ValueError: time data does not match format, optional milliseconds [duplicate]

Question

Right now I have:

timestamp = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S.%f')

This works great unless I'm converting a string that doesn't have the microseconds. How can I specify that the microseconds are optional (and should be considered 0 if they aren't in the string)?

Answer 1

You could use a try/except block:

try:
    timestamp = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S.%f')
except ValueError:
    timestamp = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S')

Answer 2

What about just appending it if it doesn't exist?

if '.' not in date_string:
    date_string = date_string + '.0'

timestamp = datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S.%f')