From e49dbce21071eed21bf978ed141946dda4581bfb Mon Sep 17 00:00:00 2001
From: Pavel Vaks <129676672+PavelLinearB@users.noreply.github.com>
Date: Wed, 19 Feb 2025 20:13:11 +0200
Subject: [PATCH 1/3] Create calc.py

---
 calc/calc.py | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 calc/calc.py

diff --git a/calc/calc.py b/calc/calc.py
new file mode 100644
index 0000000..efb526c
--- /dev/null
+++ b/calc/calc.py
@@ -0,0 +1,55 @@
+# This function adds two numbers
+def add(x, y):
+    return x + y
+
+# This function subtracts two numbers
+def subtract(x, y):
+    return x - y
+
+# This function multiplies two numbers
+def multiply(x, y):
+    return x * y
+
+# This function divides two numbers
+def divide(x, y):
+    return x / y
+
+
+print("Select operation.")
+print("1.Add")
+print("2.Subtract")
+print("3.Multiply")
+print("4.Divide")
+
+while True:
+    # take input from the user
+    choice = input("Enter choice(1/2/3/4): ")
+
+    # check if choice is one of the four options
+    if choice in ('1', '2', '3', '4'):
+        try:
+            num1 = float(input("Enter first number: "))
+            num2 = float(input("Enter second number: "))
+        except ValueError:
+            print("Invalid input. Please enter a number.")
+            continue
+
+        if choice == '1':
+            print(num1, "+", num2, "=", add(num1, num2))
+
+        elif choice == '2':
+            print(num1, "-", num2, "=", subtract(num1, num2))
+
+        elif choice == '3':
+            print(num1, "*", num2, "=", multiply(num1, num2))
+
+        elif choice == '4':
+            print(num1, "/", num2, "=", divide(num1, num2))
+        
+        # check if user wants another calculation
+        # break the while loop if answer is no
+        next_calculation = input("Let's do next calculation? (yes/no): ")
+        if next_calculation == "no":
+          break
+    else:
+        print("Invalid Input")

From 7bbb8292a46ed260817e0fe1489870656622adea Mon Sep 17 00:00:00 2001
From: PavelLinearB <pavel.vaks@linearb.io>
Date: Wed, 19 Feb 2025 20:18:51 +0200
Subject: [PATCH 2/3] fixed

---
 calc/calc.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/calc/calc.py b/calc/calc.py
index efb526c..68d9314 100644
--- a/calc/calc.py
+++ b/calc/calc.py
@@ -12,6 +12,8 @@ def multiply(x, y):
 
 # This function divides two numbers
 def divide(x, y):
+    if y == 0:
+        raise ValueError("Cannot divide by zero")
     return x / y
 
 
@@ -49,7 +51,7 @@ def divide(x, y):
         # check if user wants another calculation
         # break the while loop if answer is no
         next_calculation = input("Let's do next calculation? (yes/no): ")
-        if next_calculation == "no":
+        if next_calculation.lower() == "no":
           break
     else:
         print("Invalid Input")

From e0bb99aa9ec6849a58010fca3351fc5fc1a8b06f Mon Sep 17 00:00:00 2001
From: Pavel Vaks <129676672+PavelLinearB@users.noreply.github.com>
Date: Thu, 20 Feb 2025 19:31:02 +0200
Subject: [PATCH 3/3] Update calc.py

---
 calc/calc.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/calc/calc.py b/calc/calc.py
index 68d9314..4081c2d 100644
--- a/calc/calc.py
+++ b/calc/calc.py
@@ -27,7 +27,7 @@ def divide(x, y):
     # take input from the user
     choice = input("Enter choice(1/2/3/4): ")
 
-    # check if choice is one of the four options
+    # check if the choice is one of the four options
     if choice in ('1', '2', '3', '4'):
         try:
             num1 = float(input("Enter first number: "))