text analysis in python

[Maurice LING]

Terry Reedy wrote:

> "Maurice LING" <mauriceling at acm.org> wrote in message 
> news:424FF1CD.2040102 at acm.org...
> 
>>Say I code my  stuffs in Jython (importing java libraries) in a file 
>>"text.py"
> 
> 
> Just to be clear, Jython is not a separate langague that you code *in*, but 
> a separate implementation that you may slightly differently code *for*.
> 
Yes, I do get this point rightly. Jython is just an implementation of 
Python virtual machine using Java. I do note that there are some 
differences, such as, Jython can only handle pure python modules. 
However, I'm not a language expert to differentiate language differences 
between these 2 implementations of Python, as in Jython and CPython. If 
someone care to enlighten, it will be my pleasure to consult. TIA.

> 
>>... Will there be any issues when I try to import text.py into CPython?
> 
> 
> If text.py is written in an appropriate version of Python, it itself will 
> cause no problem.  Hoqwever, when it imports javacode files, as opposed to 
> CPython bytecode files, CPython will choke.
>
In my example, the file "text.py" is coded in Jython, importing Java 
libraries. I do get that I cannot import Java jar files directly into 
CPython. What I do not get is that what is so special about Jython that 
it can "fool" CPython into using Java libraries... or is that there will 
always be a need for Java virtual machine and Python virtual machine 
when I use Java libraries in Jython... and importing Jython coded files 
into CPython....

Cheers
Maurice