Constraint coverage<5 in examples until I figure out why combining is borken.

Author: ionelmc

ci/templates/.travis.yml

@@ -35,7 +35,7 @@ jobs:
     - stage: examples
 {%- for example in ['src', 'adhoc'] %}{{ '' }}
     {%+ if not loop.first %}- {% else %}  {% endif -%}
-      python: '3.6'
+      python: '3.8'
       script: cd $TARGET; tox -v
       env:
           - TARGET=examples/{{ example }}-layout

examples/adhoc-layout/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = clean,py27,py36,report
+envlist = clean,py27,py38,report
 
 [tool:pytest]
 addopts =
@@ -10,21 +10,22 @@ commands = pytest --cov --cov-append --cov-config={toxinidir}/.coveragerc {posar
 deps =
     pytest
     pytest-cov
+    coverage<5
 depends =
-    {py27,py36}: clean
-    report: py27,py36
+    {py27,py38}: clean
+    report: py27,py38
 
 # note that this is necessary to prevent the tests importing the code from your badly laid project
 changedir = tests
 
 [testenv:report]
 skip_install = true
-deps = coverage
+deps = coverage<5
 commands =
     coverage html
     coverage report --fail-under=100
 
 [testenv:clean]
 skip_install = true
-deps = coverage
+deps = coverage<5
 commands = coverage erase

examples/src-layout/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = clean,py27,py36,report
+envlist = clean,py27,py38,report
 
 [tool:pytest]
 testpaths = tests
@@ -11,18 +11,19 @@ commands = pytest --cov --cov-append {posargs:-vv}
 deps =
     pytest
     pytest-cov
+    coverage<5
 depends =
-    {py27,py36}: clean
-    report: py27,py36
+    {py27,py38}: clean
+    report: py27,py38
 
 [testenv:report]
 skip_install = true
-deps = coverage
+deps = coverage<5
 commands =
     coverage html
     coverage report --fail-under=100
 
 [testenv:clean]
 skip_install = true
-deps = coverage
+deps = coverage<5
 commands = coverage erase