Adopted new convention from template

src/Python/Problems001-050/Problem039.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 """
 Created on 05 Jun 2021
 
@@ -22,6 +22,7 @@ def compute():
 
     For which value of p ≤ 1000, is the number of solutions maximised?
     """
+
     ans, val = 0, 0
     for p in range(2, 1001, 2):
         sol = 0
@@ -39,6 +40,6 @@ def compute():
 
     return val
 
-if __name__ == "__main__":
 
-    print(f"Result for Problem 39: {compute()}")
+if __name__ == "__main__":
+    print(f"Result for Problem 39 is {compute()}")