Re: Lilypond-book problem

[David Wright]

On Tue 06 Sep 2022 at 11:19:28 (+0200), Rip _Mus wrote:
> Il giorno lun 5 set 2022 alle ore 19:06 Knute Snortum ha scritto:
> > On Sun, Sep 4, 2022 at 10:26 PM Rip _Mus wrote:
> > >> On Sun, Sep 4, 2022 at 9:06 AM Rip _Mus wrote:

> > >> > I have installed the version 2.22.1, wich I used for a lot of big
> > project.
> > >> > A lot of times I tried to open terminal and run "lilypond-book" but
> > without success. I already add the folder "...\usr\bin" to the
> > environmental variabile path, in fact the command "lilypond" runs.
> > >> > Someone could help me?

> > > thanks for the reply!  You're right, I could have added a few more
> > details.
> > > The operating system is Windows 10. For using Lilypond on command line,
> > I followed the instructions on the site.
> > > I added the folder "C:Program Files (x86)\LilyPond\usr\bin" to the
> > environmental variable “Path”.
> > >  I think I followed them well, as the "ilypond" command works.  The
> > other commands "lilypond-book" and "convert-ly" instead give me the
> > following message:
> > >
> > > 'lilypond-book' is not recognized as an internal or external command
> > >
> > > What I notice is that in the folder in question there are lilypond-book
> > and convert-ly scripts, but they are without extension (for example * .py)
> > >
> > > What do you think about?

> > Well, I had the same experience as you.  One solution is to type:
> >
> >     python3 "C:Program Files (x86)\LilyPond\usr\bin\lilypond-book"
> >
> > You could put that in a batch file somewhere in your PATH.  There may
> > be other solutions too.

> Ok!
> I tried and it works very well!
> Another solution is to add the extension ".ly" to the file name and then
> the command runs.

More likely you added .py ?

> I don't understand why it is not the way described in Lilypond manuals.
> Anyway, thank you so much for your help!

The archetypal system for Lilypond is un*x/linux, so the documentation
reflects that. Where Windows differs, that's often pointed out. See,
for example, Usage §2.2 Invoking convert-ly.

Unfortunately, the principal reference for Windows on the Command Line
doesn't mention this difference or give an example (lilypond itself is
a real EXE file, whereas all the support programs are Python scripts):

https://lilypond.org/windows.html

web.pdf page number 44, physical page 46.

Perhaps the reason is that the documentation writer(s) had set their
environment variable PATHEXT to include .py (or should it be .PY ?)
long ago, and have forgotten about it:

https://www.nextofwindows.com/what-is-pathext-environment-variable-in-windows

But sometimes that appears not to be the answer either:

https://superuser.com/questions/1619580/pathext-environment-variable-not-working

--

In researching this, I noticed that, on the web, the target of
https://lilypond.org/doc/v2.23/Documentation/web-big-page.html#windows
appears to be Nicolas Sceaux's use of LP, whereas the 2.23.12 version
on my system points to the correct place in the page, corresponding to:

https://lilypond.org/windows.html

Disclaimer: I don't use Windows, so all is hypothetical.

Cheers,
David.