upstream/ipython Files · IPython/frontend/html/notebook/__init__.py

protect kernelapp/qtconsole from invalid connection files...

protect kernelapp/qtconsole from invalid connection files (clean error/exit, rather than crash) also use stdlib json to load connection file, not zmq.jsonapi, which can be jsonlib2, which will return Longs, causing TraitError.

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             __init__.py
        
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             / IPython / frontend / html / notebook / __init__.py
          
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      """The IPython HTML Notebook"""

      # check for tornado 2.1.0

      msg = "The IPython Notebook requires tornado >= 2.1.0"

      try:

          import tornado

      except ImportError:

          raise ImportError(msg)

      else:

          if tornado.version_info < (2,1,0):

              raise ImportError(msg+", but you have %s"%tornado.version)

      del msg

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				"""The IPython HTML Notebook"""

				# check for tornado 2.1.0
				msg = "The IPython Notebook requires tornado >= 2.1.0"
				try:
				import tornado
				except ImportError:
				raise ImportError(msg)
				else:
				if tornado.version_info < (2,1,0):
				raise ImportError(msg+", but you have %s"%tornado.version)
				del msg