From c0753c1afb09dab873da02e6f98a492cb913f0e9 Mon Sep 17 00:00:00 2001
From: Jeff Epler <jepler@unpythonic.net>
Date: Tue, 25 Aug 2020 11:46:49 -0500
Subject: mp_obj_print_helper: Handle a ctrl-c that comes in during printing

In #2689, hitting ctrl-c during the printing of an object with a lot of sub-objects could cause the screen to stop updating (without showing a KeyboardInterrupt).  This makes the printing of such objects acutally interruptable, and also correctly handles the KeyboardInterrupt:

```
>>> l = ["a" * 100] * 200
>>> l
['aaaaaaaaaaaaaaaaaaaaaa...aaaaaaaaaaa', Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
KeyboardInterrupt:
>>>
```
---
 py/obj.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'py')

diff --git a/py/obj.c b/py/obj.c
index 0cff2f1a4..9dc0cf474 100644
--- a/py/obj.c
+++ b/py/obj.c
@@ -67,6 +67,8 @@ void mp_obj_print_helper(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t
     #ifdef RUN_BACKGROUND_TASKS
     RUN_BACKGROUND_TASKS;
     #endif
+    mp_handle_pending();
+
 #ifndef NDEBUG
     if (o_in == MP_OBJ_NULL) {
         mp_print_str(print, "(nil)");
-- 
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