Can someone tell me if there is a problem with this code.It is supposed to take give the sum of consecutive numbers ?

Question

It is given first and last numbers of a list of consecutive numbers and gives there sum:
Code here:

def find_sum(first_number, second_number):
return((first_number + second_number )*(second_number/ 2))
num1=float(input("first number : "))
num2=float(input("second number "))
if num1 and num2==type(int):
answer = find_sum(num1, num2)
print('The sum of a list of numbers',)
print ('('+num1+","+num2+')' , )
print ("is"+ answer)
else:
print("invalid input")

Answer 1

Hi Richard!
When you're trying to connect two conditions using logical operators you have to compare each variable separately. Here, you used float() to convert your input to a float but you're checking whether it's a integer or not. For that, you can check if they're floats or not.
And, you can't add integers/floats with strings. Inorder to handle this problem, you can use str() function for them or use comma as concat operator.
Here it is your corrected code.

def find_sum(first_number, second_number):
return((first_number + second_number )*(second_number/ 2))
num1=float(input("first number : "))
num2=float(input("second number "))
if type(num1) == float and type(num2) == float:
answer = find_sum(num1, num2)
print('The sum of a list of numbers')
print ('(',num1,",",num2,')' )
print ("is",answer)
else:
print("invalid input")