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# Copyright (C) 2022 Exaloop Inc. <https://exaloop.io>
# Parts of this file: (c) 2022 Python Software Foundation. All right reserved.
# - Currently does not support timezones
# - Timedeltas use a pure-microseconds representations for efficiency, meaning they
# have a smaller range (+/- 292,471.2 years) but should be more than enough for
# all practical uses
# License:
# 1. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and
# the Individual or Organization ("Licensee") accessing and otherwise using Python
# 3.10.2 software in source or binary form and its associated documentation.
#
# 2. Subject to the terms and conditions of this License Agreement, PSF hereby
# grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
# analyze, test, perform and/or display publicly, prepare derivative works,
# distribute, and otherwise use Python 3.10.2 alone or in any derivative
# version, provided, however, that PSF's License Agreement and PSF's notice of
# copyright, i.e., "Copyright © 2001-2022 Python Software Foundation; All Rights
# Reserved" are retained in Python 3.10.2 alone or in any derivative version
# prepared by Licensee.
#
# 3. In the event Licensee prepares a derivative work that is based on or
# incorporates Python 3.10.2 or any part thereof, and wants to make the
# derivative work available to others as provided herein, then Licensee hereby
# agrees to include in any such work a brief summary of the changes made to Python
# 3.10.2.
#
# 4. PSF is making Python 3.10.2 available to Licensee on an "AS IS" basis.
# PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
# EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
# WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
# USE OF PYTHON 3.10.2 WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
#
# 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 3.10.2
# FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
# MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 3.10.2, OR ANY DERIVATIVE
# THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
#
# 6. This License Agreement will automatically terminate upon a material breach of
# its terms and conditions.
#
# 7. Nothing in this License Agreement shall be deemed to create any relationship
# of agency, partnership, or joint venture between PSF and Licensee. This License
# Agreement does not grant permission to use PSF trademarks or trade name in a
# trademark sense to endorse or promote products or services of Licensee, or any
# third party.
#
# 8. By copying, installing or otherwise using Python 3.10.2, Licensee agrees
# to be bound by the terms and conditions of this License Agreement.
from time import localtime
from time import struct_time
#############
# constants #
#############
MINYEAR = 1
MAXYEAR = 9999
MAXORDINAL = 3652059
MAX_DELTA_DAYS = 999999999
_DI4Y = 1461
_DI100Y = 36524
_DI400Y = 146097
_ROUND_HALF_EVEN = 0
_ROUND_CEILING = 1
_ROUND_FLOOR = 2
_ROUND_UP = 3
#############
# utilities #
#############
def _signed_add_overflowed(result: int, i: int, j: int) -> bool:
return ((result ^ i) & (result ^ j)) < 0
def _divmod(x: int, y: int) -> Tuple[int, int]:
# assert y > 0
quo = x // y
r = x - quo * y
if r < 0:
quo -= 1
r += y
# assert 0 <= r < y
return quo, r
def _divide_nearest(m: int, n: int) -> int:
return m // n # TODO
def _days_in_monthx(i: int) -> int:
return (0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)[i]
def _days_before_monthx(i: int) -> int:
return (0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334)[i]
def _is_leap(year: int) -> bool:
