[docs] Update python version used for building docs

The docs verify job was failing because it wasn't able to install
dependencies.
The python version needs to be updated in order for the docs to be
successfully built.

Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>
Change-Id: I029fd377cce15f1fbe0ce38ed8a15424cce7bf4b

diff --git a/tox.ini b/tox.ini
index 8898266..d7b4d2a 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,7 @@ envlist =
 skipsdist = true
 
 [testenv:docs]
+basepython = python3
 deps = -rdocs/requirements.txt
 commands =
     sphinx-build -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
@@ -20,5 +21,6 @@ commands =
 whitelist_externals = echo
 
 [testenv:docs-linkcheck]
+basepython = python3
 deps = -rdocs/requirements.txt
 commands = sphinx-build -b linkcheck -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/linkcheck