IO.FITS: Problem with HIERARCH keywords

[pchanial]

With the FITS package included in astropy 0.2.1, the HIERARCH keywords in the following FITS file cannot be read. It used to work with pyfits 3.0.6

[pchanial]

Well... is there a way to attach a FITS file ?

The offending lines in the header are like :
HIERARCH key.META_4='calFileVersion'

reading this header as h, h['key.META_4'] does not return 'calFileVersion'.

[embray]

Thanks for the report. I think I see what the problem is--in normal FITS keyword records the value indicator (the string between the keyword and the value) must be = (with a space after the equal sign). But a close reading of the HIERARCH keyword convention document indicates no such requirement for HIERARCH keywords. There may be no spaces after the =. I guess this inconsistency is a tradeoff for more space in the already cramped 80 byte record.

[pchanial]

Thanks for the quick fix. There is still a minor issue:
such keywords as returned by header.keys() have a leading space: ' key.META_4'

[pchanial]

There is also another issue, which is reproducible but it's hard to make a simple test case. Maybe if I tell you what happens, you'll understand:
There is a wrong verify warning: Card keyword 'key.META_0' is not upper case.

What's happening in Card._verify is that

• self._image is None, so that the test checking for HIERARCH keyword does fail
• if I force self._image to be populated before the test, simply by computing str(self) the warning is not issued (as expected).

[pchanial]

I have filed these two issues (with a test case) as spacetelescope/PyFITS#6 and spacetelescope/PyFITS#7

[embray]

This is fixed with the merge of #1076.