[tests] Add Python 3.9 to travis test matrix

Change-Id: I15f32866ebf6dd601d229f7512a48d45a34d01f0
---
M .travis.yml
1 file changed, 4 insertions(+), 0 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index fa6e8d8..443ea38 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -157,9 +157,13 @@
       env: LANGUAGE=wikidata FAMILY=wikidata PYWIKIBOT_SITE_ONLY=1
     - python: '3.8'
       env: LANGUAGE=uk FAMILY=wowwiki PYWIKIBOT_TEST_NO_RC=1
+    - python: '3.9-dev'
+      env: LANGUAGE=test FAMILY=wikipedia PYWIKIBOT_SITE_ONLY=1
   allow_failures:
     - python: '3.8'
       env: LANGUAGE=uk FAMILY=wowwiki PYWIKIBOT_TEST_NO_RC=1
+    - python: '3.9-dev'
+      env: LANGUAGE=test FAMILY=wikipedia PYWIKIBOT_SITE_ONLY=1
 
 notifications:
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