[GRASS-dev] [GRASS GIS] #3773: shutil_which() throws an exception on Linux + Python 3

[GRASS GIS]

#3773: shutil_which() throws an exception on Linux + Python 3
-------------------------+-------------------------
 Reporter:  pmav99       |      Owner:  grass-dev@…
     Type:  defect       |     Status:  new
 Priority:  normal       |  Milestone:
Component:  Python       |    Version:  svn-trunk
 Keywords:               |        CPU:  Unspecified
 Platform:  Unspecified  |
-------------------------+-------------------------
 {{{
 Traceback (most recent call last):
   File "raster/r.report/testsuite/test_r_report.py", line 68, in
 test_output
     self.assertModule('r.report', map='lakes', output=self.outfile)
   File "/home/feanor/Prog/git/grass-p3/repo/dist.x86_64-pc-linux-
 gnu/etc/python/grass/gunittest/case.py", line 1145, in assertModule
     if not shutil_which(module.name):
   File "/home/feanor/Prog/git/grass-p3/repo/dist.x86_64-pc-linux-
 gnu/etc/python/grass/script/core.py", line 225, in shutil_which
     name = os.path.join(encode(dir), thefile)
   File "/usr/lib/python3.7/posixpath.py", line 94, in join
     genericpath._check_arg_types('join', a, *p)
   File "/usr/lib/python3.7/genericpath.py", line 151, in _check_arg_types
     raise TypeError("Can't mix strings and bytes in path components") from
 None
 TypeError: Can't mix strings and bytes in path components
 }}}

 This was introduced at https://trac.osgeo.org/grass/changeset/73930

 A possible resolution could be:

 {{{
 import six

 if six.PY3:
     shutil_which = shutil.which
 else:
     def shutil_which(...):
         # ...
 }}}

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/3773>
GRASS GIS <https://grass.osgeo.org>