running an existing script

[Adam Chapman]

On Jun 21, 9:12 pm, Adam Chapman <adamchapman1... at hotmail.co.uk>
wrote:
> On Jun 21, 8:00 pm, Ethan Furman <et... at stoneleaf.us> wrote:
>
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> > Adam Chapman wrote:
> > > Thanks Ethan
>
> > > No way could I have worked that out in my state of stress!
>
> > > For your second idea, would I need to type that into the python command
> > > line interface (the one that looks like a DOS window?
>
> > If you are actually in a python CLI, at the top of that screen does it
> > say something like
>
> > Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit
> > (Intel)] on win32
> > Type "help", "copyright", "credits" or "license" for more information.
>
> > ?
>
> > If yes, then what I wrote earlier should actually work (I downloaded
> > jBoost and looked at the nfold.py script).  Here it is again:
>
> > --> import os
> > --> os.chdir('path/to/nfold.py') # don't include nfold.py  ;)
> > --> import nfold
> > --> import sys
> > --> sys.argv = ["nfold.py", "--folds=5", "--data=spambase.data",
> > ... "--spec=spambase.spec", "--rounds=500", "--tree=ADD_ALL",
> > ... "--generate" ]
> > ...
> > --> nfold.main()
>
> > I fixed the sys.argv line from last time.
>
> > Good luck!
>
> > ~Ethan~
>
> Thanks to both of you for your help.
>
> It's getting late here, I'll give it another try tomorrow

I've added the python directories to the environment variable "path"
in my computer (http://showmedo.com/videotutorials/video?
name=960000&fromSeriesID=96), which means I can now call python from
the windows DOS-style command prompt.

My formatting must be wrong when calling the nfold.py script to run.
My connad prompt call and the computer's response look like this:

C:\Users\Adam\Desktop\JBOOST\jboost-2.2\jboost-2.2\scripts>nfold.py
nfold.py
  File "C:\Users\Adam\Desktop\JBOOST\jboost-2.2\jboost-2.2\scripts
\nfold.py", line 13
    print 'Usage: nfold.py <--booster=boosttype> <--folds=number> [--
generate | --dir=dir] [--data=file --spec=file] [--rounds=number --
tree=treetype]'
 
^
SyntaxError: invalid syntax


What I dont understand is that some of the parameters in the syntax it
printed back are in <> brackets, and others in [] brackets.

I assume this is something a regular python user could notice straight
away.

Please let me know, I'd be very grateful