Load a list subset with pickle?

Gabriel Genellina gagsl-py2 at yahoo.com.ar
Thu Oct 15 19:01:28 CEST 2009


En Thu, 15 Oct 2009 13:05:18 -0300, Peng Yu <pengyu.ut at gmail.com> escribió:

> How do I determine if I have loaded all the elements? I use the
> following code. I'm wondering if there is any better solution than
> this.
>
>
> ###############
> import pickle
>
> alist = [1, 2.0, 3, 4+6j]
>
> output=open('serialize_list.output/serialize_list.pkl', 'wb')
> for e in alist:
>   pickle.dump(e, output)
> output.close()
>
> input=open('serialize_list.output/serialize_list.pkl', 'rb')
>
> try:
>   while 1:
>     e = pickle.load(input)
>     print e
> except EOFError:
>   pass

Pickle the list length before its contents.

-- 
Gabriel Genellina




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