watch for python file changes too

docs/Makefile

@@ -29,7 +29,7 @@ help:
 	@echo "  doctest   to run all doctests embedded in the documentation (if enabled)"
 
 loop:
-	python watcher.py 'make html' `find . -name '*.rst'`
+	python watcher.py 'make html' `find .. -name '*.rst' -o -name '*.py'`
 
 clean:
 	-rm -rf $(BUILDDIR)/*