Add local fallback for theme file

Useful for development

epour/gui/__init__.py

@@ -20,6 +20,7 @@
 #
 
 import os
+import sys
 import cgi
 import logging
 from datetime import timedelta, datetime
@@ -75,6 +76,15 @@ for data_path in load_data_paths("epour"):
             theme_file = os.path.join(data_path, "themes", "default.edj")
             break
 
+if not theme_file:
+    dir_path = os.getcwd()
+    path = os.path.join(dir_path, "data", "themes", "default.edj")
+
+    if os.path.exists(path):
+        theme_file = path
+    else:
+        sys.exit("Theme file not found, will not progress without it. Compile the theme with setup.py build_edc")
+
 
 class MainInterface(object):