Bug#1022469: python-pint: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p 3.10 returned exit code 13

[Michael Banck]

tags 1022469 +patch
thanks

Hi,

On Wed, Nov 23, 2022 at 07:48:47PM +1100, Stuart Prescott wrote:
> pint is incompatible with babel > 2.8; unfortunately, Debian now has babel
> 2.10.
> 
> So far, upstream has only noted the compatibility with version pinning.
> 
> https://github.com/hgrecco/pint/issues/1219
> 
> Upstream tests for newer releases of pint also now fail due to this same
> reason.

Looks like they got a work-around here in (since closed) PR #1401:
https://github.com/hgrecco/pint/commit/eb4e13428a3ede09148b76c71bc5b8cddb169176.patch
 
If I stick this (also attached) patch in, the testsuite passes fine.

> (and we should enable autopkgtest tests for pint and then this would have
> been caught as soon as babel > 2.8 was uploaded)

Yeah.


Michael

>From eb4e13428a3ede09148b76c71bc5b8cddb169176 Mon Sep 17 00:00:00 2001
From: Hernan <hernan.gre...@gmail.com>
Date: Wed, 27 Oct 2021 20:36:40 -0300
Subject: [PATCH] Support for babel > 2.8

Close #1400, #1219 and #1296.
---
 pint/formatting.py            | 11 ++++++++---
 pint/testsuite/test_issues.py |  8 ++++++++
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/pint/formatting.py b/pint/formatting.py
index a04205dd9..528f4e03e 100644
--- a/pint/formatting.py
+++ b/pint/formatting.py
@@ -333,9 +333,14 @@ def formatter(
                     # Don't remove this positional! This is the format used in Babel
                     key = pat.replace("{0}", "").strip()
                     break
-            division_fmt = compound_unit_patterns.get("per", {}).get(
-                babel_length, division_fmt
-            )
+
+            tmp = compound_unit_patterns.get("per", {}).get(babel_length, division_fmt)
+
+            try:
+                division_fmt = tmp.get("compound", division_fmt)
+            except AttributeError:
+                division_fmt = tmp
+
             power_fmt = "{}{}"
             exp_call = _pretty_fmt_exponent
         if value == 1:
diff --git a/pint/testsuite/test_issues.py b/pint/testsuite/test_issues.py
index ed781b72f..9d4167c02 100644
--- a/pint/testsuite/test_issues.py
+++ b/pint/testsuite/test_issues.py
@@ -824,6 +824,14 @@ def test_issue_1300(self):
         m = ureg.Measurement(1, 0.1, "meter")
         assert m.default_format == "~P"
 
+    def test_issue_1400(self, sess_registry):
+        q1 = 3 * sess_registry.W
+        q2 = 3 * sess_registry.W / sess_registry.cm
+        assert q1.format_babel("~", locale="es_Ar") == "3 W"
+        assert q1.format_babel("", locale="es_Ar") == "3 vatios"
+        assert q2.format_babel("~", locale="es_Ar") == "3.0 W / cm"
+        assert q2.format_babel("", locale="es_Ar") == "3.0 vatios por centímetros"
+
 
 if np is not None: