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from __future__ import absolute_import
from datetime import time
from datetime import timedelta
import pendulum
from .constants import SECS_PER_HOUR
from .constants import SECS_PER_MIN
from .constants import USECS_PER_SEC
from .duration import AbsoluteDuration
from .duration import Duration
from .mixins.default import FormattableMixin
class Time(FormattableMixin, time):
"""
Represents a time instance as hour, minute, second, microsecond.
"""
# String formatting
def __repr__(self):
us = ""
if self.microsecond:
us = ", {}".format(self.microsecond)
tzinfo = ""
if self.tzinfo:
tzinfo = ", tzinfo={}".format(repr(self.tzinfo))
return "{}({}, {}, {}{}{})".format(
self.__class__.__name__, self.hour, self.minute, self.second, us, tzinfo
)
# Comparisons
def closest(self, dt1, dt2):
"""
Get the closest time from the instance.
:type dt1: Time or time
:type dt2: Time or time
:rtype: Time
"""
dt1 = self.__class__(dt1.hour, dt1.minute, dt1.second, dt1.microsecond)
dt2 = self.__class__(dt2.hour, dt2.minute, dt2.second, dt2.microsecond)
if self.diff(dt1).in_seconds() < self.diff(dt2).in_seconds():
return dt1
return dt2
def farthest(self, dt1, dt2):
"""
Get the farthest time from the instance.
:type dt1: Time or time
:type dt2: Time or time
:rtype: Time
"""
dt1 = self.__class__(dt1.hour, dt1.minute, dt1.second, dt1.microsecond)
dt2 = self.__class__(dt2.hour, dt2.minute, dt2.second, dt2.microsecond)
if self.diff(dt1).in_seconds() > self.diff(dt2).in_seconds():
return dt1
return dt2
# ADDITIONS AND SUBSTRACTIONS
def add(self, hours=0, minutes=0, seconds=0, microseconds=0):
"""
Add duration to the instance.
:param hours: The number of hours
:type hours: int
:param minutes: The number of minutes
:type minutes: int
:param seconds: The number of seconds
:type seconds: int
:param microseconds: The number of microseconds
:type microseconds: int
:rtype: Time
"""
from .datetime import DateTime
return (
DateTime.EPOCH.at(self.hour, self.minute, self.second, self.microsecond)
.add(
hours=hours, minutes=minutes, seconds=seconds, microseconds=microseconds
)
.time()
)
def subtract(self, hours=0, minutes=0, seconds=0, microseconds=0):
"""
Add duration to the instance.
:param hours: The number of hours
:type hours: int
:param minutes: The number of minutes
:type minutes: int
:param seconds: The number of seconds
:type seconds: int
:param microseconds: The number of microseconds
:type microseconds: int
:rtype: Time
"""
from .datetime import DateTime
return (
DateTime.EPOCH.at(self.hour, self.minute, self.second, self.microsecond)
.subtract(
hours=hours, minutes=minutes, seconds=seconds, microseconds=microseconds
)
.time()
)
def add_timedelta(self, delta):
"""
Add timedelta duration to the instance.
:param delta: The timedelta instance
:type delta: datetime.timedelta
:rtype: Time
"""
if delta.days:
raise TypeError("Cannot add timedelta with days to Time.")
return self.add(seconds=delta.seconds, microseconds=delta.microseconds)
def subtract_timedelta(self, delta):
"""
Remove timedelta duration from the instance.
:param delta: The timedelta instance
:type delta: datetime.timedelta
:rtype: Time
"""
if delta.days:
raise TypeError("Cannot subtract timedelta with days to Time.")
return self.subtract(seconds=delta.seconds, microseconds=delta.microseconds)
def __add__(self, other):
if not isinstance(other, timedelta):
return NotImplemented
return self.add_timedelta(other)
def __sub__(self, other):
if not isinstance(other, (Time, time, timedelta)):
return NotImplemented
if isinstance(other, timedelta):
return self.subtract_timedelta(other)
if isinstance(other, time):
if other.tzinfo is not None:
raise TypeError("Cannot subtract aware times to or from Time.")
other = self.__class__(
other.hour, other.minute, other.second, other.microsecond
)
return other.diff(self, False)
def __rsub__(self, other):
if not isinstance(other, (Time, time)):
return NotImplemented
if isinstance(other, time):
if other.tzinfo is not None:
raise TypeError("Cannot subtract aware times to or from Time.")
other = self.__class__(
other.hour, other.minute, other.second, other.microsecond
)
return other.__sub__(self)
# DIFFERENCES
def diff(self, dt=None, abs=True):
"""
Returns the difference between two Time objects as an Duration.
:type dt: Time or None
:param abs: Whether to return an absolute interval or not
:type abs: bool
:rtype: Duration
"""
if dt is None:
dt = pendulum.now().time()
else:
dt = self.__class__(dt.hour, dt.minute, dt.second, dt.microsecond)
us1 = (
self.hour * SECS_PER_HOUR + self.minute * SECS_PER_MIN + self.second
) * USECS_PER_SEC
us2 = (
dt.hour * SECS_PER_HOUR + dt.minute * SECS_PER_MIN + dt.second
) * USECS_PER_SEC
klass = Duration
if abs:
klass = AbsoluteDuration
return klass(microseconds=us2 - us1)
def diff_for_humans(self, other=None, absolute=False, locale=None):
"""
Get the difference in a human readable format in the current locale.
:type other: Time or time
:param absolute: removes time difference modifiers ago, after, etc
:type absolute: bool
:param locale: The locale to use for localization
:type locale: str
:rtype: str
"""
is_now = other is None
if is_now:
other = pendulum.now().time()
diff = self.diff(other)
return pendulum.format_diff(diff, is_now, absolute, locale)
# Compatibility methods
def replace(
self, hour=None, minute=None, second=None, microsecond=None, tzinfo=True
):
if tzinfo is True:
tzinfo = self.tzinfo
hour = hour if hour is not None else self.hour
minute = minute if minute is not None else self.minute
second = second if second is not None else self.second
microsecond = microsecond if microsecond is not None else self.microsecond
t = super(Time, self).replace(hour, minute, second, microsecond, tzinfo=tzinfo)
return self.__class__(
t.hour, t.minute, t.second, t.microsecond, tzinfo=t.tzinfo
)
def __getnewargs__(self):
return (self,)
def _get_state(self, protocol=3):
tz = self.tzinfo
return (self.hour, self.minute, self.second, self.microsecond, tz)
def __reduce__(self):
return self.__reduce_ex__(2)
def __reduce_ex__(self, protocol):
return self.__class__, self._get_state(protocol)
Time.min = Time(0, 0, 0)
Time.max = Time(23, 59, 59, 999999)
Time.resolution = Duration(microseconds=1)
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