bug#26610: python-gpg broke; python-gpg 1.9.0 does not exist

[Ivan Vilata i Balaguer <ivan@selidor.net>]

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Leo Famulari (2017-05-27 10:11:46 -0400) wrote:

> You can try changing the python-gpg package's version to the last
> available upstream version. On PyPi, that's 1.8.0.
> 
> Then, try rebuilding the packages that depend on python-gpg (`guix
> refresh -l python-gpg python2-gpg`).
> 
> Hopefully it all works. Then, you can send a patch with your fix :)
> 
> Let us know if you need help!

Ok, attaching the patch.  These are the steps I followed to test it:

 0. Apply the patch.

 1. Add ``python-gpg`` at the end of ``gnu/packages/gnupg.scm`` (sorry
    for my poor Scheme habilities).

 2. Run ``guix environment --ad-hoc -l gnu/packages/gnupg.scm python
    assword coreutils``.

 3. Import ``gpg`` in Python and check ``gpg.version.versionstr``, dump
    ``assword`` program to verify that it uses the same build of
    ``python-gnupg``.

 4. Run ``assword`` and check that everything works.

Probably many steps can be done better/more easily, but my knowledge is
very limited.  Links for improving that are welcome.`;)`

Thanks and cheers,

-- 
Ivan Vilata i Balaguer -- https://elvil.net/

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From bef8ccca58150ad4714cfa65472d5f2e9ae7b283 Mon Sep 17 00:00:00 2001
From: Ivan Vilata-i-Balaguer <ivan@selidor.net>
Date: Thu, 1 Jun 2017 10:33:09 +0200
Subject: [PATCH] gnu: python-gpg: Use explicit version 1.8.0 instead of
 GPGME's.

GPGME defines version 1.9.0, which isn't yet available for python-gnupg, whose
latest version is 1.8.0, so we use that explicitly instead.  Fixes #26610.

* gnu/packages/gnupg.scm (python-gpg): Use explicit version 1.8.0 instead of GPGME's.
---
 gnu/packages/gnupg.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/packages/gnupg.scm b/gnu/packages/gnupg.scm
index 440e7d550..c2b02789b 100644
--- a/gnu/packages/gnupg.scm
+++ b/gnu/packages/gnupg.scm
@@ -410,7 +410,7 @@ and every application benefits from this.")
 (define-public python-gpg
   (package
     (name "python-gpg")
-    (version (package-version gpgme))
+    (version "1.8.0")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "gpg" version))
-- 
2.12.2