Unix timestamp conversion

In a project I'm working on right now I have to convert between unix timestamps and datetime objects in Python.

It was really easy to find on the internet but I add a little note here anyway for my self the next time I need it :-)

import datetime
import time

def datetime_to_unixtime(dt):
    return time.mktime(dt.timetuple())+(dt.microsecond/1000000.0)

def unixtime_to_datetime(ut):
    return(datetime.datetime.fromtimestamp(float(ut)))

now = datetime.datetime.now()
print now
ut = datetime_to_unixtime(now)
print ut
dt = unixtime_to_datetime(ut)
print dt

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