Merge pull request #3256 from mop/allow-sections-with-dots

theano/configparser.py

@@ -144,7 +144,7 @@ def fetch_val_for_key(key):
     # next try to find it in the config file
 
     # config file keys can be of form option, or section.option
-    key_tokens = key.split('.')
+    key_tokens = key.rsplit('.', 1)
     if len(key_tokens) > 2:
         raise KeyError(key)