1 files changed, 0 insertions, 102 deletions
diff --git a/Lib/test/support/interpreters/_crossinterp.py b/Lib/test/support/interpreters/_crossinterp.py
deleted file mode 100644
index 544e197ba4c..00000000000
--- a/Lib/test/support/interpreters/_crossinterp.py
+++ /dev/null
@@ -1,102 +0,0 @@
-"""Common code between queues and channels."""
-
-
-class ItemInterpreterDestroyed(Exception):
-    """Raised when trying to get an item whose interpreter was destroyed."""
-
-
-class classonly:
-    """A non-data descriptor that makes a value only visible on the class.
-
-    This is like the "classmethod" builtin, but does not show up on
-    instances of the class.  It may be used as a decorator.
-    """
-
-    def __init__(self, value):
-        self.value = value
-        self.getter = classmethod(value).__get__
-        self.name = None
-
-    def __set_name__(self, cls, name):
-        if self.name is not None:
-            raise TypeError('already used')
-        self.name = name
-
-    def __get__(self, obj, cls):
-        if obj is not None:
-            raise AttributeError(self.name)
-        # called on the class
-        return self.getter(None, cls)
-
-
-class UnboundItem:
-    """Represents a cross-interpreter item no longer bound to an interpreter.
-
-    An item is unbound when the interpreter that added it to the
-    cross-interpreter container is destroyed.
-    """
-
-    __slots__ = ()
-
-    @classonly
-    def singleton(cls, kind, module, name='UNBOUND'):
-        doc = cls.__doc__.replace('cross-interpreter container', kind)
-        doc = doc.replace('cross-interpreter', kind)
-        subclass = type(
-            f'Unbound{kind.capitalize()}Item',
-            (cls,),
-            dict(
-                _MODULE=module,
-                _NAME=name,
-                __doc__=doc,
-            ),
-        )
-        return object.__new__(subclass)
-
-    _MODULE = __name__
-    _NAME = 'UNBOUND'
-
-    def __new__(cls):
-        raise Exception(f'use {cls._MODULE}.{cls._NAME}')
-
-    def __repr__(self):
-        return f'{self._MODULE}.{self._NAME}'
-#        return f'interpreters.queues.UNBOUND'
-
-
-UNBOUND = object.__new__(UnboundItem)
-UNBOUND_ERROR = object()
-UNBOUND_REMOVE = object()
-
-_UNBOUND_CONSTANT_TO_FLAG = {
-    UNBOUND_REMOVE: 1,
-    UNBOUND_ERROR: 2,
-    UNBOUND: 3,
-}
-_UNBOUND_FLAG_TO_CONSTANT = {v: k
-                             for k, v in _UNBOUND_CONSTANT_TO_FLAG.items()}
-
-
-def serialize_unbound(unbound):
-    op = unbound
-    try:
-        flag = _UNBOUND_CONSTANT_TO_FLAG[op]
-    except KeyError:
-        raise NotImplementedError(f'unsupported unbound replacement op {op!r}')
-    return flag,
-
-
-def resolve_unbound(flag, exctype_destroyed):
-    try:
-        op = _UNBOUND_FLAG_TO_CONSTANT[flag]
-    except KeyError:
-        raise NotImplementedError(f'unsupported unbound replacement op {flag!r}')
-    if op is UNBOUND_REMOVE:
-        # "remove" not possible here
-        raise NotImplementedError
-    elif op is UNBOUND_ERROR:
-        raise exctype_destroyed("item's original interpreter destroyed")
-    elif op is UNBOUND:
-        return UNBOUND
-    else:
-        raise NotImplementedError(repr(op))