get_environ() Returns a dictionary containing the WSGI environment for a request. The default implementation copies the contents

Cookie.set_nonstandard_attr(name, value) Set the value of the named cookie-attribute.

BaseHandler.default_open(req) This method is not defined in BaseHandler, but subclasses should define

class urllib.request.URLopener(proxies=None, **x509) Deprecated since

DefaultCookiePolicy.is_not_allowed(domain) Return whether domain is not on the whitelist for setting or receiving cookies

IMAP4.store(message_set, command, flag_list) Alters flag dispositions for messages in mailbox. command is specified

Request.remove_header(header) Remove named header from the request instance (both from regular and unredirected headers).

class urllib.request.UnknownHandler A catch-all class to handle unknown URLs.

mailfrom Holds a string containing the address identified in the “MAIL FROM:” line from the client.

class smtplib.LMTP(host='', port=LMTP_PORT, local_hostname=None, source_address=None) The LMTP protocol, which is very similar