Re: [Jython-users] AttributeError after sys.path.append

[Kevin J. B. <kev...@bi...>]

Frank,

Please don't crosspost between jython-dev and jython-users. The lists are 
separate to facilitate separate discussions (Development of Jython, vs. use of 
Jython).

Frank Cohen wrote:

[ adding .jar file to sys.path doesn't work ]
> Jython does not throw this AttributeError when testnetwork.jar IS on the
> classpath. The a object is instantiated correctly.
> 
> Any ideas what is going wrong?

Jython doesn't automatically load Java classes from sys.path - only from the 
Java class path.

You can use the jreload module to get what you want:

 >>> import jreload
 >>> jreload.makeLoadSet( "myset", ["d:/temp/testnetwork.jar"] )
<java load-set myset>
 >>> import myset
 >>> dir( myset.net.testnet )
['__name__', 'testit']
 >>> a = myset.net.testnet.testit()
I'm ready
 >>> a.drinkme()
'That was good.'
 >>>

And this should give you reloading as well, though that hasn't worked well for me.

Note also that there is a bug in 2.1 that large classes cause failures when 
using jreload - search the dev mailing list for details - I'm not sure if the 
patch has been integrated into CVS yet or not.

kb