How to calculate number of days between two given dates?

Question

If I have two dates (ex. \'8/18/2008\' and \'9/26/2008\'), what is the best way to get the number of days between these two dates?

Answer 1

Here are three ways to go with this problem :

from datetime import datetime

Now = datetime.now()
StartDate = datetime.strptime(str(Now.year) +'-01-01', '%Y-%m-%d')
NumberOfDays = (Now - StartDate)

print(NumberOfDays.days)                     # Starts at 0
print(datetime.now().timetuple().tm_yday)    # Starts at 1
print(Now.strftime('%j'))                    # Starts at 1