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BUG: Scrolling pager in vsplit on Mac OSX tears....
BUG: Scrolling pager in vsplit on Mac OSX tears. On Mac OS X, scrolling the pager when it is split vertically causes the help text to tear (i.e. the help text is unreadable). This hack attempts to make it a little better although the solution may not be optimal at all.

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zopeinterface.py
27 lines | 955 B | text/x-python | PythonLexer
# encoding: utf-8
# -*- test-case-name: IPython.frontend.tests.test_frontendbase -*-
"""
zope.interface mock. If zope is installed, this module provides a zope
interface classes, if not it provides mocks for them.
Classes provided:
Interface, Attribute, implements, classProvides
"""
__docformat__ = "restructuredtext en"
#-------------------------------------------------------------------------------
# Copyright (C) 2008-2011 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.
#-------------------------------------------------------------------------------
try:
from zope.interface import Interface, Attribute, implements, classProvides
except ImportError:
#zope.interface is not available
Interface = object
def Attribute(name, doc): pass
def implements(interface): pass
def classProvides(interface): pass