Merge pull request #595 from hrdl-github/fix-None

Check for None in case we are dealing with an externally launched kernel
jupyter · Nov 16, 2023 · 4935b68 · 4935b68
2 parents 4f28d1b + 20229d6
commit 4935b68
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qtconsole/qtconsoleapp.py b/qtconsole/qtconsoleapp.py
@@ -191,7 +191,7 @@ def new_frontend_master(self):
         # start the kernel
         kwargs = {}
         # FIXME: remove special treatment of IPython kernels
-        if self.kernel_manager.ipykernel:
+        if self.kernel_manager and self.kernel_manager.ipykernel:
             kwargs['extra_arguments'] = self.kernel_argv
         kernel_manager.start_kernel(**kwargs)
         kernel_manager.client_factory = self.kernel_client_class