numpy.dtype.isbuiltin

dtype.isbuiltin

isbuiltin

Value identifying if numpy dtype is a numpy builtin type

Read-only

Returns:

val : {0,1,2}

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 the Guide to Numpy for details.

Examples

>>> dt = np.dtype('i2')
>>> dt.isbuiltin
1
>>> dt = np.dtype('f8')
>>> dt.isbuiltin
1
>>> dt = np.dtype([('field1', 'f8')])
>>> dt.isbuiltin
0