return year % 4 == 0 and (year % 100 != 0 or year % 400 == 0)
def _days_in_month(year: int, month: int) -> int:
# assert 1 <= month <= 12
if month == 2 and _is_leap(year):
return 29
else:
return _days_in_monthx(month)
def _days_before_month(year: int, month: int) -> int:
# assert 1 <= month <= 12
days = _days_before_monthx(month)
if month > 2 and _is_leap(year):
days += 1
return days
def _days_before_year(year: int) -> int:
y = year - 1
# assert year >= 1
return y * 365 + y // 4 - y // 100 + y // 400
def _ord_to_ymd(ordinal: int) -> Tuple[int, int, int]:
ordinal -= 1
n400 = ordinal // _DI400Y
n = ordinal % _DI400Y
year = n400 * 400 + 1
n100 = n // _DI100Y
n = n % _DI100Y
n4 = n // _DI4Y
n = n % _DI4Y
n1 = n // 365
n = n % 365
year += n100 * 100 + n4 * 4 + n1
if n1 == 4 or n100 == 4:
# assert n == 0
year -= 1
return (year, 12, 31)
leapyear = (n1 == 3) and (n4 != 24 or n100 == 3)
# assert leapyear == is_leap(year)
month = (n + 50) >> 5
preceding = _days_before_monthx(month) + int(month > 2 and leapyear)
if preceding > n:
month -= 1
preceding -= _days_in_month(year, month)
n -= preceding
# assert 0 <= n
# assert n < _days_in_month(year, month)
day = n + 1
return (year, month, day)
def _ymd_to_ord(year: int, month: int, day: int) -> int:
return _days_before_year(year) + _days_before_month(year, month) + day
def _weekday(year: int, month: int, day: int) -> int:
return (_ymd_to_ord(year, month, day) + 6) % 7
def _iso_week1_monday(year: int) -> int:
first_day = _ymd_to_ord(year, 1, 1)
first_weekday = (first_day + 6) % 7
week1_monday = first_day - first_weekday
if first_weekday > 3:
week1_monday += 7
return week1_monday
def _check_delta_day_range(days: int):
if not (-MAX_DELTA_DAYS <= days <= MAX_DELTA_DAYS):
raise OverflowError(f"days={days}; must have magnitude <= {MAX_DELTA_DAYS}")
def _check_date_args(year: int, month: int, day: int):
if not (MINYEAR <= year <= MAXYEAR):
raise ValueError(f"year {year} is out of range")
if not (1 <= month <= 12):
raise ValueError("month must be in 1..12")
if not (1 <= day <= _days_in_month(year, month)):
raise ValueError("day is out of range for month")
def _check_time_args(hour: int, minute: int, second: int, microsecond: int):
if not (0 <= hour <= 23):
raise ValueError("hour must be in 0..23")
if not (0 <= minute <= 59):
raise ValueError("minute must be in 0..59")
if not (0 <= second <= 59):
raise ValueError("second must be in 0..59")
if not (0 <= microsecond <= 999999):
raise ValueError("microsecond must be in 0..999999")
def _normalize_pair(hi: int, lo: int, factor: int) -> Tuple[int, int]:
# assert factor > 0
if lo < 0 or lo >= factor:
num_hi, lo = _divmod(lo, factor)
new_hi = hi + num_hi
# assert not _signed_add_overflowed(new_hi, hi, num_hi)
hi = new_hi
# assert 0 <= lo < factor
return hi, lo
def _normalize_d_s_us(d: int, s: int, us: int) -> Tuple[int, int, int]:
if us < 0 or us >= 1000000:
s, us = _normalize_pair(s, us, 1000000)
if s < 0 or s >= 24 * 3600:
d, s = _normalize_pair(d, s, 24 * 3600)
# assert 0 <= s < 24*3600
# assert 0 <= us < 1000000
return d, s, us
def _normalize_y_m_d(y: int, m: int, d: int) -> Tuple[int, int, int]:
def error():
raise OverflowError("date value out of range")
# assert 1 <= m <= 12
dim = _days_in_month(y, m)
if d < 1 or d > dim:
if d == 0:
m -= 1
if m > 0:
d = _days_in_month(y, m)
else:
y -= 1
m = 12
d = 31
elif d == dim + 1:
m += 1
d = 1
if m > 12:
m = 1
y += 1
else:
ordinal = _ymd_to_ord(y, m, 1) + d - 1
if ordinal < 1 or ordinal > MAXORDINAL:
error()
else:
return _ord_to_ymd(ordinal)
# assert m > 0
# assert d > 0
if not (MINYEAR <= y <= MAXYEAR):
error()
return y, m, d
