merge in branch "setupcfg"

setup.cfg

@@ -1,7 +1,5 @@
 [metadata]
 name = pEp
-#TODO: automate version pull from hg/git
-version = 2.2.0-RC1
 url = https://pep.foundation
 download_url =
 ext_package = pEp
@@ -33,11 +31,14 @@ python_requires = >= 3.6
 test_suite = tests
 setup_requires =
     setuptools >=38.3.0
-install_requires =
+    # To automatically write the version from a SCM.
-    setuptools >=38.3.0
+    # Note: It fails with tags named as `Release_2.2.0-RC0`, because it is
-tests_require =
+    # not conforming to semantic versioning, but it succeed with tags as
+    # `2.2.0-rc0`.
+    setuptools_scm
+[options.extras_require]
+# To install these dependencies, run pip install .[test]
+test =
     pytest
     tox
-
-[options.extras_require]
 doc = sphinx

setup.py

@@ -223,4 +223,7 @@ setup(
     cmdclass={
         'build_ext': BuildExtCommand,
     },
+    # While not using a pyproject.toml, support setuptools_scm setup.cfg usage,
+    # see https://github.com/pypa/setuptools_scm/#setupcfg-usage
+    use_scm_version=True,
 )

src/pEp/__init__.py

@@ -2,7 +2,7 @@
 # This file is being exectued upon 'import pEp'
 #
 # __all__ could be used to limit the symbols exported when using from <pkg> import *
-
+from pkg_resources import DistributionNotFound, get_distribution
 
 # Import all symbols EXCEPT the ones beginning with underscore into the current namespace
 from native_pEp import *
@@ -11,6 +11,10 @@ from native_pEp import *
 # import the module
 import native_pEp
 
+try:
+    __version__ = get_distribution(__name__).version
+except DistributionNotFound:
+    print("Package is not installed.")
 
 # Executed on module import
 def init():

tests/test_pep.py

@@ -0,0 +1,11 @@
+"""Unit test for pEp package, not for subpackages or modules."""
+
+from pEp import __version__
+
+
+def test_pep_version():
+    """    Test that __version__ is not None or empty and is not 0.0.0."""
+    # We could also test that match the regex, but that is already a test in
+    # setuptools_scm itself.
+    assert __version__
+    assert __version__ != "0.0.0"