[execnet-dev] Problem with execnet use

[holger krekel]

Hi Pedro, 

On Sun, Jun 13, 2010 at 13:15 -0700, Pedro Marcal wrote:
> Dear Holger,
> You were kind enough to get me started. I tried to run the demo by Stuart
> Perkins on NLTK.
> I ran into the following problem. He suggested I contact the list. I did not
> see a way to log in.

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> Windows7 on ic5.

"ic5"? i haven't used windows7 myself yet. 

> opening 4 gateways at localhost
>
> 
> Traceback (most recent call last):
>   File "C:/CD_data/run_tag_files.py", line 20, in <module>
>     gw = execnet.makegateway('ssh=%s//nice=%d' % (host, NICE))
>   File
> "C:\Python26\lib\site-packages\execnet-1.0.6-py2.6.egg\execnet\multi.py",
> line 80, in makegateway
>     ssh_config=spec.ssh_config, id=id)
>   File
> "C:\Python26\lib\site-packages\execnet-1.0.6-py2.6.egg\execnet\gateway.py",
> line 200, in __init__
>     super(SshGateway, self).__init__(args, id=id)
>   File
> "C:\Python26\lib\site-packages\execnet-1.0.6-py2.6.egg\execnet\gateway.py",
> line 139, in __init__
>     self._popen = p = Popen(args, stdin=PIPE, stdout=PIPE)
>   File "C:\Python26\lib\subprocess.py", line 633, in __init__
>     errread, errwrite)
>   File "C:\Python26\lib\subprocess.py", line 842, in _execute_child
>     startupinfo)
> WindowsError: [Error 2] The system cannot find the file specified
> [DEBUG ON]

Do you have ssh installed as a command line tool in your windows environment? 
I think people did so and had success using ssh-gateways on windows. 
If you really just want some "localhost" processes you could just 
use "popen//nice=..." which creates sub processes and works without 
external dependencies. 

cheers,
holger