Adding upstream version 3.0.43.upstream/3.0.43upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/examples/progress-bar/two-tasks.py b/examples/progress-bar/two-tasks.py
new file mode 100755
index 0000000..c78604e
--- /dev/null
+++ b/examples/progress-bar/two-tasks.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+"""
+Two progress bars that run in parallel.
+"""
+import threading
+import time
+
+from prompt_toolkit.shortcuts import ProgressBar
+
+
+def main():
+    with ProgressBar() as pb:
+        # Two parallal tasks.
+        def task_1():
+            for i in pb(range(100)):
+                time.sleep(0.05)
+
+        def task_2():
+            for i in pb(range(150)):
+                time.sleep(0.08)
+
+        # Start threads.
+        t1 = threading.Thread(target=task_1)
+        t2 = threading.Thread(target=task_2)
+        t1.daemon = True
+        t2.daemon = True
+        t1.start()
+        t2.start()
+
+        # Wait for the threads to finish. We use a timeout for the join() call,
+        # because on Windows, join cannot be interrupted by Control-C or any other
+        # signal.
+        for t in [t1, t2]:
+            while t.is_alive():
+                t.join(timeout=0.5)
+
+
+if __name__ == "__main__":
+    main()