How to compare Last-Modified with http header and file last modification time?

Question

Python

>>> 
>>> r = requests.get('https://ya.ru')    
>>> 
>>> 
>>> r.headers['Last-Modified']
'Tue, 04 Sep 2018 07:46:09 GMT'

And file
touch /tmp/1.txt
How to compare file mtime with r.headers['Last-Modified'] and understand who is older?

Answer 1

>>> import datetime
>>> dt = parse(r.headers['Last-Modified'])
>>> dt_header = dt.replace(tzinfo=None)       
>>> mtime = os.path.getmtime('/tmp/1.txt')        
>>> dt_file = datetime.datetime.fromtimestamp(mtime)
>>> if dt_file > dt_header:             
...     print(1)
... 
1

Answer 2

Convert to a single format.