Re: Managing environments (Python venv, guix environment, etc.)

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Date: Fri, 29 Jul 2016 15:20:11 -0400
> 
> >> AFAIK jka-compr.el works fine.
> > Because it takes great care not to touch anything that changes the
> > semantics of file names: the file name still behaves the same with and
> > without jka-compr.  By contrast, AFAIU environments cannot do that by
> > their very nature.
> 
> I think environments implemented via file-name-handlers-alist would only
> affect process-file, start-file-process, and maybe a couple more
> functions, and wouldn't otherwise "change the semantics of file names"
> any more than jka-compr.

They must change the semantics, because there's no other way of making
an environment be a property of a file name.  Look at the syntax
suggested for that, and you will see it.  A file 'foo' will no longer
be called 'foo', but something else.