On Thu, 4 Nov 2004 07:05:51 -0500, David Binger
 wrote:
>
> On Nov 4, 2004, at 6:39 AM, Michele Simionato wrote:
> > I also have a question/curiosity about
> > PTL files; I would imagine PTL
> > files to be converted into regular
> > python at import time and bytecompiled
> > once. So I would expect .pltc files to be
> > actually .pyc files. Is that true? And
> > if not, what is the difference?
> >
> They have the same format.

The same format, yes, but they are not the same animal.

If you follow these steps:

- write foo.ptl
- compile to foo.ptlc
- delete foo.ptl
- rename foo.ptlc to foo.pyc
- try to 'import foo'

you will get an ImportError, stating that there's a bad magic number in foo.pyc.

I've never really understood why this has to be the case. It would be
a bonus if ptlc == pyc, and might make it easier to deploy Quixote
apps under certain deployment conditions (e.g. zipimport, py2exe)
where .pyc files are expected.

-- Graham