CODEWITHSUNDEEP
pythonpython-3.x
Nodak
Nodak

Reputation: 979

strptime, format and saving the milliseconds

My gps, via gpsd, spits back a time in the format

time_string = '1582-10-04T12:34:56.000Z'

I can turn this string into a timezone aware datetime object with

from datetime import datetime, timedelta, timezone
timeformat = '%Y-%m-%dT%H:%M:%S.000Z'  # ISO8601
datetime.strptime(time_string, timeformat).replace(tzinfo=(timezone(timedelta(0))))

...which is cool. I can than manipulate the object, add, subtract, change timezones, calculate a time delta inclusive of a time zone change, etc..

The problem is occasionally some aspect of the application will return a time string with milliseconds attached.

time_string = '1582-10-04T12:34:56.123Z'

...and all hell breaks loose.

.strip('Z') doesn't do it.

timeformat = '%Y-%m-%dT%H:%M:%S <--without .000 or .000Z does not work either as neither b.strip('.000Z') or permutations thereof.

I can't seem to find an elegant way to save the millisecond(s), if, and when, they occur, and parse the string into a time zone aware datetime object.

Upvotes: 0

Views: 4924

Answers (1)

Neitsa
Neitsa

Reputation: 8176

What about replacing the 000 by %f?

from datetime import datetime, timedelta, timezone
time_string = '1582-10-04T12:34:56.123Z'
timeformat = '%Y-%m-%dT%H:%M:%S.%fZ'
datetime.strptime(time_string, timeformat).replace(tzinfo=(timezone(timedelta(0))))

Output:

datetime.datetime(1582, 10, 4, 12, 34, 56, 123000, tzinfo=datetime.timezone.utc)

see strftime() and strptime() Behavior for %f format.

Upvotes: 2

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