New issue 951: FITSImageBuffer error in docs build https://bitbucket.org/yt_analysis/yt/issue/951/fitsimagebuffer-error-in-docs... Nathan Goldbaum: This is coming from the `FITSImageBuffer` notebook in the latest docs build: ``` #!python %matplotlib inline import yt from yt.utilities.fits_image import FITSImageBuffer, FITSSlice, FITSProjection INFO:root:Cell returned INFO:root:Running cell: ds = yt.load("MHDSloshing/virgo_low_res.0054.vtk", parameters={"length_unit":(1.0,"Mpc"), "mass_unit":(1.0e14,"Msun"), "time_unit":(1.0,"Myr")}) INFO:root:Cell returned INFO:root:Running cell: prj = yt.ProjectionPlot(ds, "z", ["temperature"], weight_field="density", width=(500.,"kpc")) prj.show() INFO:root:Cell returned INFO:root:Running cell: prj_fits = FITSProjection(ds, "z", ["temperature"], weight_field="density") INFO:root:Cell raised uncaught exception: --------------------------------------------------------------------------- ValueError Traceback (most recent call last) <ipython-input-4-429a440945f9> in <module>() ----> 1 prj_fits = FITSProjection(ds, "z", ["temperature"], weight_field="density") /var/lib/jenkins/jobs/yt-docs-3.0/workspace/yt/utilities/fits_image.pyc in __init__(self, ds, axis, fields, center, width, weight_field, image_res, **kwargs) 472 prj = ds.proj(fields[0], axis, weight_field=weight_field, **kwargs) 473 w, frb = construct_image(prj, center=dcenter, width=width, --> 474 image_res=image_res) 475 super(FITSProjection, self).__init__(frb, fields=fields, wcs=w) 476 for i, field in enumerate(fields): /var/lib/jenkins/jobs/yt-docs-3.0/workspace/yt/utilities/fits_image.pyc in construct_image(data_source, center, width, image_res) 356 w.wcs.cdelt = cdelt 357 w.wcs.crval = crval --> 358 w.wcs.cunit = cunit 359 w.wcs.ctype = ctype 360 return w, frb /home/xarth/yt-x86_64/lib/python2.7/site-packages/astropy-0.4.dev8348-py2.7-linux-x86_64.egg/astropy/units/core.pyc in __call__(self, s, represents, format, namespace, doc, parse_strict) 1715 .format(s, format_clause, six.text_type(e))) 1716 if parse_strict == 'raise': -> 1717 raise ValueError(msg) 1718 elif parse_strict == 'warn': 1719 warnings.warn(msg, UnitsWarning) ValueError: 'code_length' did not parse as fits unit: At col 0, Unit u'code_length' not supported by the FITS standard. ``` Responsible: jzuhone