Re: [Jython-dev] Jython glob/re modules

[Robert W. B. <rb...@di...>]

Seshu Nimmala wrote:
> Thanks finn. I downloaded the latest jython-2.0b1 and it
> imports the glob/re modules as stand-alone execution (at
> command line).
> 
> However, the glob module still cannot be imported when tried
> as below in Java code:
> Is there any special command to be used or something like
> special setting for PYTHONPATH or someother env
> variables to be used to run this Java source:
> Any help will be appreciated.
> Thanks.
> __________________________________________
> import org.python.util.PythonInterpreter;
> import org.python.core.*;
> import java.util.*;
> 
> public class
> PythonInterpreterTest{
>   PythonInterpreter interp =
>     new PythonInterpreter();
>    public void test() throws PyException  {
>     :
>     interp.exec("import glob");   //Cannot import glob here
>     interp.exec("files = glob.glob('*.java')");
> }
> }
> __________________________________________________

Hello  Seshu,
I tried a slightly modified version of your code
and it worked fine (in jython-2.0b1).  Here's what I used:
==========================================================
import org.python.util.PythonInterpreter;
import org.python.core.*;

public class
test{
    public static void main(String[] args) throws PyException {
	PythonInterpreter interp =
	    new PythonInterpreter();
	interp.exec("import glob");
	interp.exec("files = glob.glob('*.java')");
	interp.exec("print  files");
    }
}
===========================================================	
When I run this I get the output:
['test.java']

I'm curious what happens when you run something like this:
========================================================== 
import org.python.util.PythonInterpreter;
import org.python.core.*;

public class
test{
    public static void main(String[] args) throws PyException {
	PythonInterpreter interp =
	    new PythonInterpreter();
	interp.exec("import sys");
	interp.exec("print sys.path");
    }
}
===============================================================

For me, I get the following path, which is good because that is where
glob.py is:
['.', '/usr/local/jython-2.0b1/Lib']

This is just a guess, but I suspect that this path will be wrong for
you.   Could you have moved jython.jar out of it's installation
directory?  You can try running your test with- 
"java -Dpython.home=/path/to/jythondir test"

You can guaruntee that this path is correct by initializing a sys.path
list in your java file.  This example is from Finn Bock (tnx Finn for
your amazing work)- 
    
    Properties props = new Properties();
    props.setProperty("python.path", "/home/modules:scripts");
    PySystemState.initialize(System.getProperties(), props, 
                                 new String[] {""});

The value for python.path must follow the operating system conventions
for the PATH environment var (':' separator for unix, ';' for windows)

regards,
Robert