Actually update trains continuously

buba/animations/dbf.py

@@ -36,12 +36,13 @@ class DBFAnimation(BubaAnimation):
         self.log.info(f"Fetched {len(trains)} trains")
 
     def update(self):
-        try:
-            self.fetch()
-        except Exception as e:
-            self.log.warning(f"Unable to fetch {self.station}: {e}")
-            pass
-        sleep(60)
+        while True:
+            try:
+                self.fetch()
+            except Exception as e:
+                self.log.warning(f"Unable to fetch {self.station}: {e}")
+                pass
+            sleep(60)
 
     @staticmethod
     def countdown(dt: datetime):