A few little changes, mostly getting `pip install git+https://...` to work on python2 and 3, and with newer astropy versions

[cjordan]

With these changes, I still couldn't get the test suite to work on my machine:

_______________________________________________________________________________________________________________________________________________ TestAntennaArray.test_unphs2src _______________________________________________________________________________________________________________________________________________

self = <tests.phs_test.TestAntennaArray testMethod=test_unphs2src>

    def test_unphs2src(self):
        self.aa.select_chans([1,2,3])
        self.aa.set_jultime(2454555.)
        src = a.phs.RadioFixedBody('0:00', '20:00')
        src.compute(self.aa)
        self.assertTrue(n.all(
>           self.aa.unphs2src(self.aa.gen_phs(src,0,1),src,0,1) == 1.))
E       AssertionError: False is not true

tests/phs_test.py:369: AssertionError
______________________________________________________________________________________________________________________________________________ TestCulgooraCatalog.test_metadata ______________________________________________________________________________________________________________________________________________

self = <culgoora_test.TestCulgooraCatalog testMethod=test_metadata>

    def setUp(self):
        self.cat = h.CulgooraCatalog()
>       self.cat.fromfile(h.CULGOORAFILE)

tests/catalog_tests/culgoora_test.py:8:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = {}, filename = '/usr/lib/python2.7/site-packages/aipy/_src/culgoora.txt'

    def fromfile(self,filename):
        '''Parses a tab-delimited text file for the Culgoora array.  When both
            80 MHz and 160 MHz measurements are available, catalog entries use
            mfreq=.160 and include a computed spectral index.  When only one
            measurement is available, mfreq is set for that measurement, and index
            is set to 0.'''
>       f = open(filename)
E       IOError: [Errno 2] No such file or directory: '/usr/lib/python2.7/site-packages/aipy/_src/culgoora.txt'

/usr/lib/python2.7/site-packages/aipy/_src/culgoora.py:35: IOError

(and more similar "can't find this text file" errors)

But, I did fix a few simple things.

By the way - not sure if the restriction on astropy should be enforced, but aipy's interface with MIRIAD data works fine for me on python3 and astropy > 3.0. The commit restricting astropy is commit fd08c48. If astropy should not be restricted to be < 2.0, then this should be relaxed to < 3.0 for python2, as python2 has no version >= 3.0.

[coveralls]

Coverage remained the same at 47.343% when pulling 34ba75ddf1a12d164eaf1f469612ea39606c4442 on cjordan:master into 05472fd6a30054cb04988232ded5e9f7f4ca55e5 on HERA-Team:master.

[pkgw]

Thanks for the fixes!

To be honest, I am not sure what precisely motivated the astropy version requirement — the commit logs don't spell it out. I am tempted to just drop the restriction altogether.