[GRASS-dev] [GRASS GIS] #3837: OSGeo4W winGRASS77svn - startup error: TypeError: endswith first arg must be bytes or a tuple of bytes, not str

[GRASS GIS]

#3837: OSGeo4W winGRASS77svn - startup error: TypeError: endswith first arg must
be bytes or a tuple of bytes, not str
--------------------------+------------------------------------
  Reporter:  hellik       |      Owner:  grass-dev@…
      Type:  defect       |     Status:  new
  Priority:  blocker      |  Milestone:  7.8.0
 Component:  Python       |    Version:  svn-trunk
Resolution:               |   Keywords:  python3, py3, wingrass
       CPU:  Unspecified  |   Platform:  MSWindows
--------------------------+------------------------------------

Comment (by pmav99):

 Now to the problem at hand.

 {{{
     if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
 TypeError: endswith first arg must be bytes or a tuple of bytes, not str
 }}}
 Pathext is an iterable (in this case a list) and the problem seems to be
 that at least one of the pathext elements is a string instead of a bytes
 object. Now, I don't understand why this happens, since lines 200-201
 should handle the conversion to bytes. Anyway, to debug this try to add
 the following line just before the problematic one:
 {{{
 import pprint
 pprint.pprint([ext, type(ext) for ext in pathext])
 }}}

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3837#comment:10>
GRASS GIS <https://grass.osgeo.org>