/usr/lib/python2.7/dist-packages/traitsui/help.py is in python-traitsui 4.4.0-1.3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
#
# Author: David C. Morrill
# Date: 02/04/2005
#
#------------------------------------------------------------------------------
""" Defines the help interface for displaying the help associated with a
Traits UI View object.
"""
#-------------------------------------------------------------------------------
# Imports:
#-------------------------------------------------------------------------------
from __future__ import absolute_import
from .toolkit import toolkit
#-------------------------------------------------------------------------------
# Default handler for showing the help associated with a view:
#-------------------------------------------------------------------------------
def default_show_help ( info, control ):
""" Default handler for showing the help associated with a view.
"""
toolkit().show_help( info.ui, control )
# The default handler for showing help
show_help = default_show_help
#-------------------------------------------------------------------------------
# Allows an application to change the default show help handler:
#-------------------------------------------------------------------------------
def on_help_call ( new_show_help = None ):
""" Sets a new global help provider function.
Parameters
----------
new_show_help : function
The function to set as the new global help provider
Returns
-------
The previous global help provider function
Description
-----------
The help provider function must have a signature of
*function*(*info*, *control*), where *info* is a UIInfo object for the
current view, and *control* is the UI control that invokes the function
(typically, a **Help** button). It is provided in case the help provider
needs to position the help window relative to the **Help** button.
To retrieve the current help provider function, call this function with
no arguments.
"""
global show_help
result = show_help
if new_show_help is not None:
show_help = new_show_help
return result
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