Re: Problems with call-process (= identifying run-python issues)

[Eli Zaretskii <eliz@gnu.org>]

> From: Juan José García-Ripoll <juanjose.garciaripoll@gmail.com>
> Date: Tue, 18 Aug 2020 15:36:23 +0200
> 
> I am running into a weird issue in Windows 10, both with Emacs 27 and
> Emacs 26.3. It all boils down to whether Emacs is invoked from the
> command line or not. In one case, subprocesses get their input properly
> redirected, in other cases not. All tests are done with plain vanilla
> Emacs, using core libraries (no programming mode).
> 
> My test files are below. Essentially, the file test.el is trying to
> imitate what python.el uses to call a python process, but instead of
> that, it uses a simple copycat script that copies the input stream to
> the output stream.

Could you please present a complete recipe for reproducing the
problems, starting from "runemacs -Q"?  I got confused by the test
files.  Can this be done without involving Python, for example?

Thanks.