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| Current File : //usr/local/lib/python2.5/contextlib.pyc |
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o } | | j Sn& t i ƒ d | j o ‚ qÎ n Xd S( Ns generator didn't stops# generator didn't stop after throw()i ( t NoneR R R R t throwt syst exc_info( R t typet valuet tracebackt exc( ( s& /usr/local/lib/python2.5/contextlib.pyt __exit__ s
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R ( ( ( s& /usr/local/lib/python2.5/contextlib.pyR s c sE ‡ f d † } y( ˆ i | _ ˆ i | _ ˆ i | _ Wn n X| S( sÜ @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 ˆ | | Ž ƒ S( N( R ( t argst kwds( t func( s& /usr/local/lib/python2.5/contextlib.pyt helperP s ( R R t __dict__( R R ( ( R s& /usr/local/lib/python2.5/contextlib.pyR 4 s c g sò g } g } d } zc yI x= | D]5 } | i } | i } | i | ƒ ƒ | i | ƒ q W| VWn t i ƒ } n XWd xI | oA | i ƒ } y | | Œ o
d } n Wq{ t i ƒ } 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>
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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()
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