diff options
Diffstat (limited to 'Doc/reference/datamodel.rst')
| -rw-r--r-- | Doc/reference/datamodel.rst | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst index 78dfd79b00..e46688e914 100644 --- a/Doc/reference/datamodel.rst +++ b/Doc/reference/datamodel.rst @@ -1968,6 +1968,7 @@ left undefined. .. method:: object.__add__(self, other) object.__sub__(self, other) object.__mul__(self, other) + object.__matmul__(self, other) object.__truediv__(self, other) object.__floordiv__(self, other) object.__mod__(self, other) @@ -1984,15 +1985,16 @@ left undefined. builtin: pow builtin: pow - These methods are called to implement the binary arithmetic operations (``+``, - ``-``, ``*``, ``/``, ``//``, ``%``, :func:`divmod`, :func:`pow`, ``**``, ``<<``, - ``>>``, ``&``, ``^``, ``|``). For instance, to evaluate the expression - ``x + y``, where *x* is an instance of a class that has an :meth:`__add__` - method, ``x.__add__(y)`` is called. The :meth:`__divmod__` method should be the - equivalent to using :meth:`__floordiv__` and :meth:`__mod__`; it should not be - related to :meth:`__truediv__`. Note that :meth:`__pow__` should be defined - to accept an optional third argument if the ternary version of the built-in - :func:`pow` function is to be supported. + These methods are called to implement the binary arithmetic operations + (``+``, ``-``, ``*``, ``@``, ``/``, ``//``, ``%``, :func:`divmod`, + :func:`pow`, ``**``, ``<<``, ``>>``, ``&``, ``^``, ``|``). For instance, to + evaluate the expression ``x + y``, where *x* is an instance of a class that + has an :meth:`__add__` method, ``x.__add__(y)`` is called. The + :meth:`__divmod__` method should be the equivalent to using + :meth:`__floordiv__` and :meth:`__mod__`; it should not be related to + :meth:`__truediv__`. Note that :meth:`__pow__` should be defined to accept + an optional third argument if the ternary version of the built-in :func:`pow` + function is to be supported. If one of those methods does not support the operation with the supplied arguments, it should return ``NotImplemented``. @@ -2001,6 +2003,7 @@ left undefined. .. method:: object.__radd__(self, other) object.__rsub__(self, other) object.__rmul__(self, other) + object.__rmatmul__(self, other) object.__rtruediv__(self, other) object.__rfloordiv__(self, other) object.__rmod__(self, other) @@ -2016,14 +2019,14 @@ left undefined. builtin: divmod builtin: pow - These methods are called to implement the binary arithmetic operations (``+``, - ``-``, ``*``, ``/``, ``//``, ``%``, :func:`divmod`, :func:`pow`, ``**``, - ``<<``, ``>>``, ``&``, ``^``, ``|``) with reflected (swapped) operands. - These functions are only called if the left operand does not support the - corresponding operation and the operands are of different types. [#]_ For - instance, to evaluate the expression ``x - y``, where *y* is an instance of - a class that has an :meth:`__rsub__` method, ``y.__rsub__(x)`` is called if - ``x.__sub__(y)`` returns *NotImplemented*. + These methods are called to implement the binary arithmetic operations + (``+``, ``-``, ``*``, ``@``, ``/``, ``//``, ``%``, :func:`divmod`, + :func:`pow`, ``**``, ``<<``, ``>>``, ``&``, ``^``, ``|``) with reflected + (swapped) operands. These functions are only called if the left operand does + not support the corresponding operation and the operands are of different + types. [#]_ For instance, to evaluate the expression ``x - y``, where *y* is + an instance of a class that has an :meth:`__rsub__` method, ``y.__rsub__(x)`` + is called if ``x.__sub__(y)`` returns *NotImplemented*. .. index:: builtin: pow @@ -2041,6 +2044,7 @@ left undefined. .. method:: object.__iadd__(self, other) object.__isub__(self, other) object.__imul__(self, other) + object.__imatmul__(self, other) object.__itruediv__(self, other) object.__ifloordiv__(self, other) object.__imod__(self, other) @@ -2052,17 +2056,17 @@ left undefined. object.__ior__(self, other) These methods are called to implement the augmented arithmetic assignments - (``+=``, ``-=``, ``*=``, ``/=``, ``//=``, ``%=``, ``**=``, ``<<=``, ``>>=``, - ``&=``, ``^=``, ``|=``). These methods should attempt to do the operation - in-place (modifying *self*) and return the result (which could be, but does - not have to be, *self*). If a specific method is not defined, the augmented - assignment falls back to the normal methods. For instance, if *x* is an - instance of a class with an :meth:`__iadd__` method, ``x += y`` is equivalent - to ``x = x.__iadd__(y)`` . Otherwise, ``x.__add__(y)`` and ``y.__radd__(x)`` - are considered, as with the evaluation of ``x + y``. In certain situations, - augmented assignment can result in unexpected errors (see - :ref:`faq-augmented-assignment-tuple-error`), but this behavior is in - fact part of the data model. + (``+=``, ``-=``, ``*=``, ``@=``, ``/=``, ``//=``, ``%=``, ``**=``, ``<<=``, + ``>>=``, ``&=``, ``^=``, ``|=``). These methods should attempt to do the + operation in-place (modifying *self*) and return the result (which could be, + but does not have to be, *self*). If a specific method is not defined, the + augmented assignment falls back to the normal methods. For instance, if *x* + is an instance of a class with an :meth:`__iadd__` method, ``x += y`` is + equivalent to ``x = x.__iadd__(y)`` . Otherwise, ``x.__add__(y)`` and + ``y.__radd__(x)`` are considered, as with the evaluation of ``x + y``. In + certain situations, augmented assignment can result in unexpected errors (see + :ref:`faq-augmented-assignment-tuple-error`), but this behavior is in fact + part of the data model. .. method:: object.__neg__(self) |