yolk with fink python 3.4 on 10.10 just stopped working

yolk -U
Traceback (most recent call last):
  File "/sw/bin/yolk", line 9, in <module>
    load_entry_point('yolk3k==0.8.1', 'console_scripts', 'yolk')()
  File "/sw/lib/python3.4/site-packages/yolk/cli.py", line 1128, in main
    my_yolk.run()
  File "/sw/lib/python3.4/site-packages/yolk/cli.py", line 209, in run
    return getattr(self, action)()
  File "/sw/lib/python3.4/site-packages/yolk/cli.py", line 239, in show_updates
    pkg_list = get_pkglist()
  File "/sw/lib/python3.4/site-packages/yolk/setuptools_support.py", line 87, in get_pkglist
    dists = Distributions()
  File "/sw/lib/python3.4/site-packages/yolk/yolklib.py", line 24, in __init__
    self.environment = pkg_resources.Environment()
  File "/sw/lib/python3.4/site-packages/pkg_resources.py", line 798, in __init__
    self.scan(search_path)
  File "/sw/lib/python3.4/site-packages/pkg_resources.py", line 828, in scan
    self.add(dist)
  File "/sw/lib/python3.4/site-packages/pkg_resources.py", line 848, in add
    dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
TypeError: unorderable types: str() < NoneType()