Added majority of type annotations (to a by now outdated version)

cibuildwheel/macos.py

@@ -7,16 +7,21 @@ import tempfile
 from collections import namedtuple
 from glob import glob
 
+from typing import Callable, Dict, List, Optional, Union
+
+from .environment import (
+    ParsedEnvironment,
+)
 from .util import (
+    BuildOptions,
     download,
     get_build_verbosity_extra_flags,
-    prepare_command,
     get_pip_script,
-    BuildOptions
+    prepare_command,
 )
 
 
-def call(args, env=None, cwd=None, shell=False):
+def call(args: Union[str, List[str]], env: Optional[Dict[str, str]] = None, cwd: Optional[str] = None, shell: bool = False) -> int:
     # print the command executing for the logs
     if shell:
         print('+ %s' % args)
@@ -26,8 +31,10 @@ def call(args, env=None, cwd=None, shell=False):
     return subprocess.check_call(args, env=env, cwd=cwd, shell=shell)
 
 
-def get_python_configurations(build_selector):
-    PythonConfiguration = namedtuple('PythonConfiguration', ['version', 'identifier', 'url'])
+PythonConfiguration = namedtuple('PythonConfiguration', ['version', 'identifier', 'url'])
+
+
+def get_python_configurations(build_selector: Callable[[str], bool]) -> List[PythonConfiguration]:
     python_configurations = [
         # CPython
         PythonConfiguration(version='2.7', identifier='cp27-macosx_x86_64', url='https://www.python.org/ftp/python/2.7.18/python-2.7.18-macosx10.9.pkg'),
@@ -47,7 +54,7 @@ def get_python_configurations(build_selector):
 SYMLINKS_DIR = '/tmp/cibw_bin'
 
 
-def make_symlinks(installation_bin_path, python_executable, pip_executable):
+def make_symlinks(installation_bin_path: str, python_executable: str, pip_executable: str) -> None:
     assert os.path.exists(os.path.join(installation_bin_path, python_executable))
 
     # Python bin folders on Mac don't symlink `python3` to `python`, and neither
@@ -62,7 +69,7 @@ def make_symlinks(installation_bin_path, python_executable, pip_executable):
     os.symlink(os.path.join(installation_bin_path, pip_executable), os.path.join(SYMLINKS_DIR, 'pip'))
 
 
-def install_cpython(version, url):
+def install_cpython(version: str, url: str) -> str:
     installed_system_packages = subprocess.check_output(['pkgutil', '--pkgs'], universal_newlines=True).splitlines()
 
     # if this version of python isn't installed, get it from python.org and install
@@ -86,7 +93,7 @@ def install_cpython(version, url):
     return installation_bin_path
 
 
-def install_pypy(version, url):
+def install_pypy(version: str, url: str) -> str:
     pypy_tar_bz2 = url.rsplit('/', 1)[-1]
     assert pypy_tar_bz2.endswith(".tar.bz2")
     pypy_base_filename = os.path.splitext(os.path.splitext(pypy_tar_bz2)[0])[0]