Limit to tornado <6 for now

takluyver · takluyver · commit 9035cb1bdd2f · 2019-01-02T12:33:50.000Z
Tornado 6.0a1 is causing test failures in CI
diff --git a/setup.py b/setup.py
@@ -98,7 +98,7 @@
     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',
