+pip3 install --quiet behave nose pytidylib psycopg2-binary osmium
+
+# https://github.com/squizlabs/PHP_CodeSniffer
+composer global require "squizlabs/php_codesniffer=*"
+sudo ln -s /home/travis/.config/composer/vendor/bin/phpcs /usr/bin/
+
+composer global require "phpunit/phpunit=7.*"
+sudo ln -s /home/travis/.config/composer/vendor/bin/phpunit /usr/bin/