python len int code example

Example 1: python execute string

a = """
A = 5
if A > 0 :
	print("A Is Positive")
elif A == 0 : 
	print("A Is Equal To 0")
else : 
	print("A Is Negative")
"""
exec(a)
>>> A Is Positive
#you can also use eval(string) for asyncio

Example 2: python input integer

# To prompt the user to input an integer we do the following:
valid = False

while not valid: #loop until the user enters a valid int
    try:
        x = int(input('Enter an integer: '))
        valid = True #if this point is reached, x is a valid int
    except ValueError:
        print('Please only input digits')

Example 3: len of int python

len(str(n))  #n is a number