How to parse times that may or may not have decimal seconds in Python (2.7)?

Question

How can I have strptime optionally use the decimal seconds when parsing? I'm looking for a concise way to parse both %Y%m%d-%H:%M:%S.%f and %Y%m%d-%H:%M:%S.

With the %f I recive error:

ValueError: time data '20130807-13:42:07' does not match format '%Y%m%d-%H:%M:%S.%f'

Answer 1

t = t.rsplit('.', 1)[0]
time.strptime('%Y%m%d-%H:%M:%S.%f', t)

Or just make sure to add a decimal:

if not '.' in t:
    t += '.0'
time.strptime('%Y%m%d-%H:%M:%S.%f', t)

This should do it.