def _normalize_date(year: int, month: int, day: int) -> Tuple[int, int, int]:
return _normalize_y_m_d(year, month, day)
def _normalize_datetime(
year: int,
month: int,
day: int,
hour: int,
minute: int,
second: int,
microsecond: int,
) -> Tuple[int, int, int, int, int, int, int]:
second, microsecond = _normalize_pair(second, microsecond, 1000000)
minute, second = _normalize_pair(minute, second, 60)
hour, minute = _normalize_pair(hour, minute, 60)
day, hour = _normalize_pair(day, hour, 24)
year, month, day = _normalize_date(year, month, day)
return year, month, day, hour, minute, second, microsecond
def _parse_digits(digits: str, num_digits: int) -> Tuple[str, int]:
if len(digits) < num_digits:
return "", -1
p = digits.ptr
var = 0
for i in range(num_digits):
tmp = int(p[0]) - 48 # 48 == '0'
if not (0 <= tmp <= 9):
return "", -1
var *= 10
var += tmp
p += 1
return str(p, len(digits) - num_digits), var
def _isoformat_error(s: str):
raise ValueError(f"Invalid isoformat string: {s}")
def _parse_isoformat_date(dtstr: str) -> Tuple[int, int, int]:
p = dtstr
p, year = _parse_digits(p, 4)
if year < 0:
_isoformat_error(dtstr)
if not p or p[0] != "-":
_isoformat_error(dtstr)
p = p[1:]
p, month = _parse_digits(p, 2)
if month < 0:
_isoformat_error(dtstr)
if not p or p[0] != "-":
_isoformat_error(dtstr)
p = p[1:]
p, day = _parse_digits(p, 2)
if day < 0 or p:
_isoformat_error(dtstr)
return year, month, day
def _parse_hh_mm_ss_ff(tstr: str) -> Tuple[int, int, int, int]:
hour, minute, second, microsecond = 0, 0, 0, 0
p = tstr
for i in range(3):
p, val = _parse_digits(p, 2)
if val < 0:
_isoformat_error(tstr)
if i == 0:
hour = val
if i == 1:
minute = val
if i == 2:
second = val
if not p:
return hour, minute, second, microsecond
c = p[0]
p = p[1:]
if c == ":":
continue
elif c == ".":
break
else:
_isoformat_error(tstr)
len_remains = len(p)
if not (len_remains == 6 or len_remains == 3):
_isoformat_error(tstr)
p, microsecond = _parse_digits(p, len_remains)
if microsecond < 0:
_isoformat_error(tstr)
if len_remains == 3:
microsecond *= 1000
return hour, minute, second, microsecond
def _parse_isoformat_time(dtstr: str) -> Tuple[int, int, int, int, int, int]:
n = len(dtstr)
tzinfo_pos = 0
tzsign = 0
while tzinfo_pos < n:
c = dtstr[tzinfo_pos]
if c == "+":
tzsign = 1
break
if c == "-":
tzsign = -1
break
tzinfo_pos += 1
hour, minute, second, microsecond = _parse_hh_mm_ss_ff(dtstr[:tzinfo_pos])
if tzinfo_pos == n:
return hour, minute, second, microsecond, 0, 0
tzlen = n - tzinfo_pos
if not (tzlen == 6 or tzlen == 9 or tzlen == 16):
_isoformat_error(dtstr)
tzhour, tzminute, tzsecond, tzmicrosecond = _parse_hh_mm_ss_ff(
dtstr[tzinfo_pos + 1 :]
)
tzoffset = tzsign * ((tzhour * 3600) + (tzminute * 60) + tzsecond)
tzmicrosecond *= tzsign
return hour, minute, second, microsecond, tzoffset, tzmicrosecond
def _format_ctime(
year: int, month: int, day: int, hours: int, minutes: int, seconds: int
) -> str:
DAY_NAMES = ("Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun")
MONTH_NAMES = (
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
)
wday = _weekday(year, month, day)
return f"{DAY_NAMES[wday]} {MONTH_NAMES[month - 1]} {str(day).rjust(2)} {str(hours).zfill(2)}:{str(minutes).zfill(2)}:{str(seconds).zfill(2)} {str(year).zfill(4)}"
def _utc_to_seconds(
year: int, month: int, day: int, hour: int, minute: int, second: int
) -> int:
if year < MINYEAR or year > MAXYEAR:
raise ValueError(f"year {year} is out of range")
ordinal = _ymd_to_ord(year, month, day)
return ((ordinal * 24 + hour) * 60 + minute) * 60 + second
def _round_half_even(x: float) -> float:
from math import fabs
rounded = x.__round__()
if fabs(x - rounded) == 0.5:
