add Travis test for invalid escape sequence
@@ -20,6 +20,7 @@ script:
- flake8 --config=.flake8.cython
- autopep8 -r . --global-config .pep8 --diff | tee check_autopep8
- test ! -s check_autopep8
+ - python -Werror::DeprecationWarning -m compileall -f -q cupy cupyx examples tests
- READTHEDOCS=True python setup.py develop
sudo: false
