refactor code

Author: shoaibdevgourmet

electronics/power_factor.py

@@ -6,9 +6,8 @@ def calculate_apparent_power(voltage, current):
     try:
         return voltage * current
     except TypeError:
-        raise ValueError(
-            "Invalid input types for voltage or current. Both must be numbers."
-        )
+        error_msg = "Invalid input types for voltage or current. Both must be numbers."
+        raise ValueError(error_msg)
 
 
 def calculate_power_factor(real_power, apparent_power):
@@ -18,9 +17,8 @@ def calculate_power_factor(real_power, apparent_power):
             raise ValueError("Apparent power cannot be zero.")
         return real_power / apparent_power
     except TypeError:
-        raise ValueError(
-            "Invalid input types for real power or apparent power. Both must be numbers."
-        )
+        error_msg = "Invalid input types for real power or apparent power. Both must be numbers."
+        raise ValueError(error_msg)
 
 
 def calculate_reactive_power(real_power, apparent_power):
@@ -32,9 +30,8 @@ def calculate_reactive_power(real_power, apparent_power):
             )
         return math.sqrt(apparent_power**2 - real_power**2)
     except TypeError:
-        raise ValueError(
-            "Invalid input types for real power or apparent power. Both must be numbers."
-        )
+        error_msg = "Invalid input types for real power or apparent power. Both must be numbers."
+        raise ValueError(error_msg)
     except ValueError as ve:
         raise ValueError(f"Calculation error: {ve}")
 
@@ -44,14 +41,14 @@ def calculate_correction_capacitance(reactive_power, voltage, frequency=60):
     try:
         if voltage == 0:
             raise ValueError("Voltage cannot be zero.")
-        capacitance = (reactive_power * 1_000_000) / (
-            2 * math.pi * frequency * voltage**2
+        capacitance = (
+            (reactive_power * 1_000_000)
+            / (2 * math.pi * frequency * voltage**2)
         )
         return capacitance
     except TypeError:
-        raise ValueError(
-            "Invalid input types for reactive power, voltage, or frequency. They must be numbers."
-        )
+        error_msg = "Invalid input types for reactive power, voltage, or frequency. They must be numbers."
+        raise ValueError(error_msg)
     except ValueError as ve:
         raise ValueError(f"Calculation error: {ve}")
 
@@ -69,7 +66,7 @@ def main():
             reactive_power, voltage
         )
 
-        print(f"\nResults:")
+        print("\nResults:")
         print(f"Power Factor: {power_factor:.4f}")
         print(f"Apparent Power: {apparent_power:.0f} VA")
         print(f"Reactive Power: {reactive_power:.0f} VAR")