Adding upstream version 3.0.43.upstream/3.0.43

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

1 files changed, 41 insertions, 0 deletions

diff --git a/examples/prompts/patch-stdout.py b/examples/prompts/patch-stdout.py
new file mode 100755
index 0000000..1c83524
--- /dev/null
+++ b/examples/prompts/patch-stdout.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+"""
+An example that demonstrates how `patch_stdout` works.
+
+This makes sure that output from other threads doesn't disturb the rendering of
+the prompt, but instead is printed nicely above the prompt.
+"""
+import threading
+import time
+
+from prompt_toolkit import prompt
+from prompt_toolkit.patch_stdout import patch_stdout
+
+
+def main():
+    # Print a counter every second in another thread.
+    running = True
+
+    def thread():
+        i = 0
+        while running:
+            i += 1
+            print("i=%i" % i)
+            time.sleep(1)
+
+    t = threading.Thread(target=thread)
+    t.daemon = True
+    t.start()
+
+    # Now read the input. The print statements of the other thread
+    # should not disturb anything.
+    with patch_stdout():
+        result = prompt("Say something: ")
+    print("You said: %s" % result)
+
+    # Stop thread.
+    running = False
+
+
+if __name__ == "__main__":
+    main()