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I want to subtract n days from a file's timestamp, but it doesn't seem to be working. I have read this post, and I think I'm close.
This is an excerpt from my code:
import os, time
from datetime import datetime, timedelta
def processData1( pageFile ):
f = open(pageFile, "r")
page = f.read()
filedate = time.strftime('%m/%d/%Y', time.gmtime(os.path.getmtime(pageFile)))
print filedate
end_date = filedate - datetime.timedelta(days=10)
print end_date
Printing filedate works, so that date is read correctly from the files. It's the subtraction bit that doesn't seem to be working.
Desired output:
If filedate is 06/11/2013, print end_date should yield 06/01/2013.
437
For adding or subtracting Date, we use something called timedelta() function which can be found under the DateTime class. It is used to manipulate Date, and we can perform arithmetic operations on dates like adding or subtracting.
You can subtract a day from a python date using the timedelta object. You need to create a timedelta object with the amount of time you want to subtract. Then subtract it from the date.
To subtract days to a JavaScript Date object, use the setDate() method. Under that, get the current days and subtract days. JavaScript date setDate() method sets the day of the month for a specified date according to local time.
cleaned up import
from datetime import datetime, timedelta
start = '06/11/2013'
start = datetime.strptime(start, "%m/%d/%Y") #string to date
end = start - timedelta(days=10) # date - days
print start,end
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