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Improve preview error handling #7434

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Oct 24, 2024
Merged

Improve preview error handling #7434

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14989c7
improve preview error handling
MarcSkovMadsen Oct 23, 2024
bdde196
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MarcSkovMadsen Oct 23, 2024
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3 changes: 3 additions & 0 deletions panel/io/jupyter_server_extension.py
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Original file line number Diff line number Diff line change
Expand Up @@ -389,6 +389,9 @@ async def open(self, path, *args, **kwargs) -> None:
self.session_id = get_session_id(token)
if self.session_id not in state._kernels:
self.close()
msg = f"Session ID '{self.session_id}' does not correspond to any active kernel."
raise ProtocolError(msg)
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kernel_info = state._kernels[self.session_id]
self.kernel, self.comm_id, self.kernel_id, _ = kernel_info
state._kernels[self.session_id] = kernel_info[:-1] + (True,)
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