Why doesn't the format fit?

Question

Python

try:
    obj = datetime.strptime('11.10.2021\xa0пн', '%d.%m.%Y\xa0%a')
    print(obj)
    print(obj.strftime("Date:%d Month:%m Year:%Y"))  # strftime to format datetime obj
except ValueError as ex:
    print("ValueError: ", ex)

Throws an error:
ValueError: time data '10/11/2021\xa0mon' does not match format '%d.%m.%Y\xa0%a'

Answer 1

Because
either

obj = datetime.strptime('11.10.2021\xa0Mon', '%d.%m.%Y\xa0%a')

or

import locale
locale.setlocale(locale.LC_ALL, "ru")
obj = datetime.strptime('11.10.2021\xa0пн', '%d.%m.%Y\xa0%a')