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example.py
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example.py
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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# Author: Ziad Sawalha (http://launchpad.net/~ziad-sawalha)
"""
Demonstrates the Call Tracing Tool
Run this with the '--trace-calls' paramater
Example (compare output from those two):
python example.py
python example.py --trace-tools
"""
import tools.tracer # load this first
def main():
''' The main function in a program'''
# Do some stuff
data = 'I'
# Call another function
return foo(data)
def foo(data):
''' A function '''
data = data + ' am'
return bar(data)
def bar(data):
''' Another function '''
data = data + ' doing stuff'
return data
if __name__ == "__main__":
print main()