Detect URL change in python

It looks like you can follow redirects . E.g:

requests.get(url, headers=headers, timeout=3, allows_redirect=True)
>>> r.url
'url'

>>> r.status_code
200

>>> r.history
[<Response [301]>] # means that there was a redirect on the way

In fact, you can just use the HEAD request to verify the behavior, only when the result is not required to be parsed (because the HEAD response body is empty).

>>> r = requests.head(url, headers=headers, timeout=3, allow_redirects=True)

>>> r.url
'..something...'

>>> r.history
[<Response [301]>] 

In theory, you could also block the redirect entirely, and check the response status.

>>> r = requests.get(url, headers=headers, timeout=3, allow_redirects=False)

>>> r.status_code
301

>>> r.history
[]

Now, a 301 could mean a redirect to wholesale or something - you don't know.

Update 1

For example, periscope.tv (it appears the OP has issues with a site like this):

>>> example = requests.get("https://periscope.tv/couchmode", allow_redirects=True)
>>> example.status_code
200
>>> example.history
[<Response [307]>]
>>> example.history[0].url
u'https://periscope.tv/couchmode'
>>> example.url
u'https://periscope.tv/w/aZwcYHNlcnZpY2V8MURYeHl6WUFaUWdLTerSfgniRKoRgIPbfxxlbAGofYQNBd8WZZTEelJ0KavI?mode=couch'

As you can see example.history[0].url tells you what is the URL that returns a 307 temporary redirect.