rounded = 2.0 * (x / 2.0).__round__()
return rounded
################
# core classes #
################
@tuple
class timedelta:
min: ClassVar[timedelta] = timedelta._new(-9223372036854775808)
max: ClassVar[timedelta] = timedelta._new(9223372036854775807)
resolution: ClassVar[timedelta] = timedelta(microseconds=1)
_microseconds: int
def _new(microseconds: int) -> timedelta:
return (microseconds,)
@inline
def _accum(sofar: int, leftover: float, num: int, factor: int) -> Tuple[int, float]:
sofar += num * factor
return sofar, leftover
@inline
def _accum(
sofar: int, leftover: float, num: float, factor: int
) -> Tuple[int, float]:
from math import modf
fracpart, intpart = modf(num)
prod = int(intpart) * factor
s = sofar + prod
if fracpart == 0.0:
return s, leftover
dnum = factor * fracpart
fracpart, intpart = modf(dnum)
y = s + int(intpart)
return y, leftover + fracpart
# override default constructor
def __new__(days: int) -> timedelta:
return timedelta(days, 0)
def __new__(
days: float = 0,
seconds: float = 0,
microseconds: float = 0,
milliseconds: float = 0,
minutes: float = 0,
hours: float = 0,
weeks: float = 0,
) -> timedelta:
us = 0
leftover = 0.0
us, leftover = timedelta._accum(us, leftover, days, 24 * 60 * 60 * 1000000)
us, leftover = timedelta._accum(us, leftover, seconds, 1000000)
us, leftover = timedelta._accum(us, leftover, microseconds, 1)
us, leftover = timedelta._accum(us, leftover, milliseconds, 1000)
us, leftover = timedelta._accum(us, leftover, minutes, 60 * 1000000)
us, leftover = timedelta._accum(us, leftover, hours, 60 * 60 * 1000000)
us, leftover = timedelta._accum(us, leftover, weeks, 7 * 24 * 60 * 60 * 1000000)
if leftover:
from math import fabs
whole_us = leftover.__round__()
if fabs(whole_us - leftover) == 0.5:
is_odd = us & 1
whole_us = 2.0 * ((leftover + is_odd) * 0.5).__round__() - is_odd
us += int(whole_us)
return (us,)
@property
def days(self) -> int:
days, seconds, microseconds = _normalize_d_s_us(0, 0, self._microseconds)
return days
@property
def seconds(self) -> int:
days, seconds, microseconds = _normalize_d_s_us(0, 0, self._microseconds)
return seconds
@property
def microseconds(self) -> int:
days, seconds, microseconds = _normalize_d_s_us(0, 0, self._microseconds)
return microseconds
def __repr__(self) -> str:
days, seconds, microseconds = _normalize_d_s_us(0, 0, self._microseconds)
if days == 0 and seconds == 0 and microseconds == 0:
return "timedelta(0)"
v = []
if days:
v.append(f"days={days}")
if seconds:
v.append(f"seconds={seconds}")
if microseconds:
v.append(f"microseconds={microseconds}")
return f"timedelta({', '.join(v)})"
def __str__(self) -> str:
days, seconds, us = _normalize_d_s_us(0, 0, self._microseconds)
minutes, seconds = _divmod(seconds, 60)
hours, minutes = _divmod(minutes, 60)
if days:
if us:
return f"{days} day{'' if days == 1 or days == -1 else 's'}, {hours}:{str(minutes).zfill(2)}:{str(seconds).zfill(2)}.{str(us).zfill(6)}"
else:
return f"{days} day{'' if days == 1 or days == -1 else 's'}, {hours}:{str(minutes).zfill(2)}:{str(seconds).zfill(2)}"
else:
if us:
return f"{hours}:{str(minutes).zfill(2)}:{str(seconds).zfill(2)}.{str(us).zfill(6)}"
else:
return f"{hours}:{str(minutes).zfill(2)}:{str(seconds).zfill(2)}"
def __add__(self, other: timedelta) -> timedelta:
return timedelta._new(self._microseconds + other._microseconds)
def __sub__(self, other: timedelta) -> timedelta:
return timedelta._new(self._microseconds - other._microseconds)
def __mul__(self, other: int) -> timedelta:
return timedelta._new(self._microseconds * other)
def __rmul__(self, other: int) -> timedelta:
return self * other
