I’ve coded this and I’m a retard. Relative portion from a method:

from urllib.request import urlopen
            foundrss = False
            for line in urlopen(self.channelurl):
                for word in line.split():
                    if foundrss:
                        if not self.feedurl:
                            self.feedurl = word.split(b'"')[1].decode("utf-8")
                            if 'xml' not in self.feedurl:
                                raise Exception("'xml' not found in feedurl")
                        elif not self.channelname: # feed url is set, extract the channel name that comes soon after
                            if word.startswith(b'content='): # start collecting words
                                self.channelname = [word.split(b'"')[1].decode("utf-8")]
                                if word.count(b'"') == 2: # channel name is a single word
                                    self.channelname = self.channelname[0]
                                    return
                        else: # we have channelname started, just collect the rest of the words now
                            if b'"' in word: # get text to the left of "
                                self.channelname.append(word.split(b'"')[0].decode("utf-8"))
                                self.channelname = ' '.join(self.channelname)
                                return
                            else:
                                self.channelname.append(word.decode("utf-8"))
                    elif word == b'title="RSS"':
                        foundrss = True

I think GNU favors the info tool, try that if the man page is lacking.

RTFM doesn’t have to literally mean to read text, just like saying “let me google that for you” doesn’t have to literally be google. Both statements are similar; the point is instead of burdening others with teaching you something, go learn it on your own whether that be the manual or random Indian tech youtuber.