Limit to tornado <6 for now

takluyver · Zsailer · commit c1c393c606ce · 2019-09-25T16:56:35.000-07:00
Tornado 6.0a1 is causing test failures in CI
diff --git a/setup.py b/setup.py
@@ -74,7 +74,7 @@
     zip_safe = False,
     install_requires = [
         'jinja2',
-        'tornado>=4',
+        'tornado>=4, <6',
         # pyzmq>=17 is not technically necessary,
         # but hopefully avoids incompatibilities with Tornado 5. April 2018
         'pyzmq>=17',
