From 4c0138e40d6e0ab65f209fb995acfcbaad331898 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 8 Nov 2021 20:30:02 +0530
Subject: [PATCH] Use system random source for picking a random book

---
 src/calibre/gui2/actions/random.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/calibre/gui2/actions/random.py b/src/calibre/gui2/actions/random.py
index 5584fed6d5..089f14e97f 100644
--- a/src/calibre/gui2/actions/random.py
+++ b/src/calibre/gui2/actions/random.py
@@ -21,6 +21,10 @@ class PickRandomAction(InterfaceAction):
     def genesis(self):
         self.qaction.triggered.connect(self.pick_random)
         self.recently_picked = {}
+        try:
+            self.randint = random.SystemRandom().randint
+        except Exception:
+            self.randint = random.randint
 
     def location_selected(self, loc):
         enabled = loc == 'library'
@@ -38,7 +42,7 @@ class PickRandomAction(InterfaceAction):
             n = next(iter(rp))
             del rp[n]
         while True:
-            pick = random.randint(0, count)
+            pick = self.randint(0, count)
             if pick in rp:
                 continue
             rp[pick] = True