Description of problem:
List of devices is empty even though there are valid device replies in my network. There are lots of python errors on the console.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. start upnp-inspector with devices in your network
2.
3.

Actual results:
empty device list

Expected results:
device list

Additional info:
console looks like:
$ upnp-inspector 
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
  File "/usr/lib/python2.7/site-packages/louie/robustapply.py", line 56, in robust_apply
    return receiver(*arguments, **named)
  File "/usr/lib/python2.7/site-packages/coherence/base.py", line 621, in create_device
    root = RootDevice(infos)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/device.py", line 450, in __init__
    self.parse_description()
  File "/usr/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 "/usr/lib/python2.7/site-packages/coherence/upnp/core/utils.py", line 588, in getPage
    scheme, host, port, path = client._parse(url)
  File "/usr/lib64/python2.7/site-packages/twisted/python/deprecate.py", line 399, in __getattribute__
    value = getattr(state._module, name)
exceptions.AttributeError: 'module' object has no attribute '_parse'
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/twisted/python/log.py", line 73, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/lib64/python2.7/site-packages/twisted/python/context.py", line 81, in callWithContext
    return func(*args,**kw)
  File "/usr/lib64/python2.7/site-packages/twisted/internet/posixbase.py", line 614, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/lib64/python2.7/site-packages/twisted/internet/udp.py", line 248, in doRead
    self.protocol.datagramReceived(data, addr)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/msearch.py", line 46, in datagramReceived
    host=host)
  File "/usr/lib/python2.7/site-packages/coherence/upnp/core/ssdp.py", line 136, in register
    louie.send('Coherence.UPnP.SSDP.new_device', None, device_type=st, infos=self.known[usn])
  File "/usr/lib/python2.7/site-packages/louie/dispatcher.py", line 348, in send
    **named
...