Merge pull request #1307 from kshtsk/beanstalkc3

beanstalk: switch to py3 compatible package

diff --cc setup.py
index 957ad2bb0ff12684112dc18cc3a99577d3c123a9,017ee209003a9b3aa605f00e7ac84e2b8b8c8dfd..4ab4e4bad75f004b4643dac78e05580f702ff4ec
--- 1/setup.py
--- 2/setup.py
+++ b/setup.py
@@@ -51,9 -51,11 +51,9 @@@ setup
      install_requires=['pip-tools',
                        'tox',
                        'gevent',
 -                      # For teuthology-coverage
 -                      'mysqlclient == 1.4.2',
                        'PyYAML',
                        'argparse >= 1.2.1',
-                       'beanstalkc >= 0.2.0',
+                       'beanstalkc3 >= 0.4.0',
                        'boto >= 2.0b4',
                        'bunch >= 1.0.0',
                        'configobj',