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Handle NoSuchKernel errors more gracefully

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This commit is contained in:
Jessica B. Hamrick 2014-09-26 17:41:21 -07:00
parent 780ceee03a
commit cfc234dc89
1 changed files with 6 additions and 1 deletions
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7
IPython/html/services/sessions/handlers.py
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@ -10,6 +10,7 @@ from tornado import web
from ...base.handlers import IPythonHandler, json_errors
from IPython.utils.jsonutil import date_default
from IPython.html.utils import url_path_join, url_escape
from IPython.kernel.kernelspec import NoSuchKernel
class SessionRootHandler(IPythonHandler):
@ -52,7 +53,11 @@ class SessionRootHandler(IPythonHandler):
if sm.session_exists(name=name, path=path):
model = sm.get_session(name=name, path=path)
else:
model = sm.create_session(name=name, path=path, kernel_name=kernel_name)
try:
model = sm.create_session(name=name, path=path, kernel_name=kernel_name)
except NoSuchKernel:
raise web.HTTPError(400, "No such kernel: %s" % kernel_name)
location = url_path_join(self.base_url, 'api', 'sessions', model['id'])
self.set_header('Location', url_escape(location))
self.set_status(201)