mirror of
https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api.git
synced 2024-11-09 12:43:11 +00:00
53 lines
1.3 KiB
Python
53 lines
1.3 KiB
Python
from datetime import datetime, timezone
|
|
|
|
|
|
def ensure_tz_aware(dt: datetime) -> datetime:
|
|
"""
|
|
returns timezone-aware datetime
|
|
assumes utc on naive datetime input
|
|
"""
|
|
if dt.tzinfo is None:
|
|
# astimezone() is dangerous, it makes an implicit assumption that
|
|
# the time is localtime
|
|
dt = dt.replace(tzinfo=timezone.utc)
|
|
return dt
|
|
|
|
|
|
def ensure_tz_aware_strict(dt: datetime) -> datetime:
|
|
"""
|
|
returns timezone-aware datetime
|
|
raises error if input is a naive datetime
|
|
"""
|
|
if dt.tzinfo is None:
|
|
raise ValueError(
|
|
"no timezone in datetime (tz-aware datetime is required for this operation)",
|
|
dt,
|
|
)
|
|
return dt
|
|
|
|
|
|
def tzaware_parse_time(iso_timestamp: str) -> datetime:
|
|
"""
|
|
parse an iso8601 timestamp into timezone-aware datetime
|
|
assume utc if no timezone in stamp
|
|
example of timestamp:
|
|
2023-11-10T12:07:47.868788+00:00
|
|
|
|
"""
|
|
dt = datetime.fromisoformat(iso_timestamp)
|
|
dt = ensure_tz_aware(dt)
|
|
return dt
|
|
|
|
|
|
def tzaware_parse_time_strict(iso_timestamp: str) -> datetime:
|
|
"""
|
|
parse an iso8601 timestamp into timezone-aware datetime
|
|
raise an error if no timezone in stamp
|
|
example of timestamp:
|
|
2023-11-10T12:07:47.868788+00:00
|
|
|
|
"""
|
|
dt = datetime.fromisoformat(iso_timestamp)
|
|
dt = ensure_tz_aware_strict(dt)
|
|
return dt
|