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1. pip install pyfits  (3.3)
2. pip install pywcs (1.12)
3. pip install APLpy (0.9.14)
4. 4Suite-XML 1.0.2, using the tarball available and then run: python setup.py install

5. pywcsgrid2-0.1b2 tarball should be within  our GLAST_EXT area
   extract

   cd

   python setup.py install

6. pip install healpy (1.8.4)

2.7.6

redhat5-i686-32bit-gcc41 & redhat5-x86_64-64bit-gcc41 & redhat6-x86_64bit-gcc44

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