Workaround RTD error to generate the API pages

vdboor · vdboor · commit fab687c218c3 · 2017-09-30T18:47:03.000+02:00
diff --git a/polymorphic/__init__.py b/polymorphic/__init__.py
@@ -9,5 +9,8 @@
 
 import pkg_resources
 
+try:
+    __version__ = pkg_resources.require("django-polymorphic")[0].version
+except pkg_resources.DistributionNotFound:
+    __version__ = None  # for RTD among others
 
-__version__ = pkg_resources.require("django-polymorphic")[0].version
