fix for division by 0 problem for projects without any modules

update.py

@@ -194,9 +194,11 @@ def fetch_modules(config, module_directory):
                     config.sections()))
     n = len(l)
 
+    list_of_modules = []
+
+    if n > 0:  # otherwise division by zero in print_progress_bar
         i = 0
         print_progress_bar(text='- fetching modules:', done=0, total=n, width=30)
-    list_of_modules = []
         for section in config.sections():
             if config.has_option(section, 'source'):
                 for src in config.get(section, 'source').split('\n'):
@@ -219,6 +221,7 @@ def fetch_modules(config, module_directory):
                     width=30
                 )
         print('')
+
     return list_of_modules