with context api examples

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#!/usr/bin/env python
# -*- coding: utf-8 -*-


class WithInContext(object):
  """docstring for WithInContext"""
	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):
	"""docstring for Context"""
	def __init__(self):
		print "__init__"
	def __enter__(self):
		print "enter"
		return WithInContext(self)
	def __exit__(self,exc_type,exc_val,exc_tb):
		print "__exit__"
		print exc_type
		print exc_val
		print exc_tb
		return True 

with Context():
	print "debug"
with Context() as c:
	c.do_something()
with Context():
	raise RuntimeError('ERROR MESSAGE!!')

init
enter
WithInContext.init(<main.Context object at 0x1005e5910>)
WithInContext.del()
debug
exit
None
None
None
init
enter
WithInContext.init(<main.Context object at 0x1005e5910>)
WithInContext.do_something
exit
None
None
None
init
enter
WithInContext.init(<main.Context object at 0x1005e5910>)
WithInContext.del()
exit
<type 'exceptions.RuntimeError'>
ERROR MESSAGE!!
<traceback object at 0x1005e2a28>
WithInContext.del()
[Finished in 0.1s]