fixed an exception

src/ansible_module/__init__.py

@@ -1 +1 @@
-__version__ = "0.1.1.1"
+__version__ = "0.1.2"

src/ansible_module/update_doc.py

@@ -11,7 +11,12 @@ regex = re.compile("DOCUMENTATION *= *r?(?P<quote>\"{3}|'{3})(---)?.*?(?P=quote)
 
 
 def main():
-    for modfile in moduledir.iterdir():
+    try:
+        modules = moduledir.iterdir()
+    except:
+        print("failed to find modules")
+        return
+    for modfile in modules:
         if modfile.name in ("__init__.py", "__pycache__", "unit.py.example"):
             continue
         mod = importlib.import_module(".".join((modfile.parts[:-1]) + (modfile.stem,)))