prettify and lint optimization

Day09/python/solution2.py

@@ -3,7 +3,9 @@ def generate_difference_table(history):
     table = [history]
     while not all(value == 0 for value in table[-1]):
         try:
-            next_row = [table[-1][i+1] - table[-1][i] for i in range(len(table[-1]) - 1)]
+            next_row = [
+                table[-1][i + 1] - table[-1][i] for i in range(len(table[-1]) - 1)
+            ]
         except IndexError as e:
             print(f"IndexError in generate_difference_table: {e}")
             print(f"Current table: {table}")
@@ -11,22 +13,24 @@ def generate_difference_table(history):
         table.append(next_row)
     return table
 
+
 def extrapolate_previous_value(table):
     """Extrapolates the previous value from the difference table."""
     try:
         for i in range(len(table) - 2, -1, -1):
-            table[i].insert(0, table[i][0] - table[i+1][0])
+            table[i].insert(0, table[i][0] - table[i + 1][0])
     except IndexError as e:
         print(f"IndexError in extrapolate_previous_value: {e}")
         print(f"Current table: {table}")
         raise
     return table[0][0]
 
+
 def solve_puzzle(filename):
     """Solves the puzzle by reading histories from the file and summing their extrapolated previous values."""
     total = 0
     try:
-        with open(filename, 'r') as file:
+        with open(filename, "r") as file:
             for line in file:
                 try:
                     history = [int(x) for x in line.split()]
@@ -37,7 +41,7 @@ def solve_puzzle(filename):
                     print(f"ValueError processing line '{line}': {e}")
                 except IndexError as e:
                     print(f"IndexError processing line '{line}': {e}")
-    except FileNotFoundError as e:
+    except FileNotFoundError:
         print(f"FileNotFoundError: The file {filename} was not found.")
         raise
     except Exception as e:
@@ -45,6 +49,7 @@ def solve_puzzle(filename):
         raise
     return total
 
+
 def test():
     """Runs the test using the test.txt file and asserts the expected outcome for the second part of the puzzle."""
     expected = 2  # Expected result from the test data for the second part
@@ -56,6 +61,7 @@ def test():
         print(e)
         raise
 
+
 def main():
     """Main function to run the test and then solve the puzzle."""
     print("Running test for the second part...")
@@ -64,5 +70,6 @@ def main():
     result = solve_puzzle("../input.txt")
     print(f"Puzzle result for the second part: {result}")
 
+
 if __name__ == "__main__":
     main()