fixed mustard with self.filename

diff --git a/molpyup.py b/molpyup.py
index 778273779d6d5a227d3dd2b359f5365641125b4e..fe20240a5a0ebf7fa7746f9b17896254f5f804f3 100644 (file)
--- a/molpyup.py
+++ b/molpyup.py
@@ -595,6 +595,8 @@ class MolpyUp:
     def run(self):
         if len(sys.argv) > 1:
             self.filename = sys.argv[1]
+        else:
+            self.filename = None
         self.reset()
         while True:
             self.screen.fill((255,255,255))