add command swapping

calc.py

@@ -15,72 +15,113 @@ def main():
         case _:
             print(KeyError("Incorrect"))
             main()
-def summ():
+def summ(total=None):
     print("Enter number(s) to summ, enter spase to finish calculating")
-    try:
-        total = float(input("Enter First number \n"))
-    except ValueError:
-        print("Enter a valid number")
-        return
+    if total is None:
+        try:
+            total = float(input("Enter First number \n"))
+        except ValueError:
+            print("Enter a valid number")
+            return
     while True:
         num_input = input("Enter numbers to summ\n")
         if num_input == " " or num_input == "":
             print(total)
             main()
+        if num_input in ["+", "-", "*", "/"]:
+            if num_input == "+":
+                return summ(total)
+            elif num_input == "-":
+                return minus(total)
+            elif num_input == "*":
+                return multiplication(total)
+            elif num_input == "/":
+                return division(total)
         try:
             number = float(num_input)
-            total -= number
+            total += number
             print(f"Total summ = {total}")
         except ValueError:
             print("Error, enter correct number")
-def minus():
-    print("Enter number(s) to minus, enter spase to finish calculating")
-    try:
-        total = float(input("Enter First number \n"))
-    except ValueError:
-        print("Enter a valid number")
-        return
+def minus(total=None):
+    print("Enter number(s) to summ, enter spase to finish calculating")
+    if total is None:
+        try:
+            total = float(input("Enter First number \n"))
+        except ValueError:
+            print("Enter a valid number")
+            return
     while True:
         num_input = input("Enter numbers to minus\n")
         if num_input == " " or num_input == "":
             print(total)
             main()
+        if num_input in ["+", "-", "*", "/"]:
+            if num_input == "+":
+                return summ(total)
+            elif num_input == "-":
+                return minus(total)
+            elif num_input == "*":
+                return multiplication(total)
+            elif num_input == "/":
+                return division(total)
         try:
             number = float(num_input)
             total -= number
             print(f"Total minus = {total}")
         except ValueError:
             print("Error, enter correct number")
-def multiplication():
+def multiplication(total=None):
     print("Enter number(s) to multuplicate, enter spase to finish calculating")
-    try:
-        total = float(input("Enter First number \n"))
-    except ValueError:
-        print("Enter a valid number")
-        return
+    print("Enter number(s) to summ, enter spase to finish calculating")
+    if total is None:
+        try:
+            total = float(input("Enter First number \n"))
+        except ValueError:
+            print("Enter a valid number")
+            return
     while True:
         num_input = input("Enter numbers to multiplicate\n")
         if num_input == " " or num_input == "":
             print(total)
             main()
+        if num_input in ["+", "-", "*", "/"]:
+            if num_input == "+":
+                return summ(total)
+            elif num_input == "-":
+                return minus(total)
+            elif num_input == "*":
+                return multiplication(total)
+            elif num_input == "/":
+                return division(total)
         try:
             number = float(num_input)
             total *= number
             print(f"Total multiplication = {total}")
         except ValueError:
             print("Error, enter correct number")
-def division():
-    print("Enter number(s) to division, enter spase to finish calculating")
-    try:
-        total = float(input("Enter First number \n"))
-    except ValueError:
-        print("Enter a valid number")
-        return
+def division(total=None):
+    print("Enter number(s) to summ, enter spase to finish calculating")
+    if total is None:
+        try:
+            total = float(input("Enter First number \n"))
+        except ValueError:
+            print("Enter a valid number")
+            return
     while True:
         num_input = input("Enter numbers to division\n")
         if num_input == " " or num_input == "":
             print(total)
             main()
+        if num_input in ["+", "-", "*", "/"]:
+            if num_input == "+":
+                return summ(total)
+            elif num_input == "-":
+                return minus(total)
+            elif num_input == "*":
+                return multiplication(total)
+            elif num_input == "/":
+                return division(total)
         try:
             number = float(num_input)
             total /= number