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# encoding: utf-8
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"""
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Autocall capabilities for IPython.core.
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Authors:
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* Brian Granger
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* Fernando Perez
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* Thomas Kluyver
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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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# Code
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#-----------------------------------------------------------------------------
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class IPyAutocall(object):
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""" Instances of this class are always autocalled
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This happens regardless of 'autocall' variable state. Use this to
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develop macro-like mechanisms.
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"""
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_ip = None
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rewrite = True
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def __init__(self, ip=None):
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self._ip = ip
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def set_ip(self, ip):
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"""Will be used to set _ip point to current ipython instance b/f call
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Override this method if you don't want this to happen.
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"""
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self._ip = ip
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class ExitAutocall(IPyAutocall):
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"""An autocallable object which will be added to the user namespace so that
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exit, exit(), quit or quit() are all valid ways to close the shell."""
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rewrite = False
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def __call__(self):
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self._ip.ask_exit()
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class ZMQExitAutocall(ExitAutocall):
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"""Exit IPython. Autocallable, so it needn't be explicitly called.
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Parameters
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----------
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keep_kernel : bool
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If True, leave the kernel alive. Otherwise, tell the kernel to exit too
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(default).
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"""
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def __call__(self, keep_kernel=False):
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self._ip.keepkernel_on_exit = keep_kernel
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self._ip.ask_exit()
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