I'm a bit confused about name quoting. I have a package with a name "Todo_SQLObject_ZPT", and egg_info writes to "Todo-SQLObject-ZPT.egg-info". Why? I thought -'s were bad, but _'s were okay...? I'm also getting a traceback when I try to do "python setup develop", following. The application that is causing this problem is at http://svn.pythonpaste.org/Paste/apps/Todo_SQLObject_ZPT/trunk (it's probably broken in other ways, I'm still in the process of converting it). I'm using the latest CVS version of setuptools. Todo_SQLObject_ZPT$ python setup.py egg_info develop running egg_info writing ./Todo-SQLObject-ZPT.egg-info/PKG-INFO writing top-level names to ./Todo-SQLObject-ZPT.egg-info/top_level.txt running develop Traceback (most recent call last): File "setup.py", line 18, in ? package_data={ File "/usr/local/lib/python2.4/distutils/core.py", line 149, in setup dist.run_commands() File "/usr/local/lib/python2.4/distutils/dist.py", line 946, in run_commands self.run_command(cmd) File "/usr/local/lib/python2.4/distutils/dist.py", line 965, in run_command cmd_obj.ensure_finalized() File "/usr/local/lib/python2.4/distutils/cmd.py", line 117, in ensure_finalized self.finalize_options() File "/usr/home/ianb/co/setuptools/setuptools/command/develop.py", line 45, in finalize_options easy_install.finalize_options(self) File "/usr/home/ianb/co/setuptools/setuptools/command/easy_install.py", line 181, in finalize_options self.package_index = self.create_index( File "/usr/home/ianb/co/setuptools/setuptools/package_index.py", line 128, in __init__ Environment.__init__(self,*args,**kw) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 558, in __init__ self.scan(search_path) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 588, in scan self.add(dist) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 610, in add if dist not in dists: File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 1760, in __cmp__ def __cmp__(self, other): return cmp(self.hashcmp, other) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 1760, in __cmp__ def __cmp__(self, other): return cmp(self.hashcmp, other) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 1755, in <lambda> lambda self: ( File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 1782, in parsed_version self._parsed_version = pv = parse_version(self.version) File "/usr/home/ianb/co/setuptools/pkg_resources.py", line 1797, in version raise ValueError( ValueError: ("Missing 'Version:' header and/or PKG-INFO file", Todo-SQLObject-ZPT [unknown version] (/usr/home/ianb/co/Todo_SQLObject_ZPT))