[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

graphics/butterfly_pattern.py

@@ -6,10 +6,11 @@ def butterfly_pattern(n):
         print("*" * i)
 
     # Lower part
-    for i in range(n-1, 0, -1):
+    for i in range(n - 1, 0, -1):
         print("*" * i, end="")
         print(" " * (2 * (n - i)), end="")
         print("*" * i)
 
+
 n = int(input("Enter the size: "))
-butterfly_pattern(n)
+butterfly_pattern(n)