On 24 April 2018 at 16:30, David Wright <da...@lionunicorn.co.uk> wrote:
> On Tue 24 Apr 2018 at 08:53:01 (+0200), Gianmaria Lari wrote:
> > On 23 April 2018 at 15:48, David Wright <lily...@lionunicorn.co.uk>
> wrote:
> >
> > > On Mon 23 Apr 2018 at 09:43:01 (+0200), Gianmaria Lari wrote:
> > > > The following frescobaldi snippet call the "more.com" program with
> the
> > > > parameter "\\readme"
> > > >
> > > > -*- python;
> > > > from subprocess import call
> > > > call(["more.com", "\\readme"])
> > > >
> > > > This other one-line snippet pastes, in the frescobaldi editor window
> at
> > > the
> > > > cursor position, the lilypond file name (including path) of the
> current
> > > > document
> > > >
> > > > $FILE_NAME
> > > >
> > > > Now I would like to merge the two worlds:) I would like a snippet
> that
> > > > calls an external application passing as parameter $FILE_NAME.
> > > > Any suggestion?
> > >
> > > import os # likely to have been imported already
> > > call(["more.com", os.environ['FILE_NAME']])
> > >
> >
> > I have not been able to make it working.
> > Let's make a step back and simplify things.
> > Let's use FRESCOBALDI_VERSION that should always be defined (FILE_NAME is
> > not defined when the file has not been explicitly saved).
> > And let's use a simple assignement instead of an external call.
> >
> > The following code paste in the editor window the text "ciccio" at the
> > cursor position.....
> >
> > -*- python;
> >
> > text = "ciccio"
> >
> >
> >
> >
> > Now if I try....
> >
> > -*- python;
> > import os
> > text = os.environ['FRESCOBALDI_VERSION']
> >
> >
> > I expect to see pasted the frescobaldi version. But this does not work
> and
> > I get the errror.... KeyError: FRESCOBALDI_VERSION.
> > Maybe the variables are not part of os.environ?
>
> I think we're falling foul of this:
>
> This mapping is captured the first time the os module is imported,
> typically during Python startup as part of processing
> site.py. Changes to the environment made after this time are not
> reflected in os.environ, except for changes made by modifying
> os.environ directly.
>
> So if Fresco is running a child process, that child could interrogate
> the environment set by the parent. As it is, I don't know where your
> FRESCOBALDI_VERSION and FILE_NAME come from. If they're being set in
> a Fresco parent process, then they would have to be inserted into
> the environment for you to use them:
>
> $ pyth
> Python 3.5.3 (default, Jan 19 2017, 14:11:04)
> [GCC 6.3.0 20170118] on linux
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import os
> >>> os.environ["SHELL"]
> '/bin/bash'
> >>> os.environ["SPQR"]
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "/usr/lib/python3.5/os.py", line 725, in __getitem__
> raise KeyError(key) from None
> KeyError: 'SPQR'
> >>> os.environ["SPQR"]="Senatus Populusque Romanus"
> >>> os.environ["SHELL"],os.environ["SPQR"]
> ('/bin/bash', 'Senatus Populusque Romanus')
> >>>
>
> Cheers,
> David.
>
It's becoming a bit too difficult and for my need it does not worth it. I
would follow another way, Thank you David for your help!
g.
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