Include __version__ at runtime (#176)

This PR adds a `__version__` attribute to the top level module

python/acquire/__init__.py

@@ -9,12 +9,17 @@
     Tuple,
     Union,
 )
-
+from importlib.metadata import version, PackageNotFoundError
 import numpy.typing as npt
 
 from . import acquire
 from .acquire import *
 
+try:
+    __version__ = version("acquire-imaging")
+except PackageNotFoundError:
+    __version__ = "uninstalled"
+
 __doc__ = acquire.__doc__
 
 import logging

python/acquire/__init__.pyi

@@ -4,6 +4,8 @@ import napari  # type: ignore
 
 from .acquire import Runtime, Properties
 
+__version__: str
+
 def setup(
     runtime: Runtime,
     camera: Union[str, List[str]] = ...,

tests/test_basic.py

@@ -18,6 +18,13 @@ def runtime():
     yield acquire.Runtime()
 
 
+def test_version():
+     assert isinstance(acquire.__version__, str)
+     # this will fail if pip install -e . has not been run
+     # so feel free to remove this line if it's not what you want to test
+     assert acquire.__version__ != "uninstalled"
+
+
 def test_set():
     t = Trigger()
     assert not t.enable