[C++-sig] vector_indexing_suite and std::string

[greg Landrum]

The attached files create and test an extension module that uses the indexing_suite to return std::vectors containing ints and std::strings to Python.  The int vectors work just  fine, but the std::string vectors generate:
TypeError: No Python class registered for C++ class std::string
errors when the individual elements are accessed.

It's clearly not a problem with returning std::strings, because the bareString() function does that without any difficulties.

Ron Clarke posted about this a couple of weeks ago: 
http://mail.python.org/pipermail/c++-sig/2004-March/006966.html
but no solution or work-around was provided, so I figured I'd try again.

System details:
Boost: 1.31
Python: 2.2.3
OS: both Redhat8.0 (g++ v3.2)and Win2K (VC++ 7.1)

Thanks,
-greg
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