Merge pull request #5 from pupil-labs/importlib

Use importlib to read version instead of writing it to a file

pyproject.toml

@@ -6,15 +6,6 @@ build-backend = "setuptools.build_meta"
 skip-string-normalization = true
 
 [tool.setuptools_scm]
-write_to = "src/pupil_labs/project_name/version.py"
-write_to_template = """
-\"\"\" Version information \"\"\"
-__version__ = "{version}"
-__version_info__ = {version_tuple}
-"""
-
-[pytest.enabler.black]
-addopts = "--black"
 
 [pytest.enabler.mypy]
 addopts = "--mypy"

setup.cfg

@@ -21,6 +21,8 @@ classifiers =
 
 [options]
 packages = find_namespace:
+install_requires =
+    importlib-metadata;python_version<"3.8"
 python_requires = >=3.7
 include_package_data = true
 package_dir =
@@ -41,7 +43,6 @@ docs =
     sphinx<4.4  # 4.4 does not detect TypeVars correctly
 testing =
     pytest>=6
-    pytest-black>=0.3.7
     pytest-checkdocs>=2.4
     pytest-cov
     pytest-enabler>=1.0.1

src/pupil_labs/project_name/__init__.py

@@ -1,6 +1,14 @@
 """Top-level entry-point for the <project_name> package"""
 
-# .version is generated on install via setuptools_scm, see pyproject.toml
-from .version import __version__, __version_info__
+try:
+    from importlib.metadata import PackageNotFoundError, version
+except ImportError:
+    from importlib_metadata import PackageNotFoundError, version
 
-__all__ = ["__version__", "__version_info__"]
+try:
+    __version__ = version("pupil_labs.project_name")
+except PackageNotFoundError:
+    # package is not installed
+    pass
+
+__all__ = ["__version__"]

tests/test_api.py

@@ -3,4 +3,3 @@
 
 def test_package_metadata() -> None:
     assert hasattr(this_project, "__version__")
-    assert hasattr(this_project, "__version_info__")