- Add patch to work with python 3.8:

* python38.patch
- Restrict pytest to < 3.0 as the testing code does not work
  upstream on anything else

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-pygal?expand=0&rev=9

python38.patch

@@ -0,0 +1,30 @@
+From 45be172a9b5ce6fcf8bab89685ea88955192d474 Mon Sep 17 00:00:00 2001
+From: Dooley_labs <elderlabs@users.noreply.github.com>
+Date: Mon, 15 Jul 2019 04:57:57 -0400
+Subject: [PATCH] Patch Python 3.8 deprecation warning
+
+This warning has been plaguing me. This fixes it. Forever.
+```
+py.warnings:110 - .../pygal/_compat.py:23: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
+```
+---
+ pygal/_compat.py | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/pygal/_compat.py b/pygal/_compat.py
+index 07ab8846..2c6ab12b 100644
+--- a/pygal/_compat.py
++++ b/pygal/_compat.py
+@@ -20,8 +20,11 @@
+ from __future__ import division
+ 
+ import sys
+-from collections import Iterable
+ from datetime import datetime, timedelta, tzinfo
++try:
++    from collections.abc import Iterable
++except ImportError:
++    from collections import Iterable
+ 
+ if sys.version_info[0] == 3:
+     base = (str, bytes)