Cannot open Campaign 15 Target Pixel FITS files

[StuartLittlefair]

After installing lightkurve on Anaconda python 3.6 (pip install lightkurve) and downloading a TPF FITS file from MAST (https://archive.stsci.edu/pub/k2/target_pixel_files/c15/249900000/14000/ktwo249914869-c15_spd-targ.fits.gz), I am unable to open with lightkurve

tpf = KeplerTargetPixelFile.from_fits_images(['ktwo249914869-c15_spd-targ.fits'])
...
FileNotFoundError: [Errno 2] No such file or directory: '/Users/sl/anaconda3/lib/python3.6/site-packages/lightkurve/data/tpf-ext0-header.txt'

I tried downloading tpf-ext0-header.txt etc, from kadenza after which the above command works, but when I produce a lightcurve it is empty...

[barentsen]

@StuartLittlefair Note that you are trying to open a Target Pixel File, so you want to execute KeplerTargetPixelFile('ktwo249914869-c15_spd-targ.fits'), not KeplerTargetPixelFile.from_fits_images('ktwo249914869-c15_spd-targ.fits')

(Nevertheless: this does expose a bug in from_fits_images, and it also shows that we should print a warning if someone tries to open a TPF using from_fits_images.)

[StuartLittlefair]

Many thanks @barentsen and @christinahedges for the help, especially since this was a pretty basic user error on my part.

@barentsen would you like me to raise a separate issue for the pip packaging problem, or leave this one open?

[barentsen]

Let's leave the ticket open -- I expect to resolve this today!

[barentsen]

The FileNotFoundError issue was resolved by adding a MANIFEST.in file to the repository. I made this a hotfix and released 1.0beta4 to pypi.

I will close this issue and open a separate one to have from_fits_images print a helpful warning if someone tries to use it to open TPFs, which is not what it's intended for.

@StuartLittlefair Many many thanks for the bug report!