def __mul__(self, other: float) -> timedelta:
return timedelta._new(int(_round_half_even(self._microseconds * other)))
def __rmul__(self, other: float) -> timedelta:
return self * other
def __truediv__(self, other: timedelta) -> float:
return self._microseconds / other._microseconds
def __truediv__(self, other: float) -> timedelta:
return timedelta._new(int(_round_half_even(self._microseconds / other)))
def __truediv__(self, other: int) -> timedelta:
return self / float(other)
def __floordiv__(self, other: timedelta) -> int:
return int((self._microseconds / other._microseconds).__floor__())
def __floordiv__(self, other: int) -> timedelta:
return timedelta._new(self._microseconds // other)
def __mod__(self, other: timedelta) -> timedelta:
n = self._microseconds
M = other._microseconds
m = self._microseconds % other._microseconds
return timedelta._new(((n % M) + M) % M)
def __divmod__(self, other: timedelta) -> Tuple[int, timedelta]:
return self // other, self % other
def __pos__(self) -> timedelta:
return self
def __neg__(self) -> timedelta:
return timedelta._new(-self._microseconds)
def __abs__(self) -> timedelta:
return timedelta._new(abs(self._microseconds))
def __eq__(self, other: timedelta) -> bool:
return self._microseconds == other._microseconds
def __ne__(self, other: timedelta) -> bool:
return self._microseconds != other._microseconds
def __lt__(self, other: timedelta) -> bool:
return self._microseconds < other._microseconds
def __le__(self, other: timedelta) -> bool:
return self._microseconds <= other._microseconds
def __gt__(self, other: timedelta) -> bool:
return self._microseconds > other._microseconds
def __ge__(self, other: timedelta) -> bool:
return self._microseconds >= other._microseconds
def __bool__(self) -> bool:
return bool(self._microseconds)
def total_seconds(self) -> float:
return self._microseconds / 1e6
@tuple
class IsoCalendarDate:
year: int
week: int
weekday: int
def __repr__(self) -> str:
return f"IsoCalendarDate(year={self.year}, week={self.week}, weekday={self.weekday})"
@tuple
class date:
min: ClassVar[date] = date(MINYEAR, 1, 1)
max: ClassVar[date] = date(MAXYEAR, 12, 31)
resolution: ClassVar[timedelta] = timedelta(days=1)
_value: UInt[32]
def __new__(year: int, month: int, day: int) -> date:
_check_date_args(year, month, day)
v = (year << 16) | (month << 8) | day
return date(UInt[32](v))
@property
def year(self) -> int:
v = int(self._value)
return v >> 16
@property
def month(self) -> int:
v = int(self._value)
return (v >> 8) & 0xFF
@property
def day(self) -> int:
v = int(self._value)
return v & 0xFF
def __repr__(self) -> str:
return f"date(year={self.year}, month={self.month}, day={self.day})"
def today() -> date:
from time import time as ttime
return date.fromtimestamp(ttime())
def fromtimestamp(timestamp) -> date:
ts = int(timestamp)
tm = localtime(ts)
return date(tm.tm_year, tm.tm_mon, tm.tm_mday)
def fromordinal(ordinal: int) -> date:
return date(*_ord_to_ymd(ordinal))
def fromisoformat(date_string: str) -> date:
return date(*_parse_isoformat_date(date_string))
def fromisocalendar(year, week, day) -> date:
if year < MINYEAR or year > MAXYEAR:
raise ValueError(f"Year is out of range: {year}")
if week <= 0 or week >= 53:
out_of_range = True
if week == 53:
first_weekday = _weekday(year, 1, 1)
if first_weekday == 3 or (first_weekday == 2 and _is_leap(year)):
out_of_range = False
if out_of_range:
raise ValueError(f"Invalid week: {week}")
if day <= 0 or day >= 8:
raise ValueError(f"Invalid day: {day} (range is [1, 7])")
day_1 = _iso_week1_monday(year)
month = week
day_offset = (month - 1) * 7 + day - 1
