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-rw-r--r--Doc/ref/ref3.tex3
1 files changed, 3 insertions, 0 deletions
diff --git a/Doc/ref/ref3.tex b/Doc/ref/ref3.tex
index 154af09..1fd68cb 100644
--- a/Doc/ref/ref3.tex
+++ b/Doc/ref/ref3.tex
@@ -1886,6 +1886,9 @@ method should be the equivalent to using \method{__floordiv__()} and
\method{__pow__()} should be defined to accept an optional third
argument if the ternary version of the built-in
\function{pow()}\bifuncindex{pow} function is to be supported.
+
+If one of those methods does not support the operation with the
+supplied arguments, it should return \code{NotImplemented}.
\end{methoddesc}
\begin{methoddesc}[numeric object]{__div__}{self, other}