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| -rw-r--r-- | Doc/library/shelve.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/library/shelve.rst b/Doc/library/shelve.rst index 0252597..f5374c9 100644 --- a/Doc/library/shelve.rst +++ b/Doc/library/shelve.rst @@ -43,6 +43,11 @@ lots of shared sub-objects. The keys are ordinary strings. :meth:`close` explicitly when you don't need it any more, or use a :keyword:`with` statement with :func:`contextlib.closing`. +.. warning:: + + Because the :mod:`shelve` module is backed by :mod:`pickle`, it is insecure + to load a shelf from an untrusted source. Like with pickle, loading a shelf + can execute arbitrary code. Shelf objects support all methods supported by dictionaries. This eases the transition from dictionary based scripts to those requiring persistent storage. |