.dirname(__file__)
 
+
 def test():
     # build the wheels
     actual_wheels = utils.cibuildwheel_run(project_dir)
@@ -20,6 +21,6 @@ def test_build_identifiers():
     # can be multiple wheels for each wheel, though, so we need to limit
     # the expected wheels
     expected_wheels = [w for w in utils.expected_wheels('spam', '0.1.0')
-                       if not '-manylinux' in w or '-manylinux1' in w]
+                       if '-manylinux' not in w or '-manylinux1' in w]
     build_identifiers = utils.cibuildwheel_get_build_identifiers(project_dir)
     assert len(expected_wheels) == len(build_identifiers)

test/01_basic/setup.py

@@ -1,6 +1,9 @@
 import os
 
-from setuptools import setup, Extension
+from setuptools import (
+    Extension,
+    setup,
+)
 
 if os.environ.get('CIBUILDWHEEL', '0') != '1':
     raise Exception('CIBUILDWHEEL environment variable is not set to 1')

test/02_test/cibuildwheel_test.py

@@ -1,7 +1,11 @@
-import os, subprocess
+import os
+import subprocess
+
 import pytest
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
 

test/02_test/setup.py

@@ -1,4 +1,7 @@
-from setuptools import setup, Extension
+from setuptools import (
+    Extension,
+    setup,
+)
 
 setup(
     name="spam",

test/02_test/test/spam_test.py

@@ -1,4 +1,5 @@
 from unittest import TestCase
+
 import spam
 
 

test/03_before_build/cibuildwheel_test.py

@@ -1,6 +1,8 @@
 import os
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
 

test/03_before_build/setup.py

@@ -1,5 +1,10 @@
-from setuptools import setup, Extension
-import sys, os
+import os
+import sys
+
+from setuptools import (
+    Extension,
+    setup,
+)
 
 # assert that the Python version as written to pythonversion.txt in the CIBW_BEFORE_BUILD step
 # is the same one as is currently running.

test/04_build_skip/cibuildwheel_test.py

@@ -1,6 +1,8 @@
 import os
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
 

test/04_build_skip/setup.py

@@ -1,6 +1,10 @@
-from setuptools import setup, Extension
 import sys
 
+from setuptools import (
+    Extension,
+    setup,
+)
+
 # explode if run on Python 2.7 or Python 3.4 (these should be skipped)
 if sys.version_info[0:2] == (2, 7):
     raise Exception('Python 2.7 should not be built')

test/05_environment/cibuildwheel_test.py

@@ -1,6 +1,8 @@
 import os
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
 

test/05_environment/setup.py

@@ -1,5 +1,9 @@
-from setuptools import setup, Extension
-import sys, os
+import os
+
+from setuptools import (
+    Extension,
+    setup,
+)
 
 # explode if environment isn't correct, as set in CIBW_ENVIRONMENT
 CIBW_TEST_VAR = os.environ.get('CIBW_TEST_VAR')
@@ -15,7 +19,6 @@ if '/opt/cibw_test_path' not in PATH:
 if '$PATH' in PATH:
     raise Exception('$PATH should be expanded in PATH. It was "%s"' % PATH)
 
-
 setup(
     name="spam",
     ext_modules=[Extension('spam', sources=['spam.c'])],

test/06_docker_images/cibuildwheel_test.py

@@ -1,6 +1,10 @@
-import os, pytest
+import os
+
+import pytest
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
 

test/06_docker_images/setup.py

@@ -1,6 +1,10 @@
-import os, sys
+import os
+import sys
 
-from setuptools import setup, Extension
+from setuptools import (
+    Extension,
+    setup,
+)
 
 # check that we're running in the correct docker image as specified in the
 # environment options CIBW_MANYLINUX1_*_IMAGE

test/07_ssl/cibuildwheel_test.py

@@ -1,6 +1,8 @@
 import os
+
 import utils
 
+
 def test():
     project_dir = os.path.dirname(__file__)
     # this test checks that SSL is working in the build environment using

test/07_ssl/setup.py

@@ -1,6 +1,10 @@
 import ssl
 import sys
-from setuptools import setup, Extension
+
+from setuptools import (
+    Extension,
+    setup,
+)
 
 if sys.version_info[0] == 2:
     from urllib2 import urlopen

test/08_manylinuxXXXX_only/cibuildwheel_test.py

@@ -1,4 +1,7 @@
-import os, pytest
+import os
+
+import pytest
+
 import utils
 
 

test/08_manylinuxXXXX_only/setup.py

@@ -1,4 +1,7 @@
-from setuptools import setup, Extension
+from setuptools import (
+    Extension,
+    setup,
+)
 
 setup(
     name="spam",

test/09_setup_cfg/cibuildwheel_test.py

@@ -1,9 +1,10 @@
 import os
+
 import utils
 
-
 project_dir = os.path.dirname(__file__)
 
