sdist doesn't include wcs header files and scripts directory. #26

Hello,

I tried Python 2.6 and Python 2.7. Running python setup.py install in the astropy repo, doesn't create any problems since all the files are accessible. But this is a problem when trying to install this from a sdist, for example by automated testing software like tox.

Bug in setuptools/distutils?

Using recursive-include astropy/wcs/src *.h in MANIFEST.in works.

If MANIFEST.in is specified then only the files mentioned in it gets copied; setuptools/distutils does not use its default file finding algorithm in this case.

Additional comments (with what I think are the reasons):

The scripts directory doesn't get copied, since setup.py removes the only file README.rst in this directory.

The contents of AstroPy.egg-info/ doesn't get cleared/updated between two runs of setup.py. For example, say we run setup.py sdist using the MANIFEST.in mentioned above. Now remove the line from MANIFEST.in, ad run setup.py again. This time the header files will get included, even though they are not specified in MANIFEST.in. I guess that this is because the header files get listed in AstroPy.egg-info/SOURCES.txt the first time, and the list gets reused. This leads to major confusion: I just lost 1.5 hours. Deleting AstroPy.egg-info leads to the previous behaviour.

If AstroPy.egg-info is deleted, without deleting version.py AND version.pyc, then the import astropy line in setup.py complains that AstroPy distribution doesn't exist. The astropy/__init__.py tried to run version.py which uses AstroPy, causing error.

Prasanth