Python returns 'FileNotFoundError: [Errno 2] No such file or directory:' when trying to create a file with time and date

Question

I want to create a script that creates a file named after the current time and date in dd/mm/YY H:M:S format, like this:

from datetime import datetime

now = datetime.now()
# dd/mm/YY H:M:S
dt_string = now.strftime("%d/%m/%Y %H:%M:%S")
open(str(dt_string), 'w+')

However, when I try to run it it returns FileNotFoundError: [Errno 2] No such file or directory: '25/06/2022 13:02:32'

Isn't Python supposed to create a new file, when you try to open one that doesn't exist?

I've tried using now as a string to use as a file name an it worked perfectly

from datetime import datetime

now = datetime.now()
# dd/mm/YY H:M:S
#dt_string = now.strftime("%d/%m/%Y %H:%M:%S")
open(str(now), 'w+')

Why doesn't it accept dt_string as a file name?

Answer 1

I got it, thanks to FObersteiner

The problem was with '/' separators. I used dashes instead an everything worked perfectly. I also included ':' and there wasn't any problem with it.