more syntax

Author: meejah

tox.ini

@@ -24,6 +24,9 @@ commands =
 deps =
     pyflakes >= 1.2.3
     coverage
+    twtrunk: git+https://github.com/twisted/twisted
+    tw21.2.0: twisted == 21.2.0
+    tw25.5.0: twistd == 25.5.0
 commands =
     pyflakes setup.py src
     coverage run --branch -m twisted.trial {posargs:wormhole_transit_relay}