Merge pull request #21441 from ccordoba12/issue-21165

PR: Avoid error when restarting external kernel (IPython console)
spyder-ide · Oct 21, 2023 · 6c66ba9 · 6c66ba9
2 parents 6b31570 + f68ec70
commit 6c66ba9
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/spyder/plugins/ipythonconsole/widgets/client.py b/spyder/plugins/ipythonconsole/widgets/client.py
@@ -806,9 +806,13 @@ def _finalise_restart(self, reset=False):
                 # Aborting!
                 return
 
-            # Start autorestart mechanism
-            sw.kernel_manager.autorestart = True
-            sw.kernel_manager.start_restarter()
+            # Start autorestart mechanism.
+            # Note: We need to check for kernel_manager in case the kernel is
+            # not managed by us.
+            # Fixes spyder-ide/spyder#21165
+            if sw.kernel_manager:
+                sw.kernel_manager.autorestart = True
+                sw.kernel_manager.start_restarter()
 
             # For spyder-ide/spyder#6235, IPython was changing the
             # setting of %colors on windows by assuming it was using a