Python - Add Date Stamp To Text File

Question

In Python v2, is there a way to get a date/time stamp and put it into creating a new text file?

IE: When I want to create a new text file and write the contents of my program to it, it will create a new text file with the time/date in it.

Thanks for any help.

Answer 1

import datetime

def timeStamped(fname, fmt='%Y-%m-%d-%H-%M-%S_{fname}'):
    return datetime.datetime.now().strftime(fmt).format(fname=fname)

with open(timeStamped('myfile.txt'),'w') as outf:
    outf.write('data!')

Answer 2

This will prepend a timestamp to the front of the filename:

from datetime import datetime

# define a timestamp format you like
FORMAT = '%Y%m%d%H%M%S'
path = 'foo.txt'
data = 'data to be written to the file\n'
new_path = '%s_%s' % (datetime.now().strftime(FORMAT), path)
open(new_path, 'w').write(data)