Skip to content

call-date-fromtimestamp (DTZ012)#

Derived from the flake8-datetimez linter.

What it does#

Checks for usage of

Why is this bad?#

Python datetime objects can be naive or timezone-aware. While an aware object represents a specific moment in time, a naive object does not contain enough information to unambiguously locate itself relative to other datetime objects. Since this can lead to errors, it is recommended to always use timezone-aware objects. returns a naive datetime object. Instead, use datetime.datetime.fromtimestamp(ts, tz=) to return a timezone-aware object.


import datetime

Use instead:

import datetime

datetime.datetime.fromtimestamp(946684800, tz=datetime.timezone.utc)

Or, for Python 3.11 and later:

import datetime

datetime.datetime.fromtimestamp(946684800, tz=datetime.UTC)