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

truncate potentially long CompositeErrors...

truncate potentially long CompositeErrors If you have a typo in a task on 100 engines, the local exception will be a bit ridiculous. This defaults the truncation to 4 tracebacks (could be even fewer, or even one?), and you can set the tb_limit attribute of CompositeError to adjust this. Prompted by [this SO question](http://stackoverflow.com/questions/14635935/silence-or-condence-ipython-parallel-exceptions).

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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)

      try:

          version_info = tornado.version_info

      except AttributeError:

          raise ImportError(msg + ", but you have < 1.1.0")

      if version_info < (2,1,0):

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

      del msg

      # check for pyzmq 2.1.4

      from IPython.kernel.zmq import check_for_zmq

      check_for_zmq('2.1.4', 'IPython.frontend.html.notebook')

      del check_for_zmq

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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)
				try:
				version_info = tornado.version_info
				except AttributeError:
				raise ImportError(msg + ", but you have < 1.1.0")
				if version_info < (2,1,0):
				raise ImportError(msg + ", but you have %s" % tornado.version)
				del msg

				# check for pyzmq 2.1.4
				from IPython.kernel.zmq import check_for_zmq
				check_for_zmq('2.1.4', 'IPython.frontend.html.notebook')
				del check_for_zmq