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Revision fd0351ae

Parent 9869e771
Child cdeda3b6

Added by Michael Hanselmann over 12 years ago

serializer: Fail if dictionary uses invalid keys

JSON only supports a very restricted set of types for dictionary keys,
among them strings, booleans and “null”. Integers and floats are
converted to strings. Since this can cause a lot of confusion in Python,
this check raises an exception if a caller tries to use such types.

Since the pre-Python 2.6 “simplejson” module doesn't support overriding
the function where the conversion takes place this check can only be
done for the newer “json” module.

Signed-off-by: Michael Hanselmann <>
Reviewed-by: René Nussbaumer <>


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