+
 def test():
     # build the wheels
     actual_wheels = utils.cibuildwheel_run(project_dir)

test/09_setup_cfg/setup.py

@@ -1,7 +1,7 @@
-import os
-
-from setuptools import setup, Extension
-
+from setuptools import (
+    Extension,
+    setup,
+)
 
 setup(
     ext_modules=[Extension('spam.spam', sources=['spam/spam.c'])],

test/09_setup_cfg/spam/__init__.py

@@ -1 +1 @@
-__version__ = "0.1.0"
+__version__ = "0.1.0"

test/10_cpp_standards/cibuildwheel_test.py

@@ -1,13 +1,12 @@
 import os
-import sys 
 
 import pytest
 
 import utils
 
-
 project_dir = os.path.dirname(__file__)
 
+
 def test_cpp11(tmp_path):
     # This test checks that the C++11 standard is supported
 
@@ -18,8 +17,8 @@ def test_cpp11(tmp_path):
 
     actual_wheels = utils.cibuildwheel_run(project_dir, add_env=add_env)
     expected_wheels = [x for x in utils.expected_wheels(
-                            'spam', '0.1.0', macosx_deployment_target='10.9')
-                       if 'cp27-cp27m-win' not in x]
+        'spam', '0.1.0', macosx_deployment_target='10.9')
+        if 'cp27-cp27m-win' not in x]
     assert set(actual_wheels) == set(expected_wheels)
 
 
@@ -35,15 +34,15 @@ def test_cpp14():
 
     actual_wheels = utils.cibuildwheel_run(project_dir, add_env=add_env)
     expected_wheels = [x for x in utils.expected_wheels(
-                            'spam', '0.1.0', macosx_deployment_target='10.9')
-                       if 'cp27-cp27m-win' not in x and 'cp35-cp35m-win' not in x]
+        'spam', '0.1.0', macosx_deployment_target='10.9')
+        if 'cp27-cp27m-win' not in x and 'cp35-cp35m-win' not in x]
     assert set(actual_wheels) == set(expected_wheels)
 
 
 def test_cpp17():
     # This test checks that the C++17 standard is supported
 
-    # Python 2.7 uses the `register` keyword which is forbidden in the C++17 standard 
+    # Python 2.7 uses the `register` keyword which is forbidden in the C++17 standard
     # The manylinux1 docker image does not have a compiler which supports C++11
     # Python 3.4 and 3.5 are compiled with MSVC 10, which does not support C++17
     if os.environ.get('APPVEYOR_BUILD_WORKER_IMAGE', '') == 'Visual Studio 2015':
@@ -55,6 +54,6 @@ def test_cpp17():
 
     actual_wheels = utils.cibuildwheel_run(project_dir, add_env=add_env)
     expected_wheels = [x for x in utils.expected_wheels(
-                            'spam', '0.1.0', macosx_deployment_target='10.13')
-                       if 'cp27-cp27m-win' not in x and 'cp35-cp35m-win' not in x]
+        'spam', '0.1.0', macosx_deployment_target='10.13')
+        if 'cp27-cp27m-win' not in x and 'cp35-cp35m-win' not in x]
     assert set(actual_wheels) == set(expected_wheels)

test/10_cpp_standards/setup.py

@@ -1,7 +1,11 @@
-import os, sys
-from setuptools import setup, Extension
+import os
 import platform
 
+from setuptools import (
+    Extension,
+    setup,
+)
+
 standard = os.environ["STANDARD"]
 
 language_standard = "/std:c++" + standard if platform.system() == "Windows" else "-std=c++" + standard

test/shared/utils.py

@@ -4,10 +4,12 @@ Utility functions used by the cibuildwheel tests.
 This file is added to the PYTHONPATH in the test runner at bin/run_test.py.
 '''
 
-import subprocess, sys, os, shutil
-from tempfile import mkdtemp
+import os
+import shutil
+import subprocess
+import sys
 from contextlib import contextmanager
-
+from tempfile import mkdtemp
 
 IS_WINDOWS_RUNNING_ON_AZURE = os.path.exists('C:\\hostedtoolcache')
 IS_WINDOWS_RUNNING_ON_TRAVIS = os.environ.get('TRAVIS_OS_NAME') == 'windows'

unit_test/environment_test.py

@@ -1,4 +1,5 @@
 import os
+
 from cibuildwheel.environment import parse_environment
 
 
@@ -13,6 +14,7 @@ def test_basic_parsing():
     assert environment_dict == {'VAR': '1', 'VBR': '2'}
     assert environment_cmds == ['export VAR=1', 'export VBR=2']
 
+
 def test_quotes():
     environment_recipe = parse_environment('A=1 VAR="1 NOT_A_VAR=2" VBR=\'vbr\'')
 