return date(*_ord_to_ymd(day_1 + day_offset))
def __add__(self, other: timedelta) -> date:
days, seconds, microseconds = _normalize_d_s_us(0, 0, other._microseconds)
day = self.day + days
return date(*_normalize_date(self.year, self.month, day))
def __sub__(self, other: timedelta) -> date:
days, seconds, microseconds = _normalize_d_s_us(0, 0, other._microseconds)
day = self.day - days
return date(*_normalize_date(self.year, self.month, day))
def __sub__(self, other: date) -> timedelta:
left_ord = _ymd_to_ord(self.year, self.month, self.day)
right_ord = _ymd_to_ord(other.year, other.month, other.day)
return timedelta(days=left_ord - right_ord)
def __eq__(self, other: date) -> bool:
return self._value == other._value
def __ne__(self, other: date) -> bool:
return self._value != other._value
def __lt__(self, other: date) -> bool:
return self._value < other._value
def __le__(self, other: date) -> bool:
return self._value <= other._value
def __gt__(self, other: date) -> bool:
return self._value > other._value
def __ge__(self, other: date) -> bool:
return self._value >= other._value
def __bool__(self) -> bool:
return True
def replace(self, year: int = -1, month: int = -1, day: int = -1) -> date:
if year == -1:
year = self.year
if month == -1:
month = self.month
if day == -1:
day = self.day
return date(year, month, day)
def timetuple(self) -> struct_time:
yday = self.toordinal() - date(self.year, 1, 1).toordinal() + 1
return struct_time(
self.year, self.month, self.day, 0, 0, 0, self.weekday(), yday, -1
)
def toordinal(self) -> int:
return _ymd_to_ord(self.year, self.month, self.day)
def weekday(self) -> int:
return _weekday(self.year, self.month, self.day)
def isoweekday(self) -> int:
return self.weekday() + 1
def isocalendar(self) -> IsoCalendarDate:
year = self.year
week1_monday = _iso_week1_monday(year)
today = _ymd_to_ord(year, self.month, self.day)
week, day = _divmod(today - week1_monday, 7)
if week < 0:
year -= 1
week1_monday = _iso_week1_monday(year)
week, day = _divmod(today - week1_monday, 7)
elif week >= 52 and today >= _iso_week1_monday(year + 1):
year += 1
week = 0
return IsoCalendarDate(year, week + 1, day + 1)
def isoformat(self) -> str:
return f"{str(self.year).zfill(4)}-{str(self.month).zfill(2)}-{str(self.day).zfill(2)}"
def __str__(self) -> str:
return self.isoformat()
def ctime(self) -> str:
return _format_ctime(self.year, self.month, self.day, 0, 0, 0)
# strftime() / __format__() not supported
@tuple
class time:
min: ClassVar[time] = time(0, 0, 0, 0)
max: ClassVar[time] = time(23, 59, 59, 999999)
resolution: ClassVar[timedelta] = timedelta(microseconds=1)
_value: int
def __new__(
hour: int = 0, minute: int = 0, second: int = 0, microsecond: int = 0
) -> time:
_check_time_args(hour, minute, second, microsecond)
v = (hour << 40) | (minute << 32) | (second << 24) | microsecond
return (v,)
@property
def hour(self) -> int:
v = self._value
return v >> 40
@property
def minute(self) -> int:
v = self._value
return (v >> 32) & 0xFF
@property
def second(self) -> int:
v = self._value
return (v >> 24) & 0xFF
@property
def microsecond(self) -> int:
v = self._value
return v & 0xFFFFFF
def __repr__(self) -> str:
h, m, s, us = self.hour, self.minute, self.second, self.microsecond
v = []
v.append(f"hour={h}")
v.append(f"minute={m}")
if s or us:
v.append(f"second={s}")
if us:
v.append(f"microsecond={us}")
return f"time({', '.join(v)})"
def __str__(self) -> str:
return self.isoformat()
def __bool__(self) -> bool:
return True
def fromisoformat(time_string: str) -> time:
(
hour,
minute,
second,
microsecond,
tzoffset,
tzmicrosecond,
) = _parse_isoformat_time(time_string)
