Initial commit

calculator.py

+def calculate(expression):
+    ans = eval(expression)
+    print(ans)
+    return
+
+def get_expression():
+    expression = input("Enter the expression..")
+    return expression
+
+while True:
+    expression = get_expression()
+    if expression.lower() == "stop":
+        print("Exiting calculator.")
+        break
+    else:
+        calculate(expression)
+    
+
+