pandas.api.types.is_signed_integer_dtype

pandas.api.types.is_signed_integer_dtype(arr_or_dtype) [source]

Check whether the provided array or dtype is of a signed integer dtype.

Unlike in in_any_int_dtype, timedelta64 instances will return False.

Parameters:	arr_or_dtype : array-like The array or dtype to check.
Returns:	boolean : Whether or not the array or dtype is of a signed integer dtype and not an instance of timedelta64.

Examples

>>> is_signed_integer_dtype(str)
False
>>> is_signed_integer_dtype(int)
True
>>> is_signed_integer_dtype(float)
False
>>> is_signed_integer_dtype(np.uint64)  # unsigned
False
>>> is_signed_integer_dtype(np.datetime64)
False
>>> is_signed_integer_dtype(np.timedelta64)
False
>>> is_signed_integer_dtype(np.array(['a', 'b']))
False
>>> is_signed_integer_dtype(pd.Series([1, 2]))
True
>>> is_signed_integer_dtype(np.array([], dtype=np.timedelta64))
False
>>> is_signed_integer_dtype(pd.Index([1, 2.]))  # float
False
>>> is_signed_integer_dtype(np.array([1, 2], dtype=np.uint32))  # unsigned
False