WIP: replace pep425tags with packaging

.github/workflows/codeqa-test-tag.yml

@@ -39,8 +39,8 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: ${{ matrix.python-version }}
-    - name: Upgrade setuptools
-      run: pip install "setuptools >= 40.9"
+    - name: Upgrade setuptools, pip
+      run: pip install "pip>=20.0.2" "setuptools >= 44" "packaging"
     - name: Install the project
       run: "pip install --no-binary=:all: ."
     - name: Install test dependencies

setup.cfg

@@ -34,6 +34,7 @@ package_dir=
 packages = find:
 python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*
 setup_requires = setuptools >= 40.9.0
+install_requires = packaging
 zip_safe = False
 
 [options.packages.find]

src/wheel/bdist_wheel.py

@@ -11,6 +11,7 @@
 import re
 from collections import OrderedDict
 from email.generator import Generator
+import distutils
 from distutils.core import Command
 from distutils.sysconfig import get_python_version
 from distutils import log as logger
@@ -19,13 +20,13 @@
 from warnings import warn
 from zipfile import ZIP_DEFLATED, ZIP_STORED
 
+import packaging.tags as tags
+import platform
 import pkg_resources
 
-from .pep425tags import get_abbr_impl, get_impl_ver, get_abi_tag, get_platform
 from .pkginfo import write_pkg_info
 from .metadata import pkginfo_to_metadata
 from .wheelfile import WheelFile
-from . import pep425tags
 from . import __version__ as wheel_version
 
 
@@ -35,6 +36,21 @@
 PY_LIMITED_API_PATTERN = r'cp3\d'
 
 
+def python_tag():
+    return 'py{}'.format(sys.version_info[0])
+
+
+# copied from pep425tags.py, is there a better way?
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and sys.maxsize == 2147483647:
+        # pip pull request #3497
+        result = "linux_i686"
+    return result
+
+
 def safer_name(name):
     return safe_name(name).replace('-', '_')
 
@@ -62,7 +78,7 @@ class bdist_wheel(Command):
                      "temporary directory for creating the distribution"),
                     ('plat-name=', 'p',
                      "platform name to embed in generated filenames "
-                     "(default: %s)" % get_platform(None)),
+                     "(default: %s)" % get_platform()),
                     ('keep-temp', 'k',
                      "keep the pseudo-installation tree around after " +
                      "creating the distribution archive"),
@@ -88,7 +104,7 @@ class bdist_wheel(Command):
                      .format(', '.join(supported_compressions))),
                     ('python-tag=', None,
                      "Python implementation compatibility tag"
-                     " (default: py%s)" % get_impl_ver()[0]),
+                     " (default: '%s')" % (python_tag())),
                     ('build-number=', None,
                      "Build number for this particular version. "
                      "As specified in PEP-0427, this must start with a digit. "
@@ -116,7 +132,7 @@ def initialize_options(self):
         self.group = None
         self.universal = False
         self.compression = 'deflated'
-        self.python_tag = 'py' + get_impl_ver()[0]
+        self.python_tag = python_tag()
         self.build_number = None
         self.py_limited_api = False
         self.plat_name_supplied = False
@@ -167,6 +183,7 @@ def wheel_dist_name(self):
         return '-'.join(components)
 
     def get_tag(self):
+        from . import pep425tags
         # bdist sets self.plat_name if unset, we should only use it for purepy
         # wheels if the user supplied it.
         if self.plat_name_supplied:
@@ -178,7 +195,7 @@ def get_tag(self):
             if self.plat_name and not self.plat_name.startswith("macosx"):
                 plat_name = self.plat_name
             else:
-                plat_name = get_platform(self.bdist_dir)
+                plat_name = get_platform()
 
             if plat_name in ('linux-x86_64', 'linux_x86_64') and sys.maxsize == 2147483647:
                 plat_name = 'linux_i686'
@@ -192,15 +209,15 @@ def get_tag(self):
                 impl = self.python_tag
             tag = (impl, 'none', plat_name)
         else:
-            impl_name = get_abbr_impl()
-            impl_ver = get_impl_ver()
+            impl_name = pep425tags.get_abbr_impl()
+            impl_ver = pep425tags.get_impl_ver()
             impl = impl_name + impl_ver
             # We don't work on CPython 3.1, 3.0.
             if self.py_limited_api and (impl_name + impl_ver).startswith('cp3'):
                 impl = self.py_limited_api
                 abi_tag = 'abi3'
             else:
-                abi_tag = str(get_abi_tag()).lower()
+                abi_tag = str(pep425tags.get_abi_tag()).lower()
             tag = (impl, abi_tag, plat_name)
             supported_tags = pep425tags.get_supported(
                 self.bdist_dir,