Add missing poetry install

thibaudcolas · thibaudcolas · commit c4674df3ec72 · 2020-09-25T18:00:03.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -22,6 +22,7 @@ jobs:
         - npm run build
     - python: 3.8
       install:
+        - pip install poetry
         - poetry install
       script:
         - cp README.md docs/README.md