@@ -24,6 +26,7 @@ def test_quotes():
     assert environment_dict == {'A': '1', 'VAR': '1 NOT_A_VAR=2', 'VBR': 'vbr'}
     assert environment_cmds == ['export A=1', 'export VAR="1 NOT_A_VAR=2"', 'export VBR=\'vbr\'']
 
+
 def test_inheritance():
     environment_recipe = parse_environment('PATH=$PATH:/usr/local/bin')
 
@@ -35,6 +38,7 @@ def test_inheritance():
     assert environment_dict == {'PATH': '/usr/bin:/usr/local/bin'}
     assert environment_cmds == ['export PATH=$PATH:/usr/local/bin']
 
+
 def test_shell_eval():
     environment_recipe = parse_environment('VAR="$(echo "a test" string)"')
 
@@ -49,6 +53,7 @@ def test_shell_eval():
     assert environment_dict['VAR'] == 'a test string'
     assert environment_cmds == ['export VAR="$(echo "a test" string)"']
 
+
 def test_shell_eval_and_env():
     environment_recipe = parse_environment('VAR="$(echo "$PREV_VAR" string)"')
 
@@ -60,6 +65,7 @@ def test_shell_eval_and_env():
     assert environment_dict == {'PREV_VAR': '1 2 3', 'VAR': '1 2 3 string'}
     assert environment_cmds == ['export VAR="$(echo "$PREV_VAR" string)"']
 
+
 def test_empty_var():
     environment_recipe = parse_environment('CFLAGS=')
 
@@ -71,6 +77,7 @@ def test_empty_var():
     assert environment_dict == {'CFLAGS': ''}
     assert environment_cmds == ['export CFLAGS=']
 
+
 def test_no_vars():
     environment_recipe = parse_environment('')
 
@@ -80,6 +87,7 @@ def test_no_vars():
     assert environment_dict == {}
     assert environment_cmds == []
 
+
 def test_no_vars_pass_through():
     environment_recipe = parse_environment('')
 

unit_test/main_tests/conftest.py

@@ -1,10 +1,15 @@
-import pytest
-
-import sys
 import os
 import subprocess
+import sys
 
-from cibuildwheel import linux, macos, windows, util
+import pytest
+
+from cibuildwheel import (
+    linux,
+    macos,
+    util,
+    windows,
+)
 
 
 class ArgsInterceptor:
@@ -15,6 +20,7 @@ class ArgsInterceptor:
 
 MOCK_PROJECT_DIR = 'some_project_dir'
 
+
 @pytest.fixture(autouse=True)
 def mock_protection(monkeypatch):
     '''
@@ -31,13 +37,14 @@ def mock_protection(monkeypatch):
     monkeypatch.setattr(linux, 'build', fail_on_call)
     monkeypatch.setattr(macos, 'build', fail_on_call)
 
+
 @pytest.fixture(autouse=True)
 def fake_project_dir(monkeypatch):
     '''
     Monkey-patch enough for the main() function to run
     '''
-
     real_os_path_exists = os.path.exists
+
     def mock_os_path_exists(path):
         if path == os.path.join(MOCK_PROJECT_DIR, 'setup.py'):
             return True

unit_test/main_tests/main_options_test.py

@@ -1,14 +1,11 @@
-import pytest
-
 import sys
 
+import pytest
+
 from cibuildwheel.__main__ import main
 from cibuildwheel.environment import ParsedEnvironment
 from cibuildwheel.util import BuildSelector
 
-from main_util_fixtures import mock_protection, fake_project_dir, platform, intercepted_build_args
-
-
 
 # CIBW_PLATFORM is tested in main_platform_test.py
 
@@ -93,6 +90,7 @@ def get_default_repair_command(platform):
     else:
         raise ValueError('Unknown platform', platform)
 
+
 @pytest.mark.parametrize('repair_command', [None, 'repair', 'repair -w {dest_dir} {wheel}'])
 @pytest.mark.parametrize('platform_specific', [False, True])
 def test_repair_command(repair_command, platform_specific, platform, intercepted_build_args, monkeypatch):
@@ -225,5 +223,3 @@ def test_build_selector_migrations(intercepted_build_args, monkeypatch, option_n
         assert intercepted_build_selector.build_patterns == build_selector_patterns
     else:
         assert intercepted_build_selector.skip_patterns == build_selector_patterns
-
-

unit_test/main_tests/main_platform_test.py

@@ -1,10 +1,10 @@
-import pytest
-
 import sys
 
+import pytest
+
 from cibuildwheel.__main__ import main
 
-from main_util_fixtures import MOCK_PROJECT_DIR, mock_protection, fake_project_dir, platform, intercepted_build_args
+from conftest import MOCK_PROJECT_DIR  # noqa: I100
 
 
 def test_unknown_platform_non_ci(monkeypatch, capsys):