From f78c1fc4a3f72e7ff38d251b6f8f178bef7b3422 Mon Sep 17 00:00:00 2001
From: Ian Costanzo <ian@anon-solutions.ca>
Date: Tue, 9 Jul 2019 15:58:15 -0700
Subject: [PATCH] Swallow empty input in demo scripts

Signed-off-by: Ian Costanzo <ian@anon-solutions.ca>
---
 demo/utils.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/demo/utils.py b/demo/utils.py
index e674deee41..b45efcced6 100644
--- a/demo/utils.py
+++ b/demo/utils.py
@@ -145,7 +145,11 @@ async def prompt(*args, **kwargs):
     prompt_init()
     with patch_stdout():
         try:
-            return await prompt_toolkit.prompt(*args, async_=True, **kwargs)
+            while True:
+                tmp = await prompt_toolkit.prompt(*args, async_=True, **kwargs)
+                if 0 < len(tmp):
+                    break
+            return tmp
         except EOFError:
             return None