Method open

tools/python-3.11.9-amd64/Lib/urllib/request.py:1759–1793

Use URLopener().open(file) instead of open(file, 'r').

(self, fullurl, data=None)

    # External interface
    def open(self, fullurl, data=None):
        """Use URLopener().open(file) instead of open(file, 'r')."""
        fullurl = unwrap(_to_bytes(fullurl))
        fullurl = quote(fullurl, safe="%/:=&?~#+!$,;'@()*[]|")
        if self.tempcache and fullurl in self.tempcache:
            filename, headers = self.tempcache[fullurl]
            fp = open(filename, 'rb')
            return addinfourl(fp, headers, fullurl)
        urltype, url = _splittype(fullurl)
        if not urltype:
            urltype = 'file'
        if urltype in self.proxies:
            proxy = self.proxies[urltype]
            urltype, proxyhost = _splittype(proxy)
            host, selector = _splithost(proxyhost)
            url = (host, fullurl) # Signal special case to open_*()
        else:
            proxy = None
        name = 'open_' + urltype
        self.type = urltype
        name = name.replace('-', '_')
        if not hasattr(self, name) or name == 'open_local_file':
            if proxy:
                return self.open_unknown_proxy(proxy, fullurl, data)
            else:
                return self.open_unknown(fullurl, data)
        try:
            if data is None:
                return getattr(self, name)(url)
            else:
                return getattr(self, name)(url, data)
        except (HTTPError, URLError):
            raise
        except OSError as msg:
            raise OSError('socket error', msg) from msg

    def open_unknown(self, fullurl, data=None):
        """Overridable interface to open unknown URL type."""