upnp-inspector @0.2.2 does not show any devices

[macports-mail@…]

My network has several uPnP media servers installed. The upnp-inspector global log shows that SSDP messages are being sent and replies received. This is also confirmed at the network level using Wireshark. However, the upnp-inspector Devices window does not show any devices.

Installing upnp-inspector automatically pulls in the dependent ports py27-twisted (v13.2.0) and coherence (v0.6.6.2). These 2 ports appear to be incompatible. Downgrading py27-twisted to v12.0.0 makes everything work again.

I am running Mavericks currently using Xcode6-beta5. Although the latter is beta code it is not relevant to this case as this is not a build issue but a compatibility issue between the installed versions of coherence and py-twisted.

On the Terminal, exceptions like the following are seen:

  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 538, in parse_description
    utils.getPage(self.location).addCallbacks(gotPage, gotError, None, None, [self.location], None)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
exceptions.AttributeError: 'module' object has no attribute '_parse'

[mf2k (Frank Schima)]

In the future, please Cc the port maintainers (port info --maintainers upnp-inspector coherence py-twisted).

[dbevans (David B. Evans)]

Will take a look. From your description, it looks like coherence, upnp-inspector, et al. need to be fixed to work with latest py-twisted.

[macports-mail@…]

The coherence fix required could be the one list in ​https://github.com/coherence-project/Coherence/search?q=17e1867&type=Issues

[dbevans (David B. Evans)]

Yes, have confirmed the problem is due to API changes in twisted.web 13.2 that dropped the _parse method in favor of a new _URI class. The fix cited in comment:3 seems to address this issue. Will test over the weekend and hopefully have a fix early next week if not sooner. Plan to update the coherence related ports to the new github repository as well.

[dbevans (David B. Evans)]

This issue was fixed some time ago by updating coherence, upnp-inspector as follows:

coherence updated in ​https://github.com/macports/macports-ports/commit/7dc861ed104ddeb2cae1324ef54937506d2ee4ec
upnp-inspector updated in commit ​https://github.com/macports/macports-ports/commit/46aa631941830f295f5c99fbec655cda660c841f