On 8/7/22 01:37, lpsmith@uw.edu wrote:
Hello! I am maintaining a C++ codebase with extensive ties to Python bindings (via SWIG). One of the features of the code is that we define (in C) a subclass of a NumPy Array. Everything worked until we started getting this message with numpy 1.23:
RuntimeError: Object of type <class 'NamedArray'> appears to be C subclassed NumPy array, void scalar, or allocated in a non-standard way.NumPy reserves the right to change the size of these structures. Projects are required to take this into account by either recompiling against a specific NumPy version or padding the struct and enforcing a maximum NumPy version.
My problem is that I don't know how do to either of those things. I would have assumed that whatever I compiled against, it would always be compiled against a specific NumPy version, and I also assumed that 'enforcing a maximum NumPy version' would happen in requirements.txt for the Python package, but that also seems to not be the case. Any hints? Thank you!
-Lucian Smith
Did you rerun SWIG to regenerate the bindings before the 1.23 build? Matti