Subject: Re: bug#36518: [core-updates] python-boot0 fails to build on armhf and aarch64
From: Marius Bakke <[email-masked]>
To: Ricardo Wurmus <[email-masked]>
Cc: [email-masked]
Date: Sun, 07 Jul 2019 16:42:35 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Ricardo Wurmus <[email-masked]> writes:

> Hi Marius,
>
>> But the interpreter fails with 'unbound variable: this' upon running
>> glibcs Python scripts.
>
> This means it fell through to the case where “python” is called with
> more than one argument:
>
> --8<---------------cut here---------------start------------->8---
> (define* (main #:optional (args (command-line)))
>   (match args
>     ((_ file)
>      (let ((compiled (string-append file ".go")))
>        (compile-file file
>                      #:from python
>                      #:output-file compiled)
>        (load-compiled compiled)))
>     ((_)
>      (repl-default-option-set! 'prompt ">>> ")
>      (set! (@@ (system repl common) repl-welcome)
>            (const (display "\
> Python on Guile, version 0.1.0
> (Hit Ctrl-D to exit.)
> ")))
>      (start-repl python)
>      #t)
>     (_ (format (current-error-port)
>                "usage: ~a file.py~%" this))))
> --8<---------------cut here---------------end--------------->8---
>
> “this” was supposed to be the first match, i.e. the “python” executable
> itself.  Anyway, the problem is that “python” doesn’t handle any flags
> at all.  I’ll implement option “handling” soon (maybe we can ignore most
> options to “python”).

I pushed a workaround in 4f5fe46388eb70055b6935df053f74b7ccdaf55f, which
uses an older version of Python that can be built without threads.