Support manhole debugging

Add optional support for manhole to all cli tools. Activated by signal
USR1.

1 files changed, 3 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index 7cf6b32..7344470 100644
--- a/setup.py
+++ b/setup.py
@@ -20,6 +20,9 @@ setup(
         'yarl',
         'multidict',
     ],
+    extras_require={
+        'manhole': ['manhole>=1.6'],
+    },
     entry_points={
     'console_scripts': [
             'crocoite-grab = crocoite.cli:single',