Could someone explain to me the purpose of this line host = parsed.netloc.split('@')[-1].split(':')[0]in the following code? I understand that we are trying to get the host name from netlock but I don't understand why we are splitting with the @ delimiter and then again with the : delimiter.
import urlparse
parsed = urlparse.urlparse('https://www.google.co.uk/search?client=ubuntu&channel=fs')
print parsed
host = parsed.netloc.split('@')[-1].split(':')[0]
print host
Result:
ParseResult(scheme='https', netloc='www.google.co.uk', path='/search', params='', query='client=ubuntu&channel=fs, fragment='')
www.google.co.uk
Surely if one just needs the domain, we can get that from urlparse.netloc
Netloc in its full form can have HTTP authentication credentials and a port number:
login:[email protected]:80
So we potentially have to split that into ["login:password", "www.google.co.uk:80"], take the last part, split that into ["www.google.co.uk", "80"] and take the hostname.
If these parts are omitted, there's no harm in trying to split on nonexisting delimeters, and no need to check if they're omitted or not.