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__module__t __doc__R R R ( ( ( s /usr/lib/python2.6/contextlib.pyR s c s t f d } | S( s @contextmanager decorator.
Typical usage:
@contextmanager
def some_generator(<arguments>):
<setup>
try:
yield <value>
finally:
<cleanup>
This makes this:
with some_generator(<arguments>) as <variable>:
<body>
equivalent to this:
<setup>
try:
<variable> = <value>
<body>
finally:
<cleanup>
c s t | | S( N( R ( t argst kwds( t func( s /usr/lib/python2.6/contextlib.pyt helperQ s ( R ( R R ( ( R s /usr/lib/python2.6/contextlib.pyR 5 s c g s g } g } d } zc yI x= | D]5 } | i } | i } | i | | i | q W| VWn t i } n XWd xI | oA | i } y | | o
d } n Wq{ t i } q{ Xq{ W| d j o | d | d | d n Xd S( s Support multiple context managers in a single with-statement.
Code like this:
with nested(A, B, C) as (X, Y, Z):
<body>
is equivalent to this:
with A as X:
with B as Y:
with C as Z:
<body>
Ni i i ( NNN( NNN( NNN( R R R t appendR R t pop( t managerst exitst varsR t mgrt exitt enter( ( s /usr/lib/python2.6/contextlib.pyR W s0
c B s) e Z d Z d Z d Z d Z RS( s2 Context to automatically close something at the end of a block.
Code like this:
with closing(<module>.open(<arguments>)) as f:
<block>
is equivalent to this:
f = <module>.open(<arguments>)
try:
<block>
finally:
f.close()
c C s
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