如何检查 x 是否多于或少于七个整数？

Question

x = []
y = int(input("Hello, please enter your date of birth in this format: DDMMYYYY"))
x.append(y)
b = len.x()
if b > 7:
    input("Please enter your date of birth correctly in the above format")
elif b < 7:
    input("Please enter your date of birth correctly in the above format")

At the moment I'm getting this error:

b = len.x()

AttributeError: 'builtin_function_or_method' object has no attribute 'x'

Sorry, I'm quite new to python, thanks for all the help!

Answer 1

You can checkout the solution given in the below thread if you are dealing with date and time.

Getting input date from the user in python using datetime.datetime

Answer 2

Python'a len() is a function . It does not work like you think it does. What you doing is incorrect. Instead of this:

b = len.x()

Do this:

b = len(str(x))

You seem to be confused about the len() function. I suggest you read the Python documentation about it.