Library import 16 (#2433)

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1 files changed, 0 insertions, 244 deletions

diff --git a/contrib/tools/python3/src/Lib/asyncio/queues.py b/contrib/tools/python3/src/Lib/asyncio/queues.py
deleted file mode 100644
index a9656a6df56..00000000000
--- a/contrib/tools/python3/src/Lib/asyncio/queues.py
+++ /dev/null
@@ -1,244 +0,0 @@
-__all__ = ('Queue', 'PriorityQueue', 'LifoQueue', 'QueueFull', 'QueueEmpty')
-
-import collections
-import heapq
-from types import GenericAlias
-
-from . import locks
-from . import mixins
-
-
-class QueueEmpty(Exception):
-    """Raised when Queue.get_nowait() is called on an empty Queue."""
-    pass
-
-
-class QueueFull(Exception):
-    """Raised when the Queue.put_nowait() method is called on a full Queue."""
-    pass
-
-
-class Queue(mixins._LoopBoundMixin):
-    """A queue, useful for coordinating producer and consumer coroutines.
-
-    If maxsize is less than or equal to zero, the queue size is infinite. If it
-    is an integer greater than 0, then "await put()" will block when the
-    queue reaches maxsize, until an item is removed by get().
-
-    Unlike the standard library Queue, you can reliably know this Queue's size
-    with qsize(), since your single-threaded asyncio application won't be
-    interrupted between calling qsize() and doing an operation on the Queue.
-    """
-
-    def __init__(self, maxsize=0):
-        self._maxsize = maxsize
-
-        # Futures.
-        self._getters = collections.deque()
-        # Futures.
-        self._putters = collections.deque()
-        self._unfinished_tasks = 0
-        self._finished = locks.Event()
-        self._finished.set()
-        self._init(maxsize)
-
-    # These three are overridable in subclasses.
-
-    def _init(self, maxsize):
-        self._queue = collections.deque()
-
-    def _get(self):
-        return self._queue.popleft()
-
-    def _put(self, item):
-        self._queue.append(item)
-
-    # End of the overridable methods.
-
-    def _wakeup_next(self, waiters):
-        # Wake up the next waiter (if any) that isn't cancelled.
-        while waiters:
-            waiter = waiters.popleft()
-            if not waiter.done():
-                waiter.set_result(None)
-                break
-
-    def __repr__(self):
-        return f'<{type(self).__name__} at {id(self):#x} {self._format()}>'
-
-    def __str__(self):
-        return f'<{type(self).__name__} {self._format()}>'
-
-    __class_getitem__ = classmethod(GenericAlias)
-
-    def _format(self):
-        result = f'maxsize={self._maxsize!r}'
-        if getattr(self, '_queue', None):
-            result += f' _queue={list(self._queue)!r}'
-        if self._getters:
-            result += f' _getters[{len(self._getters)}]'
-        if self._putters:
-            result += f' _putters[{len(self._putters)}]'
-        if self._unfinished_tasks:
-            result += f' tasks={self._unfinished_tasks}'
-        return result
-
-    def qsize(self):
-        """Number of items in the queue."""
-        return len(self._queue)
-
-    @property
-    def maxsize(self):
-        """Number of items allowed in the queue."""
-        return self._maxsize
-
-    def empty(self):
-        """Return True if the queue is empty, False otherwise."""
-        return not self._queue
-
-    def full(self):
-        """Return True if there are maxsize items in the queue.
-
-        Note: if the Queue was initialized with maxsize=0 (the default),
-        then full() is never True.
-        """
-        if self._maxsize <= 0:
-            return False
-        else:
-            return self.qsize() >= self._maxsize
-
-    async def put(self, item):
-        """Put an item into the queue.
-
-        Put an item into the queue. If the queue is full, wait until a free
-        slot is available before adding item.
-        """
-        while self.full():
-            putter = self._get_loop().create_future()
-            self._putters.append(putter)
-            try:
-                await putter
-            except:
-                putter.cancel()  # Just in case putter is not done yet.
-                try:
-                    # Clean self._putters from canceled putters.
-                    self._putters.remove(putter)
-                except ValueError:
-                    # The putter could be removed from self._putters by a
-                    # previous get_nowait call.
-                    pass
-                if not self.full() and not putter.cancelled():
-                    # We were woken up by get_nowait(), but can't take
-                    # the call.  Wake up the next in line.
-                    self._wakeup_next(self._putters)
-                raise
-        return self.put_nowait(item)
-
-    def put_nowait(self, item):
-        """Put an item into the queue without blocking.
-
-        If no free slot is immediately available, raise QueueFull.
-        """
-        if self.full():
-            raise QueueFull
-        self._put(item)
-        self._unfinished_tasks += 1
-        self._finished.clear()
-        self._wakeup_next(self._getters)
-
-    async def get(self):
-        """Remove and return an item from the queue.
-
-        If queue is empty, wait until an item is available.
-        """
-        while self.empty():
-            getter = self._get_loop().create_future()
-            self._getters.append(getter)
-            try:
-                await getter
-            except:
-                getter.cancel()  # Just in case getter is not done yet.
-                try:
-                    # Clean self._getters from canceled getters.
-                    self._getters.remove(getter)
-                except ValueError:
-                    # The getter could be removed from self._getters by a
-                    # previous put_nowait call.
-                    pass
-                if not self.empty() and not getter.cancelled():
-                    # We were woken up by put_nowait(), but can't take
-                    # the call.  Wake up the next in line.
-                    self._wakeup_next(self._getters)
-                raise
-        return self.get_nowait()
-
-    def get_nowait(self):
-        """Remove and return an item from the queue.
-
-        Return an item if one is immediately available, else raise QueueEmpty.
-        """
-        if self.empty():
-            raise QueueEmpty
-        item = self._get()
-        self._wakeup_next(self._putters)
-        return item
-
-    def task_done(self):
-        """Indicate that a formerly enqueued task is complete.
-
-        Used by queue consumers. For each get() used to fetch a task,
-        a subsequent call to task_done() tells the queue that the processing
-        on the task is complete.
-
-        If a join() is currently blocking, it will resume when all items have
-        been processed (meaning that a task_done() call was received for every
-        item that had been put() into the queue).
-
-        Raises ValueError if called more times than there were items placed in
-        the queue.
-        """
-        if self._unfinished_tasks <= 0:
-            raise ValueError('task_done() called too many times')
-        self._unfinished_tasks -= 1
-        if self._unfinished_tasks == 0:
-            self._finished.set()
-
-    async def join(self):
-        """Block until all items in the queue have been gotten and processed.
-
-        The count of unfinished tasks goes up whenever an item is added to the
-        queue. The count goes down whenever a consumer calls task_done() to
-        indicate that the item was retrieved and all work on it is complete.
-        When the count of unfinished tasks drops to zero, join() unblocks.
-        """
-        if self._unfinished_tasks > 0:
-            await self._finished.wait()
-
-
-class PriorityQueue(Queue):
-    """A subclass of Queue; retrieves entries in priority order (lowest first).
-
-    Entries are typically tuples of the form: (priority number, data).
-    """
-
-    def _init(self, maxsize):
-        self._queue = []
-
-    def _put(self, item, heappush=heapq.heappush):
-        heappush(self._queue, item)
-
-    def _get(self, heappop=heapq.heappop):
-        return heappop(self._queue)
-
-
-class LifoQueue(Queue):
-    """A subclass of Queue that retrieves most recently added entries first."""
-
-    def _init(self, maxsize):
-        self._queue = []
-
-    def _put(self, item):
-        self._queue.append(item)
-
-    def _get(self):
-        return self._queue.pop()