How can you convert a string with varying length to datetime-CodePudding

I have a list that has strings with Y-M-D (eg. 2010-01-14) format, but some don't have the month and/or the day. I've tried doing it based on the length but it became long and messy. Is there an easy way to accomplish this?

CodePudding user response：

does this satisfy your needs: dateutil's parser with a default date, Ex:

from datetime import datetime
from dateutil import parser

for s in '2021', '2021-01', '2021-02-03':
    print(parser.parse(s, default=datetime(2021,1,1)))
    
2021-01-01 00:00:00
2021-01-01 00:00:00
2021-02-03 00:00:00