fixed import error

run.py

@@ -93,7 +93,15 @@ def validate_networkx():
             raise FileNotFoundError(
                 f"Provided filename {filename} does not point to a file!"
             )
-        network_type = config.Configuration.validate_network_type(options.network_type)
+
+        long_network_type = {"p": "pedestrian", "c": "car", "b": "bicycle"}
+        if options.network_type in long_network_type:
+            network_type = long_network_type[options.network_type]
+        elif options.network_type == long_network_type.values():
+            network_type = options.network_type
+        else:
+            print("ERROR: network type improperly set")
+            sys.exit(1)
     except FileNotFoundError as e:
         print(f"ERROR: {e}")
         sys.exit(1)