Using list comprehension and datetime to generate a list of times in python

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I am trying to create a list that is generated by using list comprehension that uses 1 minute increments. Then it would convert the dates/times into the ISO 8601 format. This is what I was thinking the solution would look like:

import datetime as dt

t1 = dt.datetime(2001, 10, 10, 0, 0, 0)

t2 = dt.datetime(2001, 10, 15, 0, 0, 0)

time = [t1 + dt.timedelta(minutes = x) for x in range((t2-t1).total_seconds()/60)]

isotime = time.isoformat()

Is this semi correct?

think this might be easier using pandas:

import pandas as pd
t1 = pd.to_datetime('2001-10-10 00:00:00')
t2 = pd.to_datetime('2001-10-15 00:00:00')
series = pd.date_range(t1,t2,freq='1min')
iso8601 = [t.strftime('%Y%m%dT%H:%M%SZ') for t in series]

output:

['20011010T00:0000Z', '20011010T00:0100Z', '20011010T00:0200Z', '20011010T00:0300Z', ... ,  
'20011014T23:5700Z', '20011014T23:5800Z', '20011014T23:5900Z', '20011015T00:0000Z']

Python: List Comprehension For Date and Time – stb-test-automation, Python: List Comprehension For Date and Time. [ create a list. '%02d:%02d' format to a two-digit number with a leading zero. current_timestamp+timedelta(minutes=10*x)).hour. for x in xrange(0,24*60/10) Here's a slightly different answer building off of S.Lott's answer that gives a list of dates between two dates start and end. In the example below, from the start of 2017 to today. start = datetime.datetime(2017,1,1) end = datetime.datetime.today() daterange = [start + datetime.timedelta(days=x) for x in range(0, (end-start).days)]

You need to apply isoformat on every item in the time list:

isotime = [t.isoformat() for t in time]

Also note that range accepts only integers. You should change range((t2-t1).total_seconds()/60) to range(int((t2-t1).total_seconds()/60))

Though, the best thing is to use pandas as @Derek Eden suggested.

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Comments
  • What exactly are you trying to achieve? Can you post what you expect isotime to be?
  • Instead of asking us, why not print out the list and see?
  • Your solution does not work for me.
  • Since you have 5 days - are you looking for a list of 7200 entries?
  • I can use this as well since the boss doesn't care if I use pandas or not, thanks for the other method!!