From c9eed708ee28bcdcf8550552b37ee5c51f70f0d6 Mon Sep 17 00:00:00 2001
From: Benjamin Ludwig <56023005+BenjaminLudwigSAP@users.noreply.github.com>
Date: Thu, 6 Oct 2022 10:55:57 +0200
Subject: [PATCH] Python 3.7: importlib-metadata<5.0

importlib-metadata 5.0 removed support for dict-style interaction with entrypoints [1]
This means that stevedore does not support this kind of interaction anymore as well [2] when used with Python 3.7, which is the only python version the third-party importlib-metadata package is required rather than the stdlib importlib.metadata package, as explained in [3]
A fix has been rolled out to stevedore [3], but it not in a release yet, so we need to manually constrain the importlib-metadata version, which is what this PR does.
This issue was found due to Octavia GitHub actions still using Python 3.7 [4]

[1] importlib-metadata commit removing support for dict-style interaction with entrypoints: https://github.com/python/importlib_metadata/commit/dde2b9de2973ce1c6fa9ba21dfe81069b0baa77b
[2] importlib-metadata 5.0 breaks stevedore: https://bugs.launchpad.net/python-stevedore/+bug/1991559
[3] Gerrit code review for stevedore fix: https://review.opendev.org/c/openstack/stevedore/+/860105
[4] Debugging of failing Octavia GitHub actions: https://convergedcloud.slack.com/archives/G6A1L7X6U/p1664966626308789
---
 upper-constraints.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/upper-constraints.txt b/upper-constraints.txt
index 705d4b8f7..fd5eb7e08 100644
--- a/upper-constraints.txt
+++ b/upper-constraints.txt
@@ -303,6 +303,7 @@ nodeenv===1.6.0
 gossip===2.4.0
 suds-community===1.0.0
 importlib-metadata===4.11.1;python_version=='3.8'
+importlib-metadata<5.0;python_version=='3.7'
 importlib-metadata===4.8.3;python_version=='3.6'
 oslo.middleware===4.5.1
 XStatic-mdi===1.6.50.2