[Twisted-Python] copy domish element
i have a domish element - when i try the following,
message = element del message['from'] element['from']
- i get a key error to avoid this key error, i think i want to copy the element, so i can drop the 'from' attribute from one copy without affecting the other? but i didn't find anything to make a copy in the domish element api how should i avoid this key error?
Jack Bates wrote:
i have a domish element - when i try the following,
message = element del message['from'] element['from']
- i get a key error
Well, yes. That's how python works ;o)
to avoid this key error, i think i want to copy the element, so i can drop the 'from' attribute from one copy without affecting the other?
but i didn't find anything to make a copy in the domish element api
I haven't tried it, but have you tried the python standard copy protocol: import copy message = copy.deepcopy(element)
On Mon, 2009-06-08 at 18:03 +0100, Phil Mayers wrote:
Jack Bates wrote:
i have a domish element - when i try the following,
message = element del message['from'] element['from']
- i get a key error
Well, yes. That's how python works ;o)
to avoid this key error, i think i want to copy the element, so i can drop the 'from' attribute from one copy without affecting the other?
but i didn't find anything to make a copy in the domish element api
I haven't tried it, but have you tried the python standard copy protocol:
import copy message = copy.deepcopy(element)
Deep copies of Element instances is probably not what you want here. See issue #724. I suspect from your example that you want to respond to an incoming XML Stanza. In general, it is better to construct a new stanza from the old one, keeping the addressing but in reverse. There is a utility function for this: twisted.words.protocols.jabber.xmlstream.toResponse. For error responses, you want to look at t.w.p.j.error.StanzaError and its toResponse method. -- Groetjes, ralphm
On Tue, 2009-06-09 at 08:47 +0200, Ralph Meijer wrote:
On Mon, 2009-06-08 at 18:03 +0100, Phil Mayers wrote:
Jack Bates wrote:
i have a domish element - when i try the following,
message = element del message['from'] element['from']
- i get a key error
Well, yes. That's how python works ;o)
to avoid this key error, i think i want to copy the element, so i can drop the 'from' attribute from one copy without affecting the other?
but i didn't find anything to make a copy in the domish element api
I haven't tried it, but have you tried the python standard copy protocol:
import copy message = copy.deepcopy(element)
Deep copies of Element instances is probably not what you want here. See issue #724.
I suspect from your example that you want to respond to an incoming XML Stanza. In general, it is better to construct a new stanza from the old one, keeping the addressing but in reverse. There is a utility function for this: twisted.words.protocols.jabber.xmlstream.toResponse. For error responses, you want to look at t.w.p.j.error.StanzaError and its toResponse method.
much thanks for your attention ralphm! actually i want to reroute an incoming xml <message> i have one script, qubot, which sits in our project chat room, http://github.com/jablko/qubot/blob/722b28f66d5eaf96d3b00902f3532ba61588c4c9... - and one script, jabber, which sends commit messages to qubot, http://github.com/jablko/jabber/blob/92a418a4c6d1d2a21beda02ff7d9edce18146e1... when qubot receives a message from jabber, it should relay the message to the chat room i used to construct a new <message> and copy a whitelist of attributes and content from the incoming <message>, however i switched to attempting a perfect copy of the incoming <message> and adjusting a blacklist of attributes (such as del message['from']) because otherwise xmpp extensions like xhtml-im were not relayed, http://github.com/jablko/qubot/commit/722b28f66d5eaf96d3b00902f3532ba61588c4...
participants (3)
-
Jack Bates -
Phil Mayers -
Ralph Meijer