Python: get datetime of last hour

I want to get the date time object for last hour. Lets say the sys time is "2011-9-28 06:11:30" I want to get the output as "2011-9-28 05" #{06 - 1 hour}

I used:

    lastHourDateTime = date.today() - timedelta(hours = 1)
    print lastHourDateTime.strftime('%Y-%m-%d %H:%M:%S')

However, my output is not开发者_运维问答 showing the time part at all. where am I going wrong?

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Date doesn't have the hour - use datetime:

from datetime import datetime, timedelta
last_hour_date_time = datetime.now() - timedelta(hours = 1)
print(last_hour_date_time.strftime('%Y-%m-%d %H:%M:%S'))

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This works for me:

import datetime

lastHourDateTime = datetime.datetime.now() - datetime.timedelta(hours = 1)
print(lastHourDateTime.strftime('%Y-%m-%d %H'))

# prints "2011-09-28 12" which is the time one hour ago in Central Europe

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You can achieve the same goal using pandas:

import pandas as pd
pd.Timestamp.now() - pd.Timedelta('1 hours')