upstream/ipython Files · IPython/core/error.py

fix base64 code in nbformat.v2...

fix base64 code in nbformat.v2 base64 encoding functions were called, but had no effect, because the notebook already has everything as b64-encoded bytestrings, which are valid ascii literals on Python 2. However, the encode/decode logic is actually triggered on Python 3, revealing its errors. This fixes the base64 functions that had no effect to have their intended effect, but does not use them. Rather, it is assumed that bytes objects are already b64-encoded (and thus ascii-safe), which assumption was already made in Python 2.

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      # encoding: utf-8

      """

      Global exception classes for IPython.core.

      Authors:

      * Brian Granger

      * Fernando Perez

      * Min Ragan-Kelley

      Notes

      -----

      """

      #-----------------------------------------------------------------------------

      #  Copyright (C) 2008-2009  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Imports

      #-----------------------------------------------------------------------------

      #-----------------------------------------------------------------------------

      # Exception classes

      #-----------------------------------------------------------------------------

      class IPythonCoreError(Exception):

          pass

      class TryNext(IPythonCoreError):

          """Try next hook exception.

          Raise this in your hook function to indicate that the next hook handler

          should be used to handle the operation.  If you pass arguments to the

          constructor those arguments will be used by the next hook instead of the

          original ones.

          """

          def __init__(self, *args, **kwargs):

              self.args = args

              self.kwargs = kwargs

      class UsageError(IPythonCoreError):

          """Error in magic function arguments, etc.

          Something that probably won't warrant a full traceback, but should

          nevertheless interrupt a macro / batch file.

          """

      class StdinNotImplementedError(IPythonCoreError, NotImplementedError):

          """raw_input was requested in a context where it is not supported

          For use in IPython kernels, where only some frontends may support

          stdin requests.

          """

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				# encoding: utf-8
				"""
				Global exception classes for IPython.core.

				Authors:

				* Brian Granger
				* Fernando Perez
				* Min Ragan-Kelley

				Notes
				-----
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2009 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Exception classes
				#-----------------------------------------------------------------------------

				class IPythonCoreError(Exception):
				pass


				class TryNext(IPythonCoreError):
				"""Try next hook exception.

				Raise this in your hook function to indicate that the next hook handler
				should be used to handle the operation. If you pass arguments to the
				constructor those arguments will be used by the next hook instead of the
				original ones.
				"""

				def __init__(self, args, *kwargs):
				self.args = args
				self.kwargs = kwargs

				class UsageError(IPythonCoreError):
				"""Error in magic function arguments, etc.

				Something that probably won't warrant a full traceback, but should
				nevertheless interrupt a macro / batch file.
				"""

				class StdinNotImplementedError(IPythonCoreError, NotImplementedError):
				"""raw_input was requested in a context where it is not supported

				For use in IPython kernels, where only some frontends may support
				stdin requests.
				"""