copy.txt

C:\Users\Himanshu>python
Python 3.6.3 |Anaconda, Inc.| (default, Oct 15 2017, 03:27:45) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import datetime
>>> int(datetime.datetime.utcnow().timestamp())
1586350824
>>> datetime.datetime.utcnow()
datetime.datetime(2020, 4, 8, 18, 30, 41, 963314)
>>> import time
>>> int(round(time.time() * 1000))
1586370858457
>>> int(datetime.datetime.utcnow().timestamp())
1586351066
>>> int(datetime.datetime.utcnow().timestamp())
1586351134
>>> date_N_days_ago = datetime.now() - timedelta(days=N)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'datetime' has no attribute 'now'
>>> date_N_days_ago = datetime.datetime()-timedelta(days=10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Required argument 'year' (pos 1) not found
>>> date_N_days_ago = timedelta(days=10)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'timedelta' is not defined
>>> date_N_days_ago = datetime.timedelta(days=10)
>>> date_N_days_ago
datetime.timedelta(10)
>>> from datetime import datetime, timedelta
>>> date_N_days_ago = datetime.now() - timedelta(days=N)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'N' is not defined
>>> date_N_days_ago = datetime.now() - timedelta(days=10)
>>> print(datetime.now())
2020-04-09 11:00:32.996646
>>> print(date_N_days_ago)
2020-03-30 11:00:22.478015
>>> datetime_str = '09/19/18'
>>> datetime_object = datetime.strptime(datetime_str, '%m/%d/%y')
>>> datetime_object
datetime.datetime(2018, 9, 19, 0, 0)
>>> date_N_days_ago =  datetime_object -  timedelta(days=10)
>>> date_N_days_ago
datetime.datetime(2018, 9, 9, 0, 0)
>>> date_N_days_ago.strftime('%Y-%m-%d')
'2018-09-09'
>>>