Imports name this capability’s declared dependencies, which fune builds next to it in your project; each one links to its page.
from .dates_add_days import is_leap_year as _kernel_is_leap_year ← from dates.add-days ^1.0.0 · built alongside by fune
def is_leap_year(year: int) -> bool:
"""Whether a year is a Gregorian leap year.
The rule lives in dates.add-days; this adds the range check so a year of 0
or 10000 fails loudly rather than answering for a year no ISO date can name.
"""
if isinstance(year, bool) or not isinstance(year, int):
raise TypeError("year must be an integer, received %r" % (year,))
if year < 1 or year > 9999:
raise ValueError("year %s is outside the supported range 1 to 9999" % (year,))
return _kernel_is_leap_year(year)