This is harder than I thought, because setup.py imports nevow and nevow/__init__.py imports nevow/_version.py which imports twisted.python.versions and pip doesn't seem to support setup_requires.
versiontools has a way of doing this sort of thing that doesn't require setup_requires: http://versiontools.readthedocs.org/en/latest/usage.html -- maybe Nevow could use that or something similar?
This is harder than I thought, because setup.py imports nevow and nevow/__init__.py imports nevow/_version.py which imports twisted. python. versions and pip doesn't seem to support setup_requires.
versiontools has a way of doing this sort of thing that doesn't require setup_requires: http:// versiontools. readthedocs. org/en/ latest/ usage.html -- maybe Nevow could use that or something similar?