[GRASS-dev] [GRASS GIS] #3820: Error i.pansharpen in grass76 relbranch

[GRASS GIS]

#3820: Error i.pansharpen in grass76 relbranch
--------------------------+---------------------------------
  Reporter:  veroandreo   |      Owner:  grass-dev@…
      Type:  defect       |     Status:  closed
  Priority:  normal       |  Milestone:  7.6.2
 Component:  Imagery      |    Version:  svn-releasebranch76
Resolution:  fixed        |   Keywords:  i.pansharpen
       CPU:  Unspecified  |   Platform:  Unspecified
--------------------------+---------------------------------

Comment (by cmbarton):

 Replying to [comment:1 veroandreo]:
 > It does work in trunk with no reported errors. However, if I run it in
 trunk compiled with python 3 in a virtualenv, I get:
 >
 > {{{
 > i.pansharpen red=lsat7_2002_30 at PERMANENT   green=lsat7_2002_20
 blue=lsat7_2002_10 pan=lsat7_2002_80 method=ihs   output=lsat7_2002_ihs
 > Using 8bit image channels
 > Performing pan sharpening with hi res pan image: 14.250000
 > Transforming to IHS color space...
 >  100%
 > Histogram matching...
 >  100%
 > Traceback (most recent call last):
 >   File "/home/veroandreo/software/grass7_trunk/dist.x86_64-pc-linux-
 gnu/scripts/i.pansharpen", line 632, in <module>
 >     main()
 >   File "/home/veroandreo/software/grass7_trunk/dist.x86_64-pc-linux-
 gnu/scripts/i.pansharpen", line 259, in main
 >     ihs(pan, ms1, ms2, ms3, out, pid, sproc)
 >   File "/home/veroandreo/software/grass7_trunk/dist.x86_64-pc-linux-
 gnu/scripts/i.pansharpen", line 380, in ihs
 >     panmatch = matchhist(pan, target, outname)
 >   File "/home/veroandreo/software/grass7_trunk/dist.x86_64-pc-linux-
 gnu/scripts/i.pansharpen", line 552, in matchhist
 >     stats = stats_out.communicate()[0].split('\n')[:-1]
 > TypeError: a bytes-like object is required, not 'str'
 > }}}

   So far, it is not designed to work in Python 3. I have not yet upgraded
 my computers so I can't yet test. A coming step will be to develop a new
 workflow to compile GRASS in Python 3.

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/3820#comment:3>
GRASS GIS <https://grass.osgeo.org>