Clarify the behavior of any() and all() with an empty iterable.
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 5ca6e42..a075afd 100644
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -17,7 +17,8 @@
.. function:: all(iterable)
- Return True if all elements of the *iterable* are true. Equivalent to::
+ Return True if all elements of the *iterable* are true (or if the iterable
+ is empty). Equivalent to::
def all(iterable):
for element in iterable:
@@ -30,7 +31,8 @@
.. function:: any(iterable)
- Return True if any element of the *iterable* is true. Equivalent to::
+ Return True if any element of the *iterable* is true. If the iterable
+ is empty, return False. Equivalent to::
def any(iterable):
for element in iterable: