[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:  7.8.0
 Component:  Python       |    Version:  svn-trunk
Resolution:               |   Keywords:  python3
       CPU:  Unspecified  |   Platform:  Unspecified
--------------------------+-------------------------

Comment (by pmav99):

 That's the least invasive patch I can think off:

 {{{
 Index: lib/python/script/core.py
 ===================================================================
 --- lib/python/script/core.py   (revision 74173)
 +++ lib/python/script/core.py   (working copy)
 @@ -164,7 +164,7 @@

      return set(cmd), scripts

 -
 +# TODO: Please replace this function with shutil.which() before 8.0 comes
 out
  # replacement for which function from shutil (not available in all
 versions)
  # from http://hg.python.org/cpython/file/6860263c05b3/Lib/shutil.py#l1068
  # added because of Python scripts running Python scripts on MS Windows
 @@ -239,6 +239,8 @@
                      return name
      return None

 +if sys.version_info.major > 2:
 +    shutil_which = shutil.which

  # Added because of scripts calling scripts on MS Windows.
  # Module name (here cmd) differs from the file name (does not have
 extension).
 }}}

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3773#comment:4>
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