commit f23746a934177c48eff754411aba54c31d6be2f0
author Yury Selivanov <yury@magic.io> Mon Jan 22 19:11:18 2018 -0500
committer GitHub <noreply@github.com> Mon Jan 22 19:11:18 2018 -0500
tree 4b32964b53fa87701f71c71937792f2489b7bbb4
parent 9089a265918754d95e105a7c4c409ac9352c87bb

bpo-32436: Implement PEP 567 (#5027)

Lib/asyncio/base_futures.py

diff --git a/Lib/asyncio/base_futures.py b/Lib/asyncio/base_futures.py
index 008812e..5182884 100644
--- a/Lib/asyncio/base_futures.py
+++ b/Lib/asyncio/base_futures.py
@@ -41,13 +41,13 @@
         return format_helpers._format_callback_source(callback, ())
 
     if size == 1:
-        cb = format_cb(cb[0])
+        cb = format_cb(cb[0][0])
     elif size == 2:
-        cb = '{}, {}'.format(format_cb(cb[0]), format_cb(cb[1]))
+        cb = '{}, {}'.format(format_cb(cb[0][0]), format_cb(cb[1][0]))
     elif size > 2:
-        cb = '{}, <{} more>, {}'.format(format_cb(cb[0]),
+        cb = '{}, <{} more>, {}'.format(format_cb(cb[0][0]),
                                         size - 2,
-                                        format_cb(cb[-1]))
+                                        format_cb(cb[-1][0]))
     return f'cb=[{cb}]'