added calculator codes

Hello.py

@@ -0,0 +1,14 @@
+print("Hello!")
+
+
+print("this is the edited branch")
+
+
+print("This is the addon for feature 1")
+
+print("i am adding this line!!!")
+
+print("Hello this is adding new feature1")
+
+#add new comment
+

mycalculator/my_calculator_class.py

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+from my_calculator_functions import *
+
+class MyCalculator(object):
+
+    def __init__(self):
+        self._answer = 0.0
+
+
+    def last_answer(self):
+        return self._answer
+
+    def do_math(self, *arg, function):
+        self._answer = function(*arg)
+        return self._answer
+
+
+    def add(self, *arg):
+        return self.do_math(*arg, add)
+
+    def subtract(self, *arg):
+        return self.do_math(*arg, subtract)
+
+    def multiply(self, *arg):
+        return self.do_math(*arg, multiply)
+
+    def divide(self, *arg):
+        return self.do_math(*arg, divide)

mycalculator/my_calculator_functions.py

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+def add(*arg):
+    if(len(arg)>10):
+       print("this is another easter")
+       return "Error: >10 Values"
+
+
+    if(len(arg) > 10):
+        print("Error >10 values given!")
+        return "Error: >10 Values"
+
+    print("Adding",len(arg),"numbers")
+    result = 0
+    for n in arg:
+        result = result + n
+
+    print("Add result is", result)
+    return result
+
+def subtract(*arg):
+    if(len(arg) > 10):
+        print("Error >10 values given!")
+        return "Error: >10 Values"
+    print("Subtracting",len(arg),"numbers")
+    result = arg[0]
+    for n in range(1, len(arg)):
+        result = result - arg[n]
+
+    print("Subtract result is", result)
+    return result
+
+def multiply(*arg):
+    if(len(arg) > 10):
+        print("Error >10 values given!")
+        return "Error: >10 Values"
+    print("Multipling",len(arg),"numbers")
+    result = arg[0]
+    for n in range(1, len(arg)):
+        result = result * arg[n]
+
+    print("Multiply result is", result)
+    return result
+
+def divide(*arg):
+    if(len(arg) > 10):
+        print("Error >10 values given!")
+        return "Error: >10 Values"
+    print("Dividing", len(arg),"numbers")
+
+    result = arg[0]
+    try:
+        for n in range(1, len(arg)):
+            result = result / arg[n]
+
+        print("Divide result is", result)
+        return result
+    except ZeroDivisionError:
+        print("Division by Zero Error at number", n+1)
+        return ZeroDivisionError
+
+
+
+
+

test_my_calculator_functions_addition.py

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+import pytest
+from mycalculator.my_calculator_functions import *
+
+'''
+@pytest.mark.parametrize("a,b,result",[(1,2,3), (2,4,6)])
+def test_add(a,b,result):
+    value = add(a,b)
+    assert value == result
+
+
+def test_add_negative_positive():
+    value = add(-1,2,3)
+    assert value == 4
+
+def test_add_negative_negative():
+    value = add(-1,-2)
+    assert value == -5
+'''
+
+def test_over_ten_variables():#add comment
+    value = add(1,2,3,4,5,6,7,8,9,10,11,12)
+    assert value == "Error: >10 Values"
+
+def test_multiplication():
+    value = multiply(1,1,1,1,1,1,1,1,1,1)
+    assert value == 1
+
+def test_multiplication_over_ten():
+    value = multiply(1,1,1,1,1,1,1,1,1,1,1)
+    assert value == "Error: >10 Values"