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| -rw-r--r-- | Doc/reference/datamodel.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst index 8793490..56eccc2 100644 --- a/Doc/reference/datamodel.rst +++ b/Doc/reference/datamodel.rst @@ -1262,6 +1262,7 @@ Basic customization explicitly set to :const:`None`. .. method:: object.__bool__(self) + .. index:: single: __len__() (mapping object method) Called to implement truth value testing, and the built-in operation ``bool()``; |