In [1]:

    

x = 5


    

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x?


    

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x??


    

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def print_info():
    """
        show information
    """
    print 'Hello ChinaHadoop'


    

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print_info?


    

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print_info??


    

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%timeit [x for x in range(10)]


    

    




1000000 loops, best of 3: 888 ns per loop

In [8]:

    

%%time
l = []
for x in range(100000):
    l.append(x)


    

    




Wall time: 33 ms

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