kisaa

>>> import decimal
# By default rounding setting in python is decimal.ROUND_HALF_EVEN
>>> decimal.getcontext().rounding = decimal.ROUND_DOWN
>>> c = decimal.Decimal(34.1499123)
# By default it should return 34.15 due to '99' after '34.14'
>>> round(c,2)
Decimal('34.14')
>>> float(round(c,2))
34.14
>>> print(round(c,2))
34.14

allowed = set('01')

def check(test_str):
    return set(test_str) <= allowed

print(check('010111010110'))
print(check('1264893215'))
print(check('ZXvn,mdg^&%32012mjcv'))

winddirections = ("северный", "северо-восточный", "восточный", "юго-восточный", "южный", "юго-западный", "западный", "северо-западный")
direction = int((degrees + 22.5) // 45 % 8)
print(winddirections[direction])