Issue2473

hi team,
ii would like to know the  max file size of the .py files and also methods size inside the .py files supported by jython version 2..5.2.

 ./jython
Jython 2.5.2 (Release_2_5_2:7206, Mar 2 2011, 23:12:06)
[Java HotSpot(TM) Client VM (Oracle Corporation)] on java1.7.0_51
Type "help", "copyright", "credits" or "license" for more information.

Maximum size is dictated by the underlying Java class file format.

Hi Jim,

Thanks for the response.

So that means there is no max size limit for .py file and size is dictated by the application which converts the .py file to .class file.
Is my understanding correct?.

Regards,
Raj

Hi Jim,

We have gone through the ticket http://bugs.jython.org/issue1891

Which is similar to the case specified in current ticket.

As per the ticket 1891, Splitting the larger methods (Inside .py files) in to small peices will work, But this is just a work around.
Even we followed the same procedure of splitting the content of .py file, And in fact it's working in our customer server (O2 UK).

And also it was specified in the ticket (1891), Issue will get solved if the jython version is 2.7 without applying work around(Splitting of method content).

Based on the above can we suggest our customer to upgrade from jython 2.5.2 to jython 2.7.

Regards,
Megha

In general, 2.7.0 does a better job with large methods than 2.5.x, due to collection literal splitting, which is by far the most common case, as seen in the discussion of #1891. In most cases, such large methods are code generated and are usually quite simple.

However, not all large modules are so simple. So I'm aware of one specific case, Ply, which generates too large methods that neither use splittable literals; and is non trivial to split. It requires #527524 to be solved.

There is a workaround, which is to compile to Python bytecode, and then use pycimport, but this is considered *experimental* at this time. It will be supported at some point in the 2.7.x dev lifecycle, but it has not been prioritized (ie, not likely to be in 2.7.2).

Hope that helps!