python - MontageError: Invalid table file

Here is the output using the debugger:

> /home/python_lib/test10.py(59)<module>()
-> aplpy.make_rgb_cube(['/tmp/tmpmyYyN7/r.fits','/tmp/tmpmyYyN7/g.fits'], '3c_324_rgb.fits')
(Pdb) n
MontageError: MontageE...aw.tbl',)
> /home/python_lib/test10.py(59)<module>()
-> aplpy.make_rgb_cube(['/tmp/tmpmyYyN7/r.fits','/tmp/tmpmyYyN7/g.fits'], '3c_324_rgb.fits')
(Pdb) n
--Return--
> /home/python_lib/test10.py(59)<module>()->None
-> aplpy.make_rgb_cube(['/tmp/tmpmyYyN7/r.fits','/tmp/tmpmyYyN7/g.fits'], '3c_324_rgb.fits')

Then when I hit "n" "enter" again it shoots out the error:

(Pdb) n
Traceback (most recent call last):
File "test10.py", line 59, in <module>
aplpy.make_rgb_cube(['/tmp/tmpmyYyN7/r.fits','/tmp/tmpmyYyN7/g.fits'], '3c_324_rgb.fits')
File "/usr/local/lib/python2.7/dist-packages/aplpy/rgb.py", line 309, in make_rgb_cube
montage.mMakeHdr(images_raw_tbl, header_hdr, north_aligned=north, system=system, equinox=equinox)
File "/usr/local/lib/python2.7/dist-packages/montage_wrapper/commands.py", line 1468, in mMakeHdr
return status.parse_struct("mMakeHdr", p.stdout.read().strip())
File "/usr/local/lib/python2.7/dist-packages/montage_wrapper/status.py", line 33, in parse_struct
result = Struct(command, string)
File "/usr/local/lib/python2.7/dist-packages/montage_wrapper/status.py", line 70, in __init__
raise MontageError("%s: %s" % (command, self.msg))
montage_wrapper.status.MontageError: mMakeHdr: Invalid table file: /tmp/tmpQILi76/images_raw.tbl
Exception AttributeError: "'NoneType' object has no attribute 'path'" in <function _remove at 0x7f7ad03c2668> ignored

I'll look it over and see if I can make sense of it...I inserted the

pdb.set_trace()

line just before

aplpy.make_rgb_cube

and sure enough, that's where the error is. Is it possible that it's because of the way I've "sliced" the images in the previous code? The problem with the .fits images I'm running into is that there's multiple "image" files to each one:

Filename: 3c324IR.fits
No.    Name         Type      Cards   Dimensions   Format
0    PRIMARY     PrimaryHDU     748   ()
1    SCI         ImageHDU       144   (1091, 966)   float32
2    WHT         ImageHDU        48   (1091, 966)   float32
3    CTX         ImageHDU        43   (1091, 966)   int32
4    HDRTAB      BinTableHDU    557   2R x 274C    [9A, 3A, J, D, D, D, D, D, D, D, D, D, D, D, D, J, 6A, 9A, 7A, 18A, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, J, J, D, D, D, D, D, D, J, J, 8A, 23A, 11A, 18A, 4A, D, D, J, J, D, D, D, D, 23A, D, D, D, D, J, J, D, 23A, 8A, J, D, D, D, 23A, 1A, D, D, D, D, D, D, 12A, 12A, 8A, 23A, D, D, 10A, 10A, D, D, D, 2A, 3A, 3A, 4A, 8A, 7A, D, J, D, 6A, 9A, D, D, D, 4A, 18A, 3A, J, 5A, D, D, D, 8A, D, D, D, D, D, 23A, 1A, D, 23A, D, D, D, 3A, J, 1A, 4A, D, 3A, 6A, D, D, D, D, D, 23A, D, D, D, D, D, 1A, J, J, J, J, 8A, 23A, J, J, 10A, 7A, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, D, 12A, D, 24A, 23A, D, 2A, 8A, D, J, D, D, 6A, 4A, D, D, D, D, D, D, D, D, D, D, D, 19A, D, J, 23A, D, 8A, D, D, 13A, D, D, J, D, D, 5A, 9A, 1A, 4A, D, 1A, J, 1A, 1A, 1A, 1A, D, D, D, D, D, D, 4A, D, D, 4A, 3A, 1A, J, 3A, 6A, J, D, D, D, 4A, J, D, D, D, J, J, J, 1A, D, D, D, D, J, J, 6A, J, 8A, D, D, 1A, 5A, J, 3A, 8A, 8A, D, J, D, 8A, 8A]
5    WCSCORR     BinTableHDU     59   7R x 24C     [40A, I, 1A, 24A, 24A, 24A, 24A, D, D, D, D, D, D, D, D, 24A, 24A, D, D, D, D, J, 40A, 128A]

Above is the output when I print the Hubble IR .fits header, which shows there are several HDU's, but the only one I want is #1, which is the image of the field. The same follows for the UVIS and VLA images. The only way I could think to select one of them is by opening them with PyFITS, and then selecting each one with a line like

r1 = r[1].data

Is this the proper way to go about this? I guess most .fits images don't have this multi-image setup to one file. When I try running it the other way, open on the original file though it definitely doesn't like it.

After selecting with the line above I simply save it, individually, back as a .fits image.

Brandon Doyle