⇤ ← Revision 1 as of 2003-01-09 21:36:44
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==== TypeError: bad argument type for built-in operation ==== | === TypeError: bad argument type for built-in operation === |
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=== TypeError: No to_python converter found for C++ type: <type> === === TypeError: No to_python (by-value) converter found for C++ type: <type> === BPL was unable to get C++ value from Python object. For example, when calling {{{ extract<int>(<object>.attr("__len__")()) }}} to get object length you omitted "'''()'''". |
["boost.python"] tries hard to provide best possible run-time errors. But often enough they need futher explanation. Some of them are mentioned below:
TypeError: bad argument type for built-in operation
Usualy means BPL couldn't find c++ method/function with appropriate signature. Very often that is wrong number of arguments, wrong argument(s) type and so on.
TypeError: No to_python converter found for C++ type: <type>
TypeError: No to_python (by-value) converter found for C++ type: <type>
BPL was unable to get C++ value from Python object.
For example, when calling extract<int>(<object>.attr("__len__")()) to get object length you omitted "()".