datetime.isocalendar() Return a 3-tuple, (ISO year, ISO week number, ISO weekday). The same as self.date().isocalendar()

datetime.__str__() For a datetime instance d, str(d) is equivalent to d.isoformat('

time.utcoffset() If tzinfo is None, returns None, else returns self.tzinfo.utcoffset(None)

Repr.repr1(obj, level) Recursive implementation used by repr(). This uses the type of obj to determine

collections.namedtuple(typename, field_names, verbose=False, rename=False) Returns a new tuple subclass named typename

remove(value) Remove the first occurrence of value. If not found, raises a

types.LambdaType The type of user-defined functions and functions created by lambda expressions.

datetime.weekday() Return the day of the week as an integer, where Monday is 0 and Sunday is 6. The same as self.date()

PrettyPrinter.pprint(object) Print the formatted representation of object on the configured stream, followed by a newline

monthdays2calendar(year, month) Return a list of the weeks in the month month of the year as full weeks. Weeks