# TODO: deal with timezone
return time(hour, minute, second, microsecond)
def replace(
self, hour: int = -1, minute: int = -1, second: int = -1, microsecond: int = -1
) -> time:
if hour == -1:
hour = self.hour
if second == -1:
second = self.second
if minute == -1:
minute = self.minute
if microsecond == -1:
microsecond = self.microsecond
return time(hour, minute, second, microsecond)
def isoformat(self, timespec: Static[str] = "auto") -> str:
hh = str(self.hour).zfill(2)
mm = str(self.minute).zfill(2)
ss = str(self.second).zfill(2)
us = str(self.microsecond).zfill(6)
ms = str(self.microsecond // 1000).zfill(3)
if timespec == "auto":
if self.microsecond:
return f"{hh}:{mm}:{ss}.{us}"
else:
return f"{hh}:{mm}:{ss}"
elif timespec == "hours":
return hh
elif timespec == "minutes":
return f"{hh}:{mm}"
elif timespec == "seconds":
return f"{hh}:{mm}:{ss}"
elif timespec == "milliseconds":
return f"{hh}:{mm}:{ss}.{ms}"
elif timespec == "microseconds":
return f"{hh}:{mm}:{ss}.{us}"
else:
compile_error(
"invalid timespec; valid ones are 'auto', 'hours', 'minutes', 'seconds', 'milliseconds' and 'microseconds'"
)
@tuple
class datetime:
min: ClassVar[datetime] = datetime(MINYEAR, 1, 1)
max: ClassVar[datetime] = datetime(MAXYEAR, 12, 31, 23, 59, 59, 999999)
resolution: ClassVar[timedelta] = timedelta(microseconds=1)
_time: time
_date: date
def __new__(
year: int,
month: int,
day: int,
hour: int = 0,
minute: int = 0,
second: int = 0,
microsecond: int = 0,
) -> datetime:
return datetime(time(hour, minute, second, microsecond), date(year, month, day))
def date(self) -> date:
return self._date
def time(self) -> time:
return self._time
@property
def year(self) -> int:
return self.date().year
@property
def month(self) -> int:
return self.date().month
@property
def day(self) -> int:
return self.date().day
@property
def hour(self) -> int:
return self.time().hour
@property
def minute(self) -> int:
return self.time().minute
@property
def second(self) -> int:
return self.time().second
@property
def microsecond(self) -> int:
return self.time().microsecond
def __repr__(self) -> str:
return f"datetime(year={self.year}, month={self.month}, day={self.day}, hour={self.hour}, minute={self.minute}, second={self.second}, microsecond={self.microsecond})"
def __str__(self) -> str:
return self.isoformat(sep=" ")
def _from_timet_and_us(timet, us) -> datetime:
tm = localtime(timet)
year = tm.tm_year
month = tm.tm_mon
day = tm.tm_mday
hour = tm.tm_hour
minute = tm.tm_min
second = min(59, tm.tm_sec)
# TODO: timezone adjustments
return datetime(year, month, day, hour, minute, second, us)
def today() -> datetime:
from time import time as ttime
return datetime.fromtimestamp(ttime())
# TODO: support timezone
def now() -> datetime:
return datetime.today()
def utcnow() -> datetime:
return datetime.now()
# TODO: support timezone
def fromtimestamp(timestamp) -> datetime:
from time import _time_to_timeval, _ROUND_HALF_EVEN
timet, us = _time_to_timeval(float(timestamp), _ROUND_HALF_EVEN)
return datetime._from_timet_and_us(timet, us)
def utcfromtimestamp(timestamp) -> datetime:
return datetime.fromtimestamp(timestamp)
def fromordinal(ordinal: int) -> datetime:
return datetime.combine(date.fromordinal(ordinal), time())
# TODO: support timezone
def combine(date: date, time: time) -> datetime:
return datetime(time, date)
def fromisoformat(date_string: str) -> datetime:
time_string = "" if len(date_string) < 10 else date_string[:10]
year, month, day = _parse_isoformat_date(time_string)
if len(date_string) == 10:
return datetime(year=year, month=month, day=day)
date_string = "" if len(date_string) < 12 else date_string[11:]
