From d90d1c1b8d9a16b1b59f235201ae862d639145d7 Mon Sep 17 00:00:00 2001 From: Georg Brandl Date: Mon, 26 Dec 2005 23:27:49 +0000 Subject: [PATCH] Bug #839075: document that highly recursive data cannot be pickled --- Doc/lib/libpickle.tex | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Doc/lib/libpickle.tex b/Doc/lib/libpickle.tex index cf526a069f0..99dd330e632 100644 --- a/Doc/lib/libpickle.tex +++ b/Doc/lib/libpickle.tex @@ -372,6 +372,10 @@ section~\ref{pickle-protocol} for details) Attempts to pickle unpicklable objects will raise the \exception{PicklingError} exception; when this happens, an unspecified number of bytes may have already been written to the underlying file. +Trying to pickle a highly recursive data structure may exceed the +maximum recursion depth, a \exception{RuntimeError} will be raised +in this case. You can carefully raise this limit with +\function{sys.setrecursionlimit()}. Note that functions (built-in and user-defined) are pickled by ``fully qualified'' name reference, not by value. This means that only the