venv added, updated

myenv/lib/python3.12/site-packages/reactivex/internal/priorityqueue.py

@@ -0,0 +1,54 @@
+import heapq
+from sys import maxsize
+from typing import Generic, List, Tuple, TypeVar
+
+_T1 = TypeVar("_T1")
+
+
+class PriorityQueue(Generic[_T1]):
+    """Priority queue for scheduling. Note that methods aren't thread-safe."""
+
+    MIN_COUNT = ~maxsize
+
+    def __init__(self) -> None:
+        self.items: List[Tuple[_T1, int]] = []
+        self.count = PriorityQueue.MIN_COUNT  # Monotonic increasing for sort stability
+
+    def __len__(self) -> int:
+        """Returns length of queue"""
+
+        return len(self.items)
+
+    def peek(self) -> _T1:
+        """Returns first item in queue without removing it"""
+        return self.items[0][0]
+
+    def dequeue(self) -> _T1:
+        """Returns and removes item with lowest priority from queue"""
+
+        item: _T1 = heapq.heappop(self.items)[0]
+        if not self.items:
+            self.count = PriorityQueue.MIN_COUNT
+        return item
+
+    def enqueue(self, item: _T1) -> None:
+        """Adds item to queue"""
+
+        heapq.heappush(self.items, (item, self.count))
+        self.count += 1
+
+    def remove(self, item: _T1) -> bool:
+        """Remove given item from queue"""
+
+        for index, _item in enumerate(self.items):
+            if _item[0] == item:
+                self.items.pop(index)
+                heapq.heapify(self.items)
+                return True
+
+        return False
+
+    def clear(self) -> None:
+        """Remove all items from the queue."""
+        self.items = []
+        self.count = PriorityQueue.MIN_COUNT