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dtype.isbuiltin

dtype.isbuiltin

Integer indicating how this dtype relates to the built-in dtypes.

Read-only.

0 if this is a structured array type, with fields
1 if this is a dtype compiled into numpy (such as ints, floats etc)
2 if the dtype is for a user-defined numpy type A user-defined type uses the numpy C-API machinery to extend numpy to handle a new array type. See User-defined data-types in the Numpy manual.

Examples

>>> dt = np.dtype('i2')
>>> dt.isbuiltin
1
>>> dt = np.dtype('f8')
>>> dt.isbuiltin
1
>>> dt = np.dtype([('field1', 'f8')])
>>> dt.isbuiltin
0
doc_NumPy
doc_NumPy
2017-01-10 18:08:27
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