o Tj@sXdZddlmZdgZddZddZdd Zd d Zd d Z ddZ GdddZ dS)zG Mixin classes for custom array types that don't inherit from ndarray. )umathNDArrayOperatorsMixincCs"z|jduWStyYdSw)z)True when __array_ufunc__ is set to None.NF)__array_ufunc__AttributeError)objrS/home/dinkstrade/pdmp-scanner/venv/lib/python3.10/site-packages/numpy/lib/mixins.py_disables_array_ufunc s   r cfdd}d||_|S)z>Implement a forward binary method with a ufunc, e.g., __add__.cst|rtS||SNr NotImplementedselfotherufuncrrfunc z_binary_method..func__{}__format__name__rnamerrrr_binary_method  rcr )zAImplement a reflected binary method with a ufunc, e.g., __radd__.cst|rtS||Sr r rrrrrrz&_reflected_binary_method..funcz__r{}__rrrrr_reflected_binary_methodrrcr )zAImplement an in-place binary method with a ufunc, e.g., __iadd__.cs|||fdS)N)outrrrrrr(sz$_inplace_binary_method..funcz__i{}__rrrrr_inplace_binary_method&  rcCst||t||t||fS)zEImplement forward, reflected and inplace binary methods with a ufunc.)rrr)rrrrr_numeric_methods.sr!cr )z.Implement a unary special method with a ufunc.cs|Sr r)rrrrr7sz_unary_method..funcrrrrrr _unary_method5r r"c@seZdZdZdZeejdZeej dZ eej dZ eej dZeejdZeejdZeejd \ZZZeejd \ZZZeejd \ZZZeej d \Z!Z"Z#eej$d \Z%Z&Z'eej(d\Z)Z*Z+eej,d\Z-Z.Z/eej0dZ1e2ej0dZ3eej4d\Z5Z6Z7eej8d\Z9Z:Z;eejZ?eej@d\ZAZBZCeejDd\ZEZFZGeejHd\ZIZJZKeLejMdZNeLejOdZPeLejQdZReLejSdZTdS)ra Mixin defining all operator special methods using __array_ufunc__. This class implements the special methods for almost all of Python's builtin operators defined in the `operator` module, including comparisons (``==``, ``>``, etc.) and arithmetic (``+``, ``*``, ``-``, etc.), by deferring to the ``__array_ufunc__`` method, which subclasses must implement. It is useful for writing classes that do not inherit from `numpy.ndarray`, but that should support arithmetic and numpy universal functions like arrays as described in `A Mechanism for Overriding Ufuncs `_. As an trivial example, consider this implementation of an ``ArrayLike`` class that simply wraps a NumPy array and ensures that the result of any arithmetic operation is also an ``ArrayLike`` object: >>> import numbers >>> class ArrayLike(np.lib.mixins.NDArrayOperatorsMixin): ... def __init__(self, value): ... self.value = np.asarray(value) ... ... # One might also consider adding the built-in list type to this ... # list, to support operations like np.add(array_like, list) ... _HANDLED_TYPES = (np.ndarray, numbers.Number) ... ... def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): ... out = kwargs.get('out', ()) ... for x in inputs + out: ... # Only support operations with instances of ... # _HANDLED_TYPES. Use ArrayLike instead of type(self) ... # for isinstance to allow subclasses that don't ... # override __array_ufunc__ to handle ArrayLike objects. ... if not isinstance( ... x, self._HANDLED_TYPES + (ArrayLike,) ... ): ... return NotImplemented ... ... # Defer to the implementation of the ufunc ... # on unwrapped values. ... inputs = tuple(x.value if isinstance(x, ArrayLike) else x ... for x in inputs) ... if out: ... kwargs['out'] = tuple( ... x.value if isinstance(x, ArrayLike) else x ... for x in out) ... result = getattr(ufunc, method)(*inputs, **kwargs) ... ... if type(result) is tuple: ... # multiple return values ... return tuple(type(self)(x) for x in result) ... elif method == 'at': ... # no return value ... return None ... else: ... # one return value ... return type(self)(result) ... ... def __repr__(self): ... return '%s(%r)' % (type(self).__name__, self.value) In interactions between ``ArrayLike`` objects and numbers or numpy arrays, the result is always another ``ArrayLike``: >>> x = ArrayLike([1, 2, 3]) >>> x - 1 ArrayLike(array([0, 1, 2])) >>> 1 - x ArrayLike(array([ 0, -1, -2])) >>> np.arange(3) - x ArrayLike(array([-1, -1, -1])) >>> x - np.arange(3) ArrayLike(array([1, 1, 1])) Note that unlike ``numpy.ndarray``, ``ArrayLike`` does not allow operations with arbitrary, unrecognized types. This ensures that interactions with ArrayLike preserve a well-defined casting hierarchy. rltleeqnegtgeaddsubmulmatmultruedivfloordivmoddivmodpowlshiftrshiftandxorornegposabsinvertN)Ur __module__ __qualname____doc__ __slots__rumless__lt__ less_equal__le__equal__eq__ not_equal__ne__greater__gt__ greater_equal__ge__r!r)__add____radd____iadd__subtract__sub____rsub____isub__multiply__mul____rmul____imul__r, __matmul__ __rmatmul__ __imatmul__ true_divide __truediv__ __rtruediv__ __itruediv__ floor_divide __floordiv__ __rfloordiv__ __ifloordiv__ remainder__mod____rmod____imod__r0 __divmod__r __rdivmod__power__pow____rpow____ipow__ left_shift __lshift__ __rlshift__ __ilshift__ right_shift __rshift__ __rrshift__ __irshift__ bitwise_and__and____rand____iand__ bitwise_xor__xor____rxor____ixor__ bitwise_or__or____ror____ior__r"negative__neg__positive__pos__absolute__abs__r: __invert__rrrrr=sLO                N) r= numpy._corerr?__all__r rrrr!r"rrrrrs