I have a utility lib in C++ created with 'gr_modtool add noblock' that has
a function that returns a vector of pmt::pmt_t values.  I need to then be
able to access the elements of that vector via Python.  Right now I get the
following error when using a for loop to iterate over the vector:


TypeError: 'SwigPyObject' object is not iterable
swig/python detected a memory leak of type 'std::vector<
boost::intrusive_ptr< pmt::pmt_base >,std::allocator< boost::intrusive_ptr<
pmt::pmt_base > > > *', no destructor found.


How does one iterate over the elements of a std::vector<pmt::pmt_t> in
Python?

Thanks!
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