Why the output is always the else part?

Question

num = input("Enter the number: ")

If num == 4:
print ("the number is 4")
elif num == 5:
print("the number is 5")
else:
print("the number is invalid")

In this program, no matter what input we provide it always ends up with the else part of the statement.
Why is this happening with this code ?
Any Explanation please???

Answer 1

Inputs in Python 3.x are treated as strings. You'd have to convert them to an appropriate data type afterwards. Here, you can just write

num = int(input("Enter the number:"))

in the first line, and the code should work fine. Let me know if the problem persists :)

Answer 2

I'm not an expert in Python, but I think that you first have to cast the input to integer (through the 'int' function??).

Answer 3

Pema Gyalpo
Num = input()
#Num will be always string unless you cast it

Num =2
#Num is now int

Num =2.0
#Num is float (Note the decimal point)

Num =int(input())
#Num is int (Although if you pass an input which cannot be converted to an integer, an error will be raise)

Answer 4

When an input is provided
Regardless of what the input is it always says the number is invalid.

Why?

Answer 5

Thank you all for the ans
It really helped me.
But i have another doubt
What is the default datatype of the value when we take it directly as
Num = input
Or
Num = assigning a number

So whats the datatype of Num?