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M Sai Kiran 2023-10-09 20:27:21 +05:30
parent 1ad67650ac
commit 9a30f4d5b5
2 changed files with 99 additions and 44 deletions
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90
python/datetime.py
View File

@ -1,5 +1,6 @@
from time import localtime, time as current_time
from datetime import datetime as dt, timedelta as td #internally using datetime , timedelta for __add__,__sub__
from time import localtime
class timedelta:
def __init__(self, days=0, seconds=0):
@ -9,30 +10,41 @@ class timedelta:
def __repr__(self):
return f"datetime.timedelta({self.days}, {self.seconds})"
def check(self, other, class_type):
if not isinstance(other, class_type):
raise NotImplementedError("incompatible types / not implemented")
def __eq__(self, other: 'timedelta') -> bool:
self.check(other, timedelta)
return (self.days, self.seconds) == (other.days, other.seconds)
def __lt__(self, other: 'timedelta') -> bool:
self.check(other, timedelta)
return (self.days, self.seconds) < (other.days, other.seconds)
def __le__(self, other: 'timedelta') -> bool:
self.check(other, timedelta)
return (self.days, self.seconds) <= (other.days, other.seconds)
def __gt__(self, other: 'timedelta') -> bool:
self.check(other, timedelta)
return (self.days, self.seconds) > (other.days, other.seconds)
def __ge__(self, other: 'timedelta') -> bool:
self.check(other, timedelta)
return (self.days, self.seconds) >= (other.days, other.seconds)
class timezone:
def __init__(self, delta: timedelta):
self._delta = delta
self.delta = delta
def __repr__(self):
return f"datetime.timezone({self._delta})"
return f"datetime.timezone({self.delta})"
class date:
def __init__(self, year: int, month: int=None, day: int=None):
def __init__(self, year: int, month: int = None, day: int = None):
self.year = year
self.month = month
self.day = day
@ -42,35 +54,37 @@ class date:
t = localtime()
return date(t.tm_year, t.tm_mon, t.tm_mday)
def check(self, other, class_type):
if not isinstance(other, class_type):
raise NotImplementedError("incompatible types / not implemented")
def __eq__(self, other: 'date') -> bool:
return self.year == other.year and self.month == other.month and self.day == other.day
self.check(other, date)
return (self.year, self.month, self.day) == (other.year, other.month, other.day)
def __lt__(self, other: 'date') -> bool:
self.check(other, date)
return (self.year, self.month, self.day) < (other.year, other.month, other.day)
def __le__(self, other: 'date') -> bool:
self.check(other, date)
return (self.year, self.month, self.day) <= (other.year, other.month, other.day)
def __gt__(self, other: 'date') -> bool:
self.check(other, date)
return (self.year, self.month, self.day) > (other.year, other.month, other.day)
def __ge__(self, other: 'date') -> bool:
self.check(other, date)
return (self.year, self.month, self.day) >= (other.year, other.month, other.day)
def __add__(self, other: 'timedelta') -> 'date':
new_date=dt(self.year,self.month,self.day)+td(other.days,other.seconds)
return date(new_date.year,new_date.month,new_date.day)
def __sub__(self, other: 'timedelta') -> 'date':
new_date=dt(self.year,self.month,self.day)-td(other.days,other.seconds)
return date(new_date.year,new_date.month,new_date.day)
def __str__(self):
return f"{self.year}-{self.month:02}-{self.day:02}"
def __repr__(self):
return f"datetime.date({self.year}, {self.month}, {self.day})"
class datetime(date):
def __init__(self, year: int, month: int = None, day: int = None, hour: int = None, minute: int = None, second: int = None, tzinfo: timezone = None):
super().__init__(year, month, day)
@ -91,6 +105,10 @@ class datetime(date):
t = localtime()
return datetime(t.tm_year, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec)
def check(self, other, class_type):
if not isinstance(other, class_type):
raise NotImplementedError("incompatible types / not implemented")
def __str__(self):
return f"{self.year}-{self.month:02}-{self.day:02} {self.hour:02}:{self.minute:02}:{self.second:02}"
@ -98,36 +116,34 @@ class datetime(date):
return f"datetime.datetime({self.year}, {self.month}, {self.day}, {self.hour}, {self.minute}, {self.second})"
