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zerver/lib: Use python 3 syntax for typing.

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With tweaks by tabbott to fix line spacing.
This commit is contained in:
rht
2017-11-05 11:15:10 +01:00
committed by Tim Abbott
parent 4a07214725
commit 33b1a541d7
30 changed files with 328 additions and 544 deletions
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24
zerver/lib/timestamp.py
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@@ -5,48 +5,40 @@ from django.utils.timezone import utc as timezone_utc
class TimezoneNotUTCException(Exception):
pass
def verify_UTC(dt):
# type: (datetime.datetime) -> None
def verify_UTC(dt: datetime.datetime) -> None:
if dt.tzinfo is None or dt.tzinfo.utcoffset(dt) != timezone_utc.utcoffset(dt):
raise TimezoneNotUTCException("Datetime %s does not have a UTC timezone." % (dt,))
def convert_to_UTC(dt):
# type: (datetime.datetime) -> datetime.datetime
def convert_to_UTC(dt: datetime.datetime) -> datetime.datetime:
if dt.tzinfo is None:
return dt.replace(tzinfo=timezone_utc)
return dt.astimezone(timezone_utc)
def floor_to_hour(dt):
# type: (datetime.datetime) -> datetime.datetime
def floor_to_hour(dt: datetime.datetime) -> datetime.datetime:
verify_UTC(dt)
return datetime.datetime(*dt.timetuple()[:4]) \
.replace(tzinfo=timezone_utc)
def floor_to_day(dt):
# type: (datetime.datetime) -> datetime.datetime
def floor_to_day(dt: datetime.datetime) -> datetime.datetime:
verify_UTC(dt)
return datetime.datetime(*dt.timetuple()[:3]) \
.replace(tzinfo=timezone_utc)
def ceiling_to_hour(dt):
# type: (datetime.datetime) -> datetime.datetime
def ceiling_to_hour(dt: datetime.datetime) -> datetime.datetime:
floor = floor_to_hour(dt)
if floor == dt:
return floor
return floor + datetime.timedelta(hours=1)
def ceiling_to_day(dt):
# type: (datetime.datetime) -> datetime.datetime
def ceiling_to_day(dt: datetime.datetime) -> datetime.datetime:
floor = floor_to_day(dt)
if floor == dt:
return floor
return floor + datetime.timedelta(days=1)
def timestamp_to_datetime(timestamp):
# type: (float) -> datetime.datetime
def timestamp_to_datetime(timestamp: float) -> datetime.datetime:
return datetime.datetime.fromtimestamp(float(timestamp), tz=timezone_utc)
def datetime_to_timestamp(dt):
# type: (datetime.datetime) -> int
def datetime_to_timestamp(dt: datetime.datetime) -> int:
verify_UTC(dt)
return calendar.timegm(dt.timetuple())