gmane.comp.lang.jython.user

Anthony Kong | 1 Aug 03:38

Question about ihook

Hi, all,

Just a little bit of background, I am trying to run an existing application which use Webware 0.8 using jython.

Here is some stack trace:

    from AppServer import AppServer
File "C:\FPD\Webware-0.8.1\WebKit\AppServer.py", line 13, in <module>
    from ConfigurableForServerSidePath import ConfigurableForServerSidePath
File "C:\FPD\Webware-0.8.1\WebKit\ConfigurableForServerSidePath.py", line 1, i
n <module>
    from MiscUtils.Configurable import Configurable, NoDefault
File "C:\FPD\Webware-0.8.1\MiscUtils\Configurable.py", line 4, in <module>
    from WebKit.ImportSpy import modloader
File "C:\FPD\Webware-0.8.1\WebKit\ImportSpy.py", line 1, in <module>
    import ihooks
ImportError: No module named ihooks

So, I am just wondering

1) is there any workaround ?

2) why ihooks is not present? Is it due to any technical limitation (of java)?

Cheers

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Nicholas Riley | 1 Aug 21:55

Re: Question about ihook

In article 
<FB83E9898C8DDE4CA58DFFCA5CE455C802A0472F <at> ntsydexm03.pc.internal.macquar
ie.com>,
 "Anthony Kong" <Anthony.Kong <at> macquarie.com> wrote:

> ImportError: No module named ihooks
>  
> So, I am just wondering
> 1) is there any workaround ?
> 2) why ihooks is not present? Is it due to any technical limitation (of
> java)?

I was able to get past this by adding ihooks.py and fixing a constant so 
Jython could import it, but it revealed another problem.

Webware uses the marshal module, which is not supported in Jython.  This 
is not a recommended practice (see 
http://docs.python.org/lib/module-marshal.html); it may be possible to 
get Webware working by replacing it with the pickle module.

Note - this only applies to Webware 0.8.1; current versions of Webware 
choke during install because of a parser error:

  File "/Users/nicholas/zilles/Webware-0.9.4/DocSupport/pytp.py", line 
154, in process
    exec pi in scope
  File "<string>", line 2
   results = []
   ^
SyntaxError: line 2:0 mismatched input 'results' expecting INDENT 
(<string>, line 2)
--

-- 
Nicholas Riley <njriley <at> uiuc.edu>

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Anthony Kong | 2 Aug 01:20

Re: Question about ihook

Thanks Nicholas,

The doc generation was also a problem for me, so I simply by-passed it.

Just some follow-up questions to the mailing list:

1) the ihooks.py is present in the jython 2.2 svn repos, so any reason why it is not in 2.5a1?
2) If i used this ihooks.py, the Webware will run but will hit another problem: missing attribute C_BULITIN. So, what is this C_BUILTIN

Is it something easy to fix?

Cheers, Anthony

On Sat, Aug 2, 2008 at 5:55 AM, Nicholas Riley <njriley <at> uiuc.edu> wrote:

In article
<FB83E9898C8DDE4CA58DFFCA5CE455C802A0472F <at> ntsydexm03.pc.internal.macquar
ie.com>,
"Anthony Kong" <Anthony.Kong <at> macquarie.com> wrote:

> ImportError: No module named ihooks
>
> So, I am just wondering
> 1) is there any workaround ?
> 2) why ihooks is not present? Is it due to any technical limitation (of
> java)?

I was able to get past this by adding ihooks.py and fixing a constant so
Jython could import it, but it revealed another problem.

Webware uses the marshal module, which is not supported in Jython. This
is not a recommended practice (see
http://docs.python.org/lib/module-marshal.html); it may be possible to
get Webware working by replacing it with the pickle module.

Note - this only applies to Webware 0.8.1; current versions of Webware
choke during install because of a parser error:

File "/Users/nicholas/zilles/Webware-0.9.4/DocSupport/pytp.py", line
154, in process
exec pi in scope
File "<string>", line 2
results = []
^
SyntaxError: line 2:0 mismatched input 'results' expecting INDENT
(<string>, line 2)
--
Nicholas Riley <njriley <at> uiuc.edu>

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_______________________________________________
Jython-users mailing list
Jython-users <at> lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/jython-users

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Nicholas Riley | 2 Aug 01:58

Re: Question about ihook

In article 
<b0b163580808011620p2b15152cp3d230cab32b16c92 <at> mail.gmail.com>,
 "Anthony Kong" <anthony.hw.kong <at> gmail.com> wrote:

> Thanks Nicholas,
> 
> The doc generation was also a problem for me, so I simply by-passed it.
> 
> Just some follow-up questions to the mailing list:
> 
> 1) the ihooks.py is present in the jython 2.2 svn repos, so any reason why
> it is not in 2.5a1?

I don't see it in 2.2:

http://jython.svn.sourceforge.net/svnroot/jython/branches/Release_2_2main
t/jython/Lib/

> 2) If i used this ihooks.py, the Webware will run but will hit another
> problem: missing attribute C_BULITIN. So, what is this C_BUILTIN
> 
> Is it something easy to fix?

Yes, it's just a constant, easy enough to fix.

http://fisheye3.atlassian.com/browse/jython/branches/asm/src/org/python/m
odules/imp.java?r1=4914&r2=5041

If you're already on 2.5a1, just check out and build the asm branch; it 
will install ihooks.py.

One more thing I needed to change was 'whrandom' to 'random'; 'whrandom' 
is not available in CPython 2.5 either.
--

-- 
Nicholas Riley <njriley <at> uiuc.edu>

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