[melbourne-pug] Python, VB math simple problem

[Ryan Kelly]

> Ideally, I'd love to be able to simply have some extremely small
> executable that just accepts inputs
> does the calculations above and then spits out the outputs. If it were
> possible to write some
> simple lines of math code in Python and then compile these scripts in
> Python to a Windows
> compatible executable,that would be fantastic.

This is certainly possible, but the executable will definitely not be
small.  For such a streamlined task, I don't think it would be worth
trying to generate a separate executable.


Instead, why not have your VB program generate a python script that
performs the calculations?  Then you can just call the python
interpreter to execute that program. Like so: (dont know VB syntax
sorry)


  fp = open_file("do_my_calculations.py")
  write(fp,"<<python code that does calculations>>")
  write(fp,"<<python code that prints result to 'my_results.txt'>>")
  close_file(fp)
  execute("C:/Wherever/python.exe do_my_calculations.py")
  fp = open_file("my_results.txt")
  results = read(fp)


I hope that makes sense - have your VB program generate the python
program on-the-fly, then just run it through the interpreter.


> If it doesn't, how could I get VB to directly pass commands to the
> Python command line and then automatically
> extract the outputs? Shelling out from VB to Python would be tough to
> the command line I think, since the Python command line uses the
> 'Edit / Mark, Paste' approach to inserting, copy inputs, outputs and 
> this would be virtually untenable, as far as I can tell to automate
> in a VB shell out routine.

This is basically what I'm advocating, but write the program into a file
rather than try to interact directly with the python interpreter.


Hope that helps,


   Ryan


-- 
Ryan Kelly
http://www.rfk.id.au  |  This message is digitally signed. Please visit
ryan at rfk.id.au        |  http://www.rfk.id.au/ramblings/gpg/ for details

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