[Jython-users] reload command

[Rasmus F. <rh...@mo...>]

Dear Jython users,

If I do module1=reload(module1) and module1 contains the statement
'import module2', should the reload statement automatically reload
module2? If not, how can I make sure that all imported modules are
reloaded?

ObjectDomain has embedded Jython in their UML modelling program, and in
their newest version reloading module1 does *not* reload module2 in this
situation. ObjectDomain support claims that the reason is their recent
change from Jython 1.2 to Jython 2.0, and that *not* reloading mocule2 in
the above situation is correct behaviour. Is this true?

Thanks for your help,

Rasmus

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Appendix - Painfully detailed description of the problem follows:

The system properties are:
 Java: IBM corporation, 1.3.0, downloaded bundled with ObjectDomain.
OS: arch x86, Linux, 2.2.17-21mdk
Java Class Version 46.0, compiler jitc
ObjectDomain version 3.00.203


My test files are the following:

test.py:
import subtest
def dotest():
  print 'Original version'

subtest.py:
def dosubtest():
  print 'Original subversion'


The behaviour observed is:

Open ObjectDomain
type 'import test' in python shell window.
test.dotest() prints 'Original version'
test.subtest.dosubtest() prints 'Original subversion'

Now edit test.py and subtest.py to print 'Modified (sub)version'

Restart python interpreter (green flag icon).
import test.py, either using up-arrow to get the 'import test' command,
       or typing in 'import test' directly.
test.dotest() prints 'Original version'
test.subtest.dosubtest() prints 'Original subversion'

type 'test = reload(test)'
test.dotest() prints 'Modified version'
test.subtest.dosubtest() prints 'Original subversion'


This behaviour means that you are forced to exit and re-enter the program
if you modify a script that is imported through another script - surely
this cannot be the intention.

---------------------------------------------------------------------------
Dr. Rasmus H. Fogh                  Email: r.h...@bi...
Dept. of Biochemistry, University of Cambridge,
80 Tennis Court Road, Cambridge CB2 1GA, UK.     FAX (01223)766002