oauth import doesn't work on python3

launchpadlib doesn't work on python3 because oauth import breaks:

$ virtualenv -p python3.5 ve
$ ve/bin/pip install -e bzr+ssh://bazaar.launchpad.net/+branch/lazr.restfulclient/#egg=lazr.restfulclient
$ ve/bin/pip install -e bzr+ssh://bazaar.launchpad.net/+branch/launchpadlib/#egg=launchpadlib
$ ve/bin/python3.5 -c 'from launchpadlib.launchpad import Launchpad'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/ack/Desktop/ve/src/launchpadlib/src/launchpadlib/launchpad.py", line 44, in <module>
    from lazr.restfulclient.authorize.oauth import SystemWideConsumer
  File "/home/ack/Desktop/ve/src/lazr.restfulclient/src/lazr/restfulclient/authorize/oauth.py", line 33, in <module>
    oauth = __import__('oauth.oauth', {}).oauth
  File "/home/ack/Desktop/ve/lib/python3.5/site-packages/oauth/oauth.py", line 29, in <module>
    import urlparse
ImportError: No module named 'urlparse'

note that I used lazr.restfulclient from trunk since the version on pypi fail to install on python3