Try to cope with coverage 4➜5 DB format change

Author: wsanchez

.github/workflows/cicd.yml

@@ -229,7 +229,8 @@ jobs:
       - name: "Combine coverage"
         run: |
           set -eux
-          pip install coverage[toml];
+          # pip install coverage[toml];
+          pip install coverage==4.5.4;  # coverage 5.0 drops Python 3.4 support
           coverage combine;
           coverage xml;
         env:

tox.ini

@@ -263,6 +263,32 @@ commands =
     - coverage html
 
 
+##
+# Coverage combine (for CI)
+##
+
+[testenv:coverage_combine]
+
+description = combine coverage
+
+depends = {[coverage_report]depends}
+
+basepython = {[default]basepython}
+
+skip_install = True
+
+deps =
+    # coverage 5.0 drops Python 3.4 support
+    py{26,27,34,py2}: coverage==4.5.4  # rq.filter: <5
+    py{35,36,37,38,39,py3}: coverage==5.3.1
+
+setenv = {[coverage_report]setenv}
+
+commands =
+    coverage combine
+    coverage xml
+
+
 ##
 # Codecov
 ##