Support Python 3.10 by adding anext signature.

eriknw · eriknw · commit da81b1e8ab96 · 2021-04-22T00:20:24.000-05:00
Fixes #512
diff --git a/.travis.yml b/.travis.yml
@@ -5,7 +5,8 @@ python:
     - "3.6"
     - "3.7"
     - "3.8"
-    - "3.9-dev"
+    - "3.9"
+    - "nightly"
     - "pypy3.5-7.0"
     - "pypy3.6-7.1.1"
 
diff --git a/toolz/_signatures.py b/toolz/_signatures.py
@@ -45,6 +45,9 @@
         lambda x: None],
     all=[
         lambda iterable: None],
+    anext=[
+        lambda aiterator: None,
+        lambda aiterator, default: None],
     any=[
         lambda iterable: None],
     apply=[
