util.py 文件源码

def is_float(x):
    """Determine whether some object ``x`` is a
    float type (float, np.float, etc).

    Parameters
    ----------

    x : object
        The item to assess


    Returns
    -------

    bool
        True if ``x`` is a float type
    """
    return isinstance(x, (float, np.float)) or \
        (not isinstance(x, (bool, np.bool)) and isinstance(x, numbers.Real))