Create calc.py

[PavelLinearB]

✨ PR Description

Purpose: Implements a basic command-line calculator that performs four fundamental arithmetic operations.

Main changes:

• Added four core arithmetic functions (add, subtract, multiply, divide)
• Implemented user input handling with error checking for invalid inputs
• Created interactive loop allowing multiple calculations with option to exit

Generated by LinearB AI and added by gitStream

[gitstream-cm]

✨ PR Review

Bug - calc/calc.py (Line 14)

Details:

Problem: No handling for division by zero
Fix: Add zero division check in divide function
Why: Prevents program crash and provides better user feedback

def divide(x, y):
+    if y == 0:
+        raise ValueError("Cannot divide by zero")
    return x / y

Bug - calc/calc.py (Line 47)

Details:

Problem: Next calculation check is case-sensitive and only checks for "no"
Fix: Convert input to lowercase and check for variations of yes/no
Why: Improves user experience by accepting common input variations

-        next_calculation = input("Let's do next calculation? (yes/no): ")
-        if next_calculation == "no":
+        next_calculation = input("Let's do next calculation? (yes/no): ").lower()
+        if next_calculation not in ('y', 'yes'):
           break

Generated by LinearB AI and added by gitStream