chore: import upstream snapshot with attribution

examples/python/multithreading/multithreading.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+"""Demonstration of using rerun from multiple threads."""
+
+from __future__ import annotations
+
+import argparse
+import random
+import threading
+
+import numpy as np
+import numpy.typing as npt
+
+import rerun as rr  # pip install rerun-sdk
+
+
+def rect_logger(path: str, color: npt.NDArray[np.float32]) -> None:
+    for _ in range(1000):
+        rects_xy = np.random.rand(5, 2) * 1024
+        rects_wh = np.random.rand(5, 2) * (1024 - rects_xy + 1)
+        rects = np.hstack((rects_xy, rects_wh))
+        rr.log(path, rr.Boxes2D(array=rects, array_format=rr.Box2DFormat.XYWH, colors=color))
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Demonstration of using Rerun from multiple threads.")
+    rr.script_add_args(parser)
+    args = parser.parse_args()
+
+    rr.script_setup(args, "rerun_example_multithreading")
+
+    threads = []
+    for i in range(10):
+        t = threading.Thread(target=rect_logger, args=(f"thread/{i}", [random.randrange(255) for _ in range(3)]))
+        t.start()
+        threads.append(t)
+
+    for t in threads:
+        t.join()
+
+    rr.script_teardown(args)
+
+
+if __name__ == "__main__":
+    main()