Quesion about running a exe file in Python(Not enough memory)

[Dave Angel]

On 04/25/2013 05:18 PM, yuyaxuan0 at gmail.com wrote:
> Hey guys,
>
> I have a python script that will call an external exe file. Code is kind of like this:
>

This is a perfect example where you can simplify the problem down to a 
few lines that fail for you, and actually document the environment and 
the results.



>      #cmd = "D:\\programs\\MIRAX_SlideAC_SDK\\Bin\\MrxSlideExport.exe -s D:\\fit\\projects\\bayer\\KidneyLiver\\MiraxScanner\\Slides\\L10 -e -o D:\\fit\\projects\\bayer\\KidneyLiver\\MiraxScanner\\Output\\L10 -z 5 -f png"
>      #os.system(cmd)
>      #msg = os.popen(cmd, mode='r', buffering=-1) # does not work

That's a useless statement.  What you really should be saying is:  I ran 
exactly xxx, and it formatted my neighbor's D: drive.  Or you should 
skip that, and just concentrate on the ancient os.system() you're asking 
about.  BTW, any reason you're not using the multiprocess module?  It 
can simplify a lot of things, for example, bypassing the shell, so you 
know what the child program is really getting as parameters.

>      cmd = cmdForExportingSlicesToTiles + " -s " + slicePath + " -o " + pathToResultData
>      print(cmd)
>      os.system(cmd)
>
> So the problem is that is says it doesn't have sufficient memory.

Who says?  At what point do they say it?  Show us a transcript of 
exactly what you do to see this message, and actually show the message.


You probably could simplify this to 5 lines:

import os
cmd = "some literal string with lots of options"
print "About to launch program"
print cmd
os.system(cmd)

Then you run it from the cmd line, and copy/paste the results into your 
mnext message.

C:\Somedir\ > python  myprog.py
About to launch program
some literal...

Some message that might mention running out of memory...

Naturally, you should specify your Python version, your OS version, and 
any other variables you can think of.

-- 
DaveA