Rounding datetime object to nearest second (removing microseconds)

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examples/datetime/datetime_rounding_seconds.py

import datetime

# Old solution
now = datetime.datetime.now()
rounded = now - datetime.timedelta(microseconds=now.microsecond)
print(now)     # 2019-11-01 07:11:19.930974
print(rounded) # 2019-11-01 07:11:19

# A simpler solution
ts = datetime.datetime.now().replace(microsecond=0)
print(ts)      # 2019-11-01 07:11:20