cdscan failing on missing value

[pochedls]

Running on crunchy (there is only one file in this directory):
cd /p/user_pub/work/pochedley1/cmip5/piControl/hfss/
cdscan -x test.xml *.nc

I get this error:
Finding common directory ... Common directory: Scanning files ... hfss_Amon_MRI-CGCM3_piControl_r1i1p1_185101-235012.nc Setting reference time units to days since 1851-01-01 Traceback (most recent call last): File "/export_backup2/pochedley1/bin/anaconda2/envs/uvcdate/bin/cdscan", line 1684, in <module> main(sys.argv) File "/export_backup2/pochedley1/bin/anaconda2/envs/uvcdate/bin/cdscan", line 1638, in main cleanupAttrs(attrs) File "/export_backup2/pochedley1/bin/anaconda2/envs/uvcdate/bin/cdscan", line 467, in cleanupAttrs if len(numpy.array(attval))==1: TypeError: len() of unsized object

I printed out the attribute / type / value:
...
_FillValue <type 'numpy.ndarray'> [ 1.00000002e+20]
missing_value <type 'numpy.ndarray'> [ 1.00000002e+20]
missing_value <type 'numpy.ndarray'> 1e+20

Note that the last missing value prints differently than the prior two attributes (it looks like it isn't an array). This seems to be failing despite the logic added by @painter1 in #2145. Any insight on what is going on would be appreciated! I get this error with v2.8 or a nightly build from last week.

[pochedls]

For some reason, I thought issue #2145 was closed. If I modify my cdscan function following @painter1's suggested update to cleanupAttrs(), cdscan appears to work.

I'll leave this updated function in place and this ticket can be closed as a duplicated.