Drop PEP440 dependency

examples/single/expected.txt

@@ -10,7 +10,7 @@
 long_description_content_type: (README.rst  ) text/x-rst
                          name: (explicit    ) single
                    py_modules: (auto-fill   ) ["single"]
-               setup_requires: (explicit    ) ["setupmeta", "setuptools_scm"]
+               setup_requires: (explicit    ) ["setupmeta"]
                           url: (missing     ) - Consider specifying 'url'
                       version: (single.py:8 ) 0.1.0
 
@@ -33,7 +33,6 @@ setup(
     long_description_content_type="text/x-rst", # from README.rst
     name="single",
     py_modules=["single"],
-    setup_requires=["setuptools_scm"],
     version=__version__,                    # from single.py:8
 )
 

examples/single/setup.py

@@ -8,5 +8,5 @@
 
 setup(
     name="single",
-    setup_requires=["setupmeta", "setuptools_scm"],
+    setup_requires=["setupmeta"],
 )

tests/requirements.txt

@@ -1,3 +1,3 @@
-pep440
+packaging
 pytest-cov
 setuptools  # Needed by definition, as setupmeta is setuptools hook

tests/test_commands.py

@@ -40,8 +40,8 @@ def test_check_dependencies():
         # check --deptree is only useful when ran from a venv, which is guaranteed when invoking tests via tox (but may not be otherwise)
         run_setup_py(
             ["check", "--deptree"],
-            """
-                pep440==.+
+            r"""
+                packaging \[required: Any, installed: [\d+.]+\]
                 pytest-cov==.+
             """,
             folder=conftest.PROJECT_DIR,

tests/test_content.py

@@ -78,9 +78,9 @@ def test_run_program():
         assert setupmeta.run_program("ls", capture=True, dryrun=True) is None
         assert setupmeta.run_program("ls", capture=False, dryrun=True) == 0
         assert setupmeta.run_program("ls", "foo/does/not/exist", capture=None) != 0
-        assert setupmeta.run_program("pip", "--version", capture=True)
-        assert setupmeta.run_program("pip", "foo bar", capture=True) == ""
-        assert "unknown command" in setupmeta.run_program("pip", "foo bar", capture="all")
+        assert setupmeta.run_program("python", "--version", capture=True)
+        assert setupmeta.run_program("python", "-c", "foo", capture=True) == ""
+        assert "NameError:" in setupmeta.run_program("python", "-c", "foo", capture="all")
         assert setupmeta.run_program("/foo/does/not/exist", capture=True, dryrun=True) is None
         assert setupmeta.run_program("/foo/does/not/exist", capture=False) != 0
 

tests/test_versioning.py

@@ -2,8 +2,8 @@
 import sys
 from unittest.mock import patch
 
-import pep440
 import pytest
+from packaging.version import parse
 
 import setupmeta
 import setupmeta.versioning
@@ -161,7 +161,7 @@ def quick_check(versioning, expected, describe="v0.1.2-5-g123-dirty", compliant=
     assert meta.version == expected
     if compliant:
         main_part, _, _ = meta.version.partition("+")
-        assert pep440.is_canonical(main_part)
+        assert str(parse(main_part)) == main_part
 
     versioning = meta.versioning
     assert versioning.enabled