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>>> a=[1,2]
>>> def f(b):
... b[0]='a'
>>> a
[1, 2]
>>> f(a)
>>> a
['a', 2]
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>>> def f(b):
... b=1
...
>>> f(a)
>>> a
3
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>>> a=[1,2]
>>> def f(b):
... b[0]='a'
>>> a
[1, 2]
>>> f(a)
>>> a
['a', 2]
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conn.request('','')
rd=conn.getresponse()
conn.close()
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