From d6f88ab9d0c3c6dd606913b99b618175cda7c85b Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 25 Nov 2023 13:06:48 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/__init__.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/calibre/gui2/__init__.py b/src/calibre/gui2/__init__.py
index c3f0c7f242..5779c7b036 100644
--- a/src/calibre/gui2/__init__.py
+++ b/src/calibre/gui2/__init__.py
@@ -1464,6 +1464,7 @@ def open_url(qurl):
             ensure_app()
             cmd = ['xdg-open', qurl.toLocalFile() if qurl.isLocalFile() else qurl.toString(QUrl.ComponentFormattingOption.FullyEncoded)]
             if isfrozen and QApplication.instance().platformName() == "wayland":
+                import subprocess
                 # See https://bugreports.qt.io/browse/QTBUG-119438
                 subprocess.Popen(cmd, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
                 ok = True