Decoder for primitive types in ctypes module #1276
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A realted topic is numpy and pandas types (any instance of public class NumpyDecoder : IPyObjectDecoder
{
public bool CanDecode(PyType objectType, Type targetType)
{
return targetType == typeof(double) && objectType.Name.StartsWith("numpy.float64");
}
public bool TryDecode<T>(PyObject pyObj, out T value)
{
value = (T)(object)pyObj.GetAttr("item").As<double>();
return true;
}
}Python.Runtime.PyObjectConversions.RegisterDecoder(NumpyDecoder())
xs = np.array([1.0, 2.0], dtype=np.float64)
lst = List[Double]()
lst.Add(xs[0]) # Fails
lst.Add(xs[0].item()) # WorksThis is also reported in #1887 See also https://stackoverflow.com/questions/9452775/converting-numpy-dtypes-to-native-python-types |
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ctypesis a standard Python module for interacting with fixed size integers. Would be nice to provide C# <-> Python conversions for types in that module.Relevant: https://stackoverflow.com/questions/63801150/how-do-i-pass-a-ulong-type-argument-to-a-c-sharp-function-from-python
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