#169 SOAPBuilder.py: checkref() RecursionError problem

[kun1he2]

Using Python 2.4.3 with cygwin, SOAPpy version 0.12:

When calling a web service with more than one empty
string parameter, checkref() will assume that future
empty string are references of the first one encountered.

The subsequent RecursionError exception is then raised,
which doesn't seem to be handled by the caller.

At the present moment, I'm working around it by simply
returning an empty string '', instead of:

raise RecursionError, "Cannot serialize recursive
object"

Not sure if this simplistic workaround will cause other
issues to crop up.

[Gregory Warnes]

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Please provide an example.