/usr/share/pyshared/gamera/graph_util.py is in python-gamera 3.3.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# vim: set tabstop=3 shiftwidth=3 expandtab:
#
# Copyright (C) 2001-2005 Ichiro Fujinaga, Michael Droettboom,
# and Karl MacMillan
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
def graphviz_output(G, filename, string_function=str):
"""**graphviz_output** (*graph*, *filename*, *string_function* = str)
Writes a graph in the format used by the ``dot`` tool in the graphviz_ package for
graph visualisation.
.. _graphviz: http://www.graphviz.org/
*graph*
A Gamera ``Graph`` object.
*filename*
Filename to output to.
*string_function*
A function to convert node values to strings. By default this will use Python's
standard ``str`` function.
"""
fd = open(filename, 'w')
if G.is_directed():
fd.write("digraph G {\n")
for node in G.get_nodes():
fd.write(' "%s";\n' %
string_function(node()))
for edge in node.edges:
fd.write(' "%s" -> "%s"' % (
string_function(node()), string_function(edge.to_node())))
if edge.label is not None:
fd.write(' [ label = %f ]' % (edge.label))
fd.write(';\n')
fd.write("}\n")
else:
fd.write("graph G {\n")
for node in G.get_nodes():
fd.write(' "%s";\n' %
string_function(node()))
for edge in G.get_edges():
fd.write(' "%s" -- "%s"' % (
string_function(edge.from_node()), string_function(edge.to_node())))
if edge.label is not None:
fd.write(' [ label = %f ]' % (edge.label))
fd.write(";\n")
fd.write("}\n")
fd.close()
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