contextlib_api_other_project.py

#!/usr/bin/env python


class WithinContext(object):

    def __init__(self, context):
        print 'WithinContext.__init__(%s)' % context

    def do_something(self):
        print 'WithinContext.do_something()'

    def __del__(self):
        print 'Withincontext.__del__'


class Context(object):

    def __init__(self):
        print 'Context.__init()'

    def __enter__(self):
        print 'Context.__enter__()'
        return WithinContext(self)

    def __exit__(self, exc_type, exc_val, exc_tb):
        print 'Context.__exit__()'

with Context() as c:
    c.do_something()