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don't rely on hasattr in utils.dir2...
don't rely on hasattr in utils.dir2 Some remote object libraries (e.g. Pyro) will lie to hasattr, not raising AttributeError until the attr is actually requested. This prevents these AttributeErrors from crashing IPython. closes gh-543 Signed-off-by: MinRK <benjaminrk@gmail.com>

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r3724:a1be81f4
r4113:b9b8f448
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autocall.py
71 lines | 2.0 KiB | text/x-python | PythonLexer
Brian Granger
Continuing a massive refactor of everything.
r2205 #!/usr/bin/env python
# encoding: utf-8
"""
Autocall capabilities for IPython.core.
Authors:
* Brian Granger
* Fernando Perez
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721 * Thomas Kluyver
Brian Granger
Continuing a massive refactor of everything.
r2205
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
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
class IPyAutocall(object):
""" Instances of this class are always autocalled
This happens regardless of 'autocall' variable state. Use this to
develop macro-like mechanisms.
"""
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721 _ip = None
Thomas Kluyver
Suppress auto_rewrite of exit autocall.
r3722 rewrite = True
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721 def __init__(self, ip=None):
self._ip = ip
Brian Granger
Continuing a massive refactor of everything.
r2205
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721 def set_ip(self, ip):
Brian Granger
Continuing a massive refactor of everything.
r2205 """ Will be used to set _ip point to current ipython instance b/f call
Override this method if you don't want this to happen.
"""
self._ip = ip
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721
class ExitAutocall(IPyAutocall):
"""An autocallable object which will be added to the user namespace so that
exit, exit(), quit or quit() are all valid ways to close the shell."""
Thomas Kluyver
Suppress auto_rewrite of exit autocall.
r3722 rewrite = False
Thomas Kluyver
Replace magic exit function with exit subclassing IPyAutocall. Credit to David Warde-Farley (@dwf) for tackling this issue.
r3721
def __call__(self):
self._ip.ask_exit()
Thomas Kluyver
Subclass exit autocallable for two process shells, with argument to keep kernel alive.
r3724
class ZMQExitAutocall(ExitAutocall):
"""Exit IPython. Autocallable, so it needn't be explicitly called.
Parameters
----------
keep_kernel : bool
If True, leave the kernel alive. Otherwise, tell the kernel to exit too
(default).
"""
def __call__(self, keep_kernel=False):
self._ip.keepkernel_on_exit = keep_kernel
self._ip.ask_exit()