Fix Travis caching

hugovk · hugovk · commit ce7a513a7c99 · 2019-12-29T19:34:30.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,5 @@
 sudo: false
-cache:
-directories:
-- $HOME/.cache/pip
+cache: pip
 
 language: python
 
