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# encoding: utf-8
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"""
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Global exception classes for IPython.core.
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Authors:
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* Brian Granger
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* Fernando Perez
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* Min Ragan-Kelley
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Notes
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-----
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"""
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#-----------------------------------------------------------------------------
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# Copyright (C) 2008-2011 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Exception classes
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#-----------------------------------------------------------------------------
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class IPythonCoreError(Exception):
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pass
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class TryNext(IPythonCoreError):
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"""Try next hook exception.
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Raise this in your hook function to indicate that the next hook handler
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should be used to handle the operation. If you pass arguments to the
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constructor those arguments will be used by the next hook instead of the
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original ones.
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A _msg argument will not be passed on, so it can be used as a displayable
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error message.
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"""
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def __init__(self, _msg="", *args, **kwargs):
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self.args = args
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self.kwargs = kwargs
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self.msg = _msg
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def __str__(self):
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return str(self.msg)
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class UsageError(IPythonCoreError):
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"""Error in magic function arguments, etc.
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Something that probably won't warrant a full traceback, but should
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nevertheless interrupt a macro / batch file.
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"""
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class StdinNotImplementedError(IPythonCoreError, NotImplementedError):
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"""raw_input was requested in a context where it is not supported
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For use in IPython kernels, where only some frontends may support
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stdin requests.
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"""
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