numpy.sctype2char

numpy.sctype2char(sctype)[源代码]

Return the string representation of a scalar dtype.

Parameters:
sctype : scalar dtype or object

If a scalar dtype, the corresponding string character is returned. If an object, sctype2char tries to infer its scalar type and then return the corresponding string character.

Returns:
typechar : str

The string character corresponding to the scalar type.

Raises:
ValueError

If sctype is an object for which the type can not be inferred.

Examples

>>> for sctype in [np.int32, float, complex, np.string_, np.ndarray]:
...     print(np.sctype2char(sctype))
l
d
D
S
O
>>> x = np.array([1., 2-1.j])
>>> np.sctype2char(x)
'D'
>>> np.sctype2char(list)
'O'