hour, minute, second, microsecond = _parse_hh_mm_ss_ff(date_string)
return datetime(
year=year,
month=month,
day=day,
hour=hour,
minute=minute,
second=second,
microsecond=microsecond,
)
def fromisocalendar(year: int, week: int, day: int) -> datetime:
return datetime.combine(date.fromisocalendar(year, week, day), time())
def __add__(self, other: timedelta) -> datetime:
td_days, td_seconds, td_microseconds = _normalize_d_s_us(
0, 0, other._microseconds
)
year = self.year
month = self.month
day = self.day + td_days
hour = self.hour
minute = self.minute
second = self.second + td_seconds
microsecond = self.microsecond + td_microseconds
return datetime(
*_normalize_datetime(year, month, day, hour, minute, second, microsecond)
)
def __sub__(self, other: timedelta) -> datetime:
td_days, td_seconds, td_microseconds = _normalize_d_s_us(
0, 0, other._microseconds
)
year = self.year
month = self.month
day = self.day - td_days
hour = self.hour
minute = self.minute
second = self.second - td_seconds
microsecond = self.microsecond - td_microseconds
return datetime(
*_normalize_datetime(year, month, day, hour, minute, second, microsecond)
)
def __sub__(self, other: datetime) -> timedelta:
delta_d = _ymd_to_ord(self.year, self.month, self.day) - _ymd_to_ord(
other.year, other.month, other.day
)
delta_s = (
(self.hour - other.hour) * 3600
+ (self.minute - other.minute) * 60
+ (self.second - other.second)
)
delta_us = self.microsecond - other.microsecond
return timedelta(days=delta_d, seconds=delta_s, microseconds=delta_us)
def __eq__(self, other: datetime) -> bool:
return self.date() == other.date() and self.time() == other.time()
def __ne__(self, other: datetime) -> bool:
return not (self == other)
def __lt__(self, other: datetime) -> bool:
return (self.date(), self.time()) < (other.date(), other.time())
def __le__(self, other: datetime) -> bool:
return (self.date(), self.time()) <= (other.date(), other.time())
def __gt__(self, other: datetime) -> bool:
return (self.date(), self.time()) > (other.date(), other.time())
def __ge__(self, other: datetime) -> bool:
return (self.date(), self.time()) >= (other.date(), other.time())
def __bool__(self) -> bool:
return True
def replace(
self,
year: int = -1,
month: int = -1,
day: int = -1,
hour: int = -1,
minute: int = -1,
second: int = -1,
microsecond: int = -1,
) -> datetime:
return datetime(
self.time().replace(hour, minute, second, microsecond),
self.date().replace(year, month, day),
)
def timetuple(self) -> struct_time:
yday = self.toordinal() - date(self.year, 1, 1).toordinal() + 1
return struct_time(
self.year,
self.month,
self.day,
self.hour,
self.minute,
self.second,
self.weekday(),
yday,
-1,
)
def utctimetuple(self) -> struct_time:
return self.timetuple()
def toordinal(self) -> int:
return self.date().toordinal()
def timestamp(self) -> float:
return (self - datetime(1970, 1, 1)).total_seconds()
def weekday(self) -> int:
return self.date().weekday()
def isoweekday(self) -> int:
return self.date().isoweekday()
def isocalendar(self) -> IsoCalendarDate:
return self.date().isocalendar()
def isoformat(self, sep: str = "T", timespec: Static[str] = "auto") -> str:
date_part = str(self.date())
time_part = self.time().isoformat(timespec=timespec)
return f"{date_part}{sep}{time_part}"
def ctime(self) -> str:
date = self.date()
time = self.time()
return _format_ctime(
date.year, date.month, date.day, time.hour, time.minute, time.second
)
@extend
class timedelta:
def __add__(self, other: date) -> date:
return other + self
def __add__(self, other: datetime) -> datetime:
return other + self
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