| Calling a Python script from IDL [message #40003] |
Wed, 07 July 2004 09:45  |
lwelser
Messages: 2
Registered: April 2004
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Junior Member |
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Is there a way to call a Python script from within IDL and have it
return information to the IDL program? (Python is an object-oriented
scripting language similar to perl and java). I'm working on
visualizing huge amounts of data in an IDL widget, and a python script
to parse through this data is already in existance.
Thanks,
Leslie Welser
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| Re: Calling a Python script from IDL [message #40059 is a reply to message #40003] |
Sun, 11 July 2004 15:54  |
Michael Wallace
Messages: 409
Registered: December 2003
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Senior Member |
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>> Is there a way to call a Python script from within IDL and have it
>> return information to the IDL program? (Python is an object-oriented
>> scripting language similar to perl and java). I'm working on
>> visualizing huge amounts of data in an IDL widget, and a python script
>> to parse through this data is already in existance.
>> Thanks,
>> Leslie Welser
You could open a python process with SPAWN and then use shared memory to
send data between the processes. Since you're working on "huge amounts
of data," shared memory would probably be the easiest way to go. The
gotcha to this is that you will probably have to be careful how you
read/write data to the shared memory to make sure that values are
converted between IDL and Python correctly. Don't know if that helps or
not. Happy trails,
-Mike
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| Re: Calling a Python script from IDL [message #40064 is a reply to message #40003] |
Sun, 11 July 2004 11:03 |
cedricl
Messages: 8
Registered: July 2004
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Junior Member |
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It depends on how involved your script is. If you're on Unix, you
could maybe use a Unix pipe with the IDL command "spawn". Something
like "spawn, 'python myscript.py'". Look at the external development
guide.
I have never used a Unix pipe myself, so I'm not sure if they can
support "huge amounts of data", or how a Python program can manage
this data coming from the standard input...
Cedric
lwelser@physics.unr.edu (Leslie Welser) wrote in message news:<c870f808.0407070845.74d8e68c@posting.google.com>...
> Is there a way to call a Python script from within IDL and have it
> return information to the IDL program? (Python is an object-oriented
> scripting language similar to perl and java). I'm working on
> visualizing huge amounts of data in an IDL widget, and a python script
> to parse through this data is already in existance.
> Thanks,
> Leslie Welser
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