.. opcode:: BUILD_MAP (count)

Pushes a new dictionary object onto the stack. The dictionary is pre-sized

to hold *count* entries.

Pushes a new dictionary object onto the stack. Pops ``2 * count`` items

so that the dictionary holds *count* entries:

``{..., TOS3: TOS2, TOS1: TOS}``.

.. versionchanged:: 3.5

The dictionary is created from stack items instead of creating an

empty dictionary pre-sized to hold *count* items.

.. opcode:: BUILD_TUPLE_UNPACK (count)

Pops *count* iterables from the stack, joins them in a single tuple,

and pushes the result. Implements iterable unpacking in tuple

displays ``(*x, *y, *z)``.

.. versionadded:: 3.5

.. opcode:: BUILD_LIST_UNPACK (count)

This is similar to :opcode:`BUILD_TUPLE_UNPACK`, but pushes a list

instead of tuple. Implements iterable unpacking in list

displays ``[*x, *y, *z]``.

.. versionadded:: 3.5

.. opcode:: BUILD_SET_UNPACK (count)

This is similar to :opcode:`BUILD_TUPLE_UNPACK`, but pushes a set

instead of tuple. Implements iterable unpacking in set

displays ``{*x, *y, *z}``.

.. versionadded:: 3.5

.. opcode:: BUILD_MAP_UNPACK (count)

Pops *count* mappings from the stack, merges them into a single dictionary,

and pushes the result. Implements dictionary unpacking in dictionary

displays ``{**x, **y, **z}``.

.. versionadded:: 3.5

.. opcode:: BUILD_MAP_UNPACK_WITH_CALL (oparg)

This is similar to :opcode:`BUILD_MAP_UNPACK`,

but is used for ``f(**x, **y, **z)`` call syntax. The lowest byte of

*oparg* is the count of mappings, the relative position of the

corresponding callable ``f`` is encoded in the second byte of *oparg*.

.. versionadded:: 3.5

.. opcode:: LOAD_ATTR (namei)