PyScilab. Scilab into Python. Release 0.0.1: Acid apple.

[Rodrigo Benenson]

PyScilab. Scilab into Python.
Release 0.0.1: Acid apple.

This is an inmature release oriented to programmers who could help to 
the development of the package.
The code is functional but there are some topics missing.

The source code is aviable at:

http://pdilib.sf.net


If you don't know what is python nor scilab

http://www.scilab.org, the best free matrix computation package aviable.
http://www.python.org, the best free general use scripting language aviable.


README ---------------------------------------------------------------

PyScilab. Rodrigo Benenson. 2003. under GPL.

Release 0.0.1: THIS AN HACKER RELEASE, NOT RECOMENDED FOR END USERS

The main objective are:
	- allow to python devellopers to use a true matrix processing system.
	- allow the scilab users to use they function in other contexts.
	- to have a true pythonic interface.
	
The expected methods are:
	- init and destroy scilab sessions
	- create matrix, vectors, lists, (sciobjects in general)
	- automaticaly detect the aviable functions
	- offer a pythonic interface to call all of this functions
	- allow operators between sci objects
	- allow plotting

The aviables methods are:
	- init an scilab session
	- create matrix, vectors, numbers
	- allow pythonic scilab code calls
	- allow pythonic scilab data retreival

Example session (real example, with release 0.1):
	

	scilab = ScilabSession(SCI= os.getcwd() + '/scilab-2.7/', STAR = 
os.getcwd() + '/scilab.star', )
	
	print 'setting a, and b'
	a = [[1,2],[3,4]]
	b = [[5,6],[7,8]]
	scilab['a'] = a
	scilab['b'] = b
	print 'a:', scilab.get('a')
	print 'b:', scilab.get('b')
	print
	print 'calling "c= a + b"'
	scilab.call('c= a + b')
	print 'Obtaining the result'
	print 'c : ', scilab['c']
	print
	print 'calling "c= a * b"'
	scilab.call('c= a * b', a= [5,3], b= 2)
	print 'c : ', scilab['c']
	print
	print 'calling "e= svd(a), a = [1,2;3,4]"'
	scilab.call('e= svd(a)', a= a)
	print 'Obtaining the result'
	print 'e:', scilab['e']
	print


returns

	[rodrigob@localhost pyscilab]$ python2.2 ./pyscilab.py
	PyScilab test.
						==========
						scilab-2.7
			Copyright (C) 1989-2003 INRIA/ENPC
						==========
	
	Starting with exec("/home/rodrigob/projets/pyscilab/scilab.star",-1);quit;
	
	
	Startup execution:
	  loading initial environment
	setting a, and b
	a: [[ 1.  2.]
	 [ 3.  4.]]
	b: [[ 5.  6.]
	 [ 7.  8.]]
	
	calling "c= a + b"
	Obtaining the result
	c :  [[  6.   8.]
	 [ 10.  12.]]
	
	calling "c= a * b"
	c :  [[ 10.]
	 [  6.]]
	
	calling "e= svd(a), a = [1,2;3,4]"
	Obtaining the result
	e: [[ 5.4649857 ]
	 [ 0.36596619]]
	


Know bugs:

- Any window invoking function should crash the python (please fix it!)
- The instalation is tricky and will probably fail
- If the objects are not matrix, vectors or numbers, everything crash


Feedback:

This realease is an acid green apple. Please, help us, report a 
succesfull compilation, report an unsuccesfull compilation,
hack the setup.py to be more flexible, hack the code to allow plotting, 
report a successfull usage or just say hello.

Please fell free to mail any feedback at

rodrigob at elo dot utfsm dot cl


Other notes:

The development is made using Leo, the outline editor.
http://leo.sf.net

Look at the pyscilab.leo file for more info.