Put itertools import to the top

Author: acsany

python-enumerate/enumerate_alternatives.py

@@ -1,3 +1,12 @@
+from itertools import pairwise
+
+# Advanced Iteration Patterns
+
+cities = ["Graz", "Belgrade", "Warsaw", "Berlin"]
+
+for city, next_city in pairwise(cities):
+    print(f"{city} -> {next_city}")
+
 # Slicing
 
 game_name = "Stardew Valley"
@@ -10,12 +19,3 @@
 
 for pet, owner in zip(pets, owners):
     print(f"{pet} & {owner}")
-
-# Advanced Iteration Patterns
-
-from itertools import pairwise
-
-cities = ["Graz", "Belgrade", "Warsaw", "Berlin"]
-
-for city, next_city in pairwise(cities):
-    print(f"{city} -> {next_city}")