Update py37 to py38 for running-tests.rst

It should been done in https://review.opendev.org/#/c/752436/ but missing

Change-Id: Ib7f57e6e5897e25b8c33c6bdcb999cb7f64f10a6

1 files changed, 7 insertions, 7 deletions

diff --git a/doc/source/contributor/running-tests.rst b/doc/source/contributor/running-tests.rst
index 9adfca0a5..a793001b6 100644
--- a/doc/source/contributor/running-tests.rst
+++ b/doc/source/contributor/running-tests.rst
@@ -30,11 +30,11 @@ See the `unit testing <https://wiki.openstack.org/wiki/Testing#Unit_Tests>`__
 section of the Testing wiki page for more information.
 Following are some simple examples.
 
-To run the Python 3.7 tests:
+To run the Python 3.8 tests:
 
 .. code-block:: console
 
-    tox -e py37
+    tox -e py38
 
 To run the style tests:
 
@@ -46,7 +46,7 @@ To run multiple tests separate items by commas:
 
 .. code-block:: console
 
-    tox -e py37,pep8
+    tox -e py38,pep8
 
 Running a subset of tests
 -------------------------
@@ -59,27 +59,27 @@ To run the tests located only in the ``kolla/tests`` directory:
 
 .. code-block:: console
 
-    tox -e py37 kolla.tests
+    tox -e py38 kolla.tests
 
 To run the tests of a specific file say ``kolla/tests/test_set_config.py``:
 
 .. code-block:: console
 
-    tox -e py37 test_set_config
+    tox -e py38 test_set_config
 
 To run the tests in the ``ConfigFileTest`` class in
 the ``kolla/tests/test_set_config.py`` file:
 
 .. code-block:: console
 
-    tox -e py37 test_set_config.ConfigFileTest
+    tox -e py38 test_set_config.ConfigFileTest
 
 To run the ``ConfigFileTest.test_delete_path_not_exists`` test method in
 the ``kolla/tests/test_set_config.py`` file:
 
 .. code-block:: console
 
-    tox -e py37 test_set_config.ConfigFileTest.test_delete_path_not_exists
+    tox -e py38 test_set_config.ConfigFileTest.test_delete_path_not_exists
 
 Coverage Report Generation
 --------------------------