use alternative method to get package version if __version__ is not set, as happens in GH action

petercorke · petercorke · commit 5e24645f4bfe · 2023-01-27T13:34:08.000+10:00
diff --git a/docs/source/conf.py b/docs/source/conf.py
@@ -22,14 +22,14 @@
 project = 'Spatial Maths package'
 copyright = '2020-, Peter Corke.'
 author = 'Peter Corke'
-import spatialmath
-version = spatialmath.__version__
-
-# The full version, including alpha/beta/rc tags
-# with open('../../RELEASE', encoding='utf-8') as f:
-#     release = f.read()
-# import spatialmath
-# release = spatialmath.__version__
+try:
+    import spatialmath
+    version = spatialmath.__version__
+except AttributeError:
+    import re
+    with open("../../pyproject.toml", "r") as f:
+        m = re.compile(r'version\s*=\s*"([0-9\.]+)"').search(f.read())
+        version = m[1]
 
 # -- General configuration ---------------------------------------------------
 
