day 3 slight simplification

day03/sol.py

@@ -44,12 +44,11 @@ for no, line in enumerate(data):
             print(n)
             part1 += n
 
-        seen = set()
+        nearby_gears = set()
         for i in pos:
-            for g in findgears(no,i):
-                if g not in seen:
-                    gears.setdefault(g, []).append(n)
-                    seen.add(g)
+            nearby_gears.update(findgears(no, i))
+        for g in nearby_gears:
+            gears.setdefault(g, []).append(n)
 
 print(part1)
 
@@ -58,11 +57,3 @@ for g, nums in gears.items():
     if len(nums) == 2:
         part2 += nums[0] * nums[1]
 print(part2)
-
-
-
-            
-
-    
-
-