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Merge branch 'newkernel' into trunk with all new Qt console work....
Merge branch 'newkernel' into trunk with all new Qt console work. This provides a new main script, ipython-qtconsole, that offers a rich Qt widget capable of multiline editing, inline plots, html help and much more. This branch was developed over the last two months mostly by Evan Patterson, Brian Granger and Fernando Perez, thanks to the support of Enthought, Inc. The code is now in a good prototype stage, and it's being merged into trunk where further work, polishing and stabilization will take place.
Brian E Granger - - Load All Authors

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message_cache.py
98 lines | 2.5 KiB | text/x-python | PythonLexer
/ IPython / kernel / core / message_cache.py
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# encoding: utf-8
"""Storage for the responses from the interpreter."""
__docformat__ = "restructuredtext en"
#-------------------------------------------------------------------------------
# Copyright (C) 2008 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
#-------------------------------------------------------------------------------
class IMessageCache(object):
""" Storage for the response from the interpreter.
"""
def add_message(self, i, message):
""" Add a message dictionary to the cache.
Parameters
----------
i : int
message : dict
"""
def get_message(self, i=None):
""" Get the message from the cache.
Parameters
----------
i : int, optional
The number of the message. If not provided, return the
highest-numbered message.
Returns
-------
message : dict
Raises
------
IndexError if the message does not exist in the cache.
"""
class SimpleMessageCache(object):
""" Simple dictionary-based, in-memory storage of the responses from the
interpreter.
"""
def __init__(self):
self.cache = {}
def add_message(self, i, message):
""" Add a message dictionary to the cache.
Parameters
----------
i : int
message : dict
"""
self.cache[i] = message
def get_message(self, i=None):
""" Get the message from the cache.
Parameters
----------
i : int, optional
The number of the message. If not provided, return the
highest-numbered message.
Returns
-------
message : dict
Raises
------
IndexError if the message does not exist in the cache.
"""
if i is None:
keys = self.cache.keys()
if len(keys) == 0:
raise IndexError("index %r out of range" % i)
else:
i = max(self.cache.keys())
try:
return self.cache[i]
except KeyError:
# IndexError is more appropriate, here.
raise IndexError("index %r out of range" % i)