Update install.py

install.py

@@ -79,7 +79,7 @@ def yaml_pretty_dump(data, file, **extra):
 def dump_errors(result):
     # Filter errors only
     errors = {}
-    for key, data in result.iteritems():
+    for key, data in result.items():
         if not data['result']:
             errors[key] = data
     with open(join(PREFIX, 'errors.yml'), 'w') as f:
@@ -208,7 +208,7 @@ with Halo(text='Installing', spinner='dots'):
 
 # Count errors and print to console
 error_num = 0
-for key, data in result.iteritems():
+for key, data in result.items():
     if not data['result']:
         print('Error in state: %s' % key)
         error_num += 1