Create calculator app

[PavelLinearB]

✨ PR Description

Purpose: Implements a basic command-line calculator with support for addition, subtraction, multiplication, and division operations.

Main changes:

• Created four basic arithmetic functions with error handling for division by zero
• Implemented operations dictionary to map user choices to functions and symbols
• Added interactive main loop with user input validation and calculation repetition option

Generated by LinearB AI and added by gitStream

[gitstream-cm]

✨ PR Review

Maintainability - calc/calc.py

Details:

Problem: Function docstrings are simple comments that don't follow standard Python documentation practices
Fix: Convert comments to proper docstrings with parameter and return type information
Why: Proper docstrings enable better IDE integration and documentation generation

-# This function adds two numbers
def add(x, y):
+def add(x, y):
+    """
+    Add two numbers together.
+    
+    Args:
+        x (float): First number
+        y (float): Second number
+    
+    Returns:
+        float: The sum of x and y
+    """
    return x + y

User Experience - calc/calc.py

Details:

Problem: Program ends abruptly without notification
Fix: Add exit message when user chooses to stop
Why: Improves user experience by providing clear program termination

            if next_calculation == "no":
+                print("Thanks for using the calculator. Goodbye!")
                break

Security - calc/calc.py

Details:

Problem: No handling of keyboard interrupts could leave program in unexpected state
Fix: Add try-except block for KeyboardInterrupt in main loop
Why: Ensures graceful program termination when user presses Ctrl+C

def main():
+    try:
        print("Select operation.")
        print("1.Add")
        print("2.Subtract")
        print("3.Multiply")
        print("4.Divide")
    
        while True:
            # rest of the code...
+    except KeyboardInterrupt:
+        print("\nProgram terminated by user")

Generated by LinearB AI and added by gitStream