[GRASS-dev] Re: [GRASS GIS] #1342: grass.core.find_program() problem with ssh and other

[GRASS GIS]

#1342: grass.core.find_program() problem with ssh and other
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 Reporter:  lucadelu             |       Owner:  grass-dev@…              
     Type:  defect               |      Status:  new                      
 Priority:  normal               |   Milestone:  7.0.0                    
Component:  Python               |     Version:  svn-trunk                
 Keywords:  python find_program  |    Platform:  Linux                    
      Cpu:  Unspecified          |  
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Comment(by glynn):

 Replying to [ticket:1342 lucadelu]:
 > there are some program that print help message to stderr instead stdout
 and this return false instead true in grass.core.find_program().

 Whether the program prints anything to either stream is entirely
 irrelevant; find_program() simply checks the return code.

 In order for find_program() to work, you need to find some invocation
 which returns a zero exit status (indicating success). If running the
 command with --help is considered an error (non-zero exit status), you'll
 need to find some other option. E.g. for ssh, you can use "ssh -V".

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1342#comment:1>
GRASS GIS <http://grass.osgeo.org>