Update versioning

.gitignore

@@ -114,3 +114,6 @@ _skbuild/
 
 # Ignore ctags
 tags
+
+# setuptools_scm
+_version.py

setup.cfg

@@ -1,6 +1,5 @@
 [metadata]
 name = python-multem
-version = 0.3.0
 
 description = A Python wrapper for MULTEM 
 long_description = file: README.md

setup.py

@@ -58,11 +58,12 @@ def main():
         package_dir={"": "src"},
         packages=find_packages(where="src"),
         install_requires=["numpy"],
-        setup_requires=["pytest-runner"],
+        setup_requires=["setuptools_scm", "pytest-runner"],
         tests_require=tests_require,
         test_suite="tests",
         ext_modules=[Extension("multem_ext", [])],
         cmdclass={"build_ext": CMakeBuild},
+        use_scm_version={"write_to": "src/multem/_version.py"},
         extras_require={
             "build_sphinx": ["sphinx", "sphinx_rtd_theme"],
             "test": tests_require,

src/multem/__init__.py

@@ -8,6 +8,14 @@
 # This code is distributed under the GPLv3 license, a copy of
 # which is included in the root directory of this package.
 #
+
+
+try:
+    from multem._version import version as __version__
+except ImportError:
+    __version__ = "unknown"
+
+
 import numpy
 from multem_ext import *  # noqa