How to handle response encoding from urllib.request.urlopen()

Python Programming

Question or problem about Python programming:

I’m trying to search a webpage using regular expressions, but I’m getting the following error:

I understand why, urllib.request.urlopen() returns a bytestream and so, at least I’m guessing, re doesn’t know the encoding to use. What am I supposed to do in this situation? Is there a way to specify the encoding method in a urlrequest maybe or will I need to re-encode the string myself? If so what am I looking to do, I assume I should read the encoding from the header info or the encoding type if specified in the html and then re-encode it to that?

How to solve the problem:

Solution 1:

You just need to decode the response, using the Content-Type header typically the last value. There is an example given in the tutorial too.

output = response.decode('utf-8')

Solution 2:

As for me, the solution is as following (python3):

resource = urllib.request.urlopen(an_url)
content =

Solution 3:

I had the same issues for the last two days. I finally have a solution.
I’m using the info() method of the object returned by urlopen():


Solution 4:

With requests:

import requests

response = requests.get(URL).text

Solution 5:


Will output something like this:

text/html; charset=utf-8

Solution 6:

Here is an example simple http request (that I tested and works)…

address = ""    

Make sure to read the documentation.

If you want to do something more detailed GET/POST REQUEST.

import urllib.request # HTTP REQUEST of some address def REQUEST(address): req = urllib.request.Request(address) req.add_header('User-Agent', 'NAME (Linux/MacOS; FROM, USA)') response = urllib.request.urlopen(req) html ='utf-8') # make sure its all text not binary print("REQUEST (ONLINE): " + address) return html 

Solution 7:

after you make a request req = urllib.request.urlopen(...) you have to read the request by calling html_string = that will give you the string response that you can then parse the way you want.

Hope this helps!