Add Python 3.13 test

Python 3.13 is part of the supported runtimes for 2026.1 release[1].

[1] https://governance.openstack.org/tc/reference/runtimes/2026.1.html

Change-Id: Ie0e926cca9219de67ce594df50c4aa010a9d4751
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

.zuul.d/zuul.yaml

@@ -7,6 +7,7 @@
         - rally-tox-py310
         - rally-tox-py311
         - rally-tox-py312
+        - rally-tox-py313
         - rally-dsvm-tox-functional
         - rally-openstack-docker-build
         #- rally-task-basic-with-existing-users
@@ -81,6 +82,7 @@
         - rally-tox-py310
         - rally-tox-py311
         - rally-tox-py312
+        - rally-tox-py313
         - rally-dsvm-tox-functional
         - rally-openstack-docker-build
         #- rally-task-basic-with-existing-users

CHANGELOG.rst

@@ -22,7 +22,7 @@ Changelog
 Added
 ~~~~~
 
-* CI jobs for checking compatibility with python 3.12
+* CI jobs for checking compatibility with python 3.12 and 3.13
 
 Removed
 ~~~~~~~

pyproject.toml

@@ -19,6 +19,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 dynamic = ["version", "dependencies"]
 requires-python = ">=3.10"

rally_openstack/environment/platforms/existing.py

@@ -395,7 +395,7 @@ class OpenStack(platform.Platform):
         env_vars_description = "\n".join(
             line for line in env_vars_docs.split("\n")[1:]
         )
-        doc += (f"\n **The following environment variables are expected for "
+        doc += (f"\n\n**The following environment variables are expected for "
                 f"creation a Rally environment using sustem environment "
                 f"variables**\n{env_vars_description}")
         return doc

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 minversion = 4.0.0
 ignore_basepython_conflict = true
-envlist = py310,py312,pep8
+envlist = py310,py313,pep8
 
 [testenv]
 extras = {env:RALLY_EXTRAS:}