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-rw-r--r--.travis.yml1
1 files changed, 1 insertions, 0 deletions
diff --git a/.travis.yml b/.travis.yml
index 662cde5..9df782d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
language: python
+cache: pip
# Environment changes have to be manually synced with 'tox.ini'.
# See: https://github.com/travis-ci/travis-ci/issues/3024