How to convert pendulum to datetime.datetime type?

Question

In current part of system pendulum v1.4 is used, but with croniter it causing error described in https://github.com/sdispater/pendulum/issues/214

This works fine with datetime.datetime type and i still have to stay with pendulum v1.4.

So i am looking for solution how to efficiently to convert pendulum to datetime.datetime type ?

Already tried formatting pendulum as string and parsing using dateutil.parser.

Answer 1

Another take on this:

>>> from datetime import datetime
>>> import pendulum
>>> datetime.fromtimestamp(pendulum.now().timestamp(), pendulum.tz.UTC)
datetime.datetime(2021, 1, 12, 11, 41, 32, 387753, tzinfo=Timezone('UTC'))

Usually there should be no need to do this since pendulum's DateTime inherits from datetime.datetime. Any code working with stdlib's datetime's should work with pendulum's as well.

Answer 2

pendulum==1.4.0 objects have the protected _datetime member:

import pendulum

p = pendulum.now()
p._datetime

This will give you something like

datetime.datetime(2021, 5, 24, 12, 44, 11, 812937, tzinfo=<TimezoneInfo [America/New_York, EDT, -4:00:00, DST]>)

Another way is as follows: and works for pendulum==1.4.0 and more recent pendulum==2.1.2

import pendulum
from datetime import datetime

p = pendulum.now()
datetime_string = p.to_datetime_string()
datetime.fromisoformat(datetime_string)

which will give

datetime.datetime(2021, 5, 24, 12, 44, 11)

Answer 3

I couldn't find a Pendulum helper for this either. So, back to basics:

import datetime as dt

tz_info = dateutil.tz.gettz(zone_name)
pend_time = pendulum.datetime(...)

dt_time = dt.datetime(
    pend_time.year,
    pend_time.month,
    pend_time.day,
    pend_time.hour,
    pend_time.minute,
    pend_time.second,
    pend_time.microsecond,
).astimezone(tz_info)

Note the use of dateutil. As of Python 3.6, the tzinfo documentation recommends dateutil.tz rather than pytz as an IANA time zone provider.

Answer 4

The following code works for me:

In [1]: import pendulum

In [2]: import datetime

In [3]: pdt = pendulum.now()

In [4]: datetime.datetime.fromisoformat(pdt.to_iso8601_string())
Out[4]: datetime.datetime(2022, 2, 22, 14, 29, 36, 812772,tzinfo=datetime.timezone(datetime.timedelta(seconds=28800)))