Index: tuir/theme.py
--- tuir/theme.py.orig
+++ tuir/theme.py
@@ -399,7 +399,7 @@ class Theme(object):
             config = configparser.ConfigParser()
             config.optionxform = six.text_type  # Preserve case
             with codecs.open(filename, encoding='utf-8') as fp:
-                config.readfp(fp)
+                config.read_file(fp)
         except configparser.ParsingError as e:
             raise ConfigError(e.message)
 