def __eq__(self, other) -> bool:
return (self.year, self.month, self.day, self.hour, self.minute, self.second) == \
(other.year, other.month, other.day, other.hour, other.minute, other.second)
self.check(other, datetime)
return (self.year, self.month, self.day, self.hour, self.minute, self.second) ==\
(other.year, other.month, other.day,
other.hour, other.minute, other.second)
def __lt__(self, other) -> bool:
return (self.year, self.month, self.day, self.hour, self.minute, self.second) < \
(other.year, other.month, other.day, other.hour, other.minute, other.second)
self.check(other, datetime)
return (self.year, self.month, self.day, self.hour, self.minute, self.second) <\
(other.year, other.month, other.day,
other.hour, other.minute, other.second)
def __le__(self, other) -> bool:
return (self.year, self.month, self.day, self.hour, self.minute, self.second) <= \
(other.year, other.month, other.day, other.hour, other.minute, other.second)
self.check(other, datetime)
return (self.year, self.month, self.day, self.hour, self.minute, self.second) <=\
(other.year, other.month, other.day,
other.hour, other.minute, other.second)
def __gt__(self, other) -> bool:
return (self.year, self.month, self.day, self.hour, self.minute, self.second) > \
(other.year, other.month, other.day, other.hour, other.minute, other.second)
self.check(other, datetime)
return (self.year, self.month, self.day, self.hour, self.minute, self.second) >\
(other.year, other.month, other.day,
other.hour, other.minute, other.second)
def __ge__(self, other) -> bool:
return (self.year, self.month, self.day, self.hour, self.minute, self.second) >= \
(other.year, other.month, other.day, other.hour, other.minute, other.second)
def __add__(self, other: 'timedelta') -> 'datetime':
new_datetime = dt(self.year, self.month, self.day, self.hour, self.minute, self.second) + td(days=other.days, seconds=other.seconds)
return datetime(new_datetime.year, new_datetime.month, new_datetime.day, new_datetime.hour, new_datetime.minute, new_datetime.second)
def __sub__(self, other: 'timedelta') -> 'datetime':
total_seconds = self.second + other.seconds + other.days * 86400
new_datetime = self - timedelta(seconds=total_seconds)
return new_datetime
self.check(other, datetime)
return (self.year, self.month, self.day, self.hour, self.minute, self.second) >=\
(other.year, other.month, other.day,
other.hour, other.minute, other.second)
def timestamp(self) -> float:
delta = self - datetime(1970, 1, 1)
return delta.total_seconds()
return self.now()

39
tests/80_datetime.py Normal file
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@ -0,0 +1,39 @@
import datetime
def test_timedelta():
assert datetime.timedelta(days=1) == datetime.timedelta(days=1)
assert datetime.timedelta(days=1) != datetime.timedelta(days=2)
assert datetime.timedelta(days=1, seconds=1) >= datetime.timedelta(days=1)
assert datetime.timedelta(days=0, seconds=1) <= datetime.timedelta(days=1)
assert datetime.timedelta(days=1, seconds=1) < datetime.timedelta(days=2)
assert datetime.timedelta(days=1, seconds=1) > datetime.timedelta(days=0)
def test_date():
assert datetime.date(2023, 8, 5) == datetime.date(2023, 8, 5)
assert datetime.date(2023, 8, 5) != datetime.date(2023, 8, 6)
assert datetime.date(2024, 8, 5) >= datetime.date(2023, 8, 6)
assert datetime.date(2023, 8, 5) <= datetime.date(2023, 8, 6)
assert datetime.date(2024, 8, 5) > datetime.date(2023, 8, 6)
assert datetime.date(2023, 8, 5) < datetime.date(2024, 8, 6)
def test_datetime():
assert datetime.datetime(
2023, 8, 5, 12, 0, 0) == datetime.datetime(2023, 8, 5, 12, 0, 0)
assert datetime.datetime(
2023, 8, 5, 12, 0, 0) != datetime.datetime(2023, 8, 5, 12, 1, 0)
assert datetime.datetime(
2023, 8, 5, 12, 0, 0) >= datetime.datetime(2023, 8, 5, 12, 0, 0)
assert datetime.datetime(
2023, 8, 5, 12, 30, 0) > datetime.datetime(2023, 8, 5, 12, 1, 0)
assert datetime.datetime(
2023, 8, 5, 12, 0, 0) < datetime.datetime(2023, 8, 5, 12, 1, 0)
assert datetime.datetime(
2023, 8, 5, 12, 0, 0) <= datetime.datetime(2023, 8, 5, 12, 1, 0)
test_timedelta()
test_date()
test_datetime()