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Groups > comp.lang.python > #28757
| Newsgroups | comp.lang.python |
|---|---|
| Date | 2012-09-08 23:44 -0700 |
| References | (1 earlier) <60A480B7378343149401A424A682AF34@gmail.com> <CAE5RzXmmGF-w0qHG1F6J5yBMMUptzmGmTqpjh21gf8Yg0A1U_w@mail.gmail.com> <C6FCB83691994615873009528A6C0CD7@gmail.com> <CAE5RzXnjE+UqZj5Ofk2i0F=9U7ZGaAi2D+odwZbUHz0_bYQbzg@mail.gmail.com> <mailman.405.1347172371.27098.python-list@python.org> |
| Subject | Re: Is there a unique method in python to unique a list? |
| From | Token Type <typetoken@gmail.com> |
| Message-ID | <mailman.407.1347173102.27098.python-list@python.org> (permalink) |
> Try backdenting that statement. You're currently doing it at every
>
> iteration of the loop - that's why it's so much slower.
Thanks. I works now.
>>> def average_polysemy(pos):
synset_list = list(wn.all_synsets(pos))
sense_number = 0
lemma_list = []
for synset in synset_list:
lemma_list.extend(synset.lemma_names)
for lemma in list(set(lemma_list)):
sense_number_new = len(wn.synsets(lemma, pos))
sense_number = sense_number + sense_number_new
return sense_number/len(set(lemma_list))
>>> average_polysemy('n')
1
> But you'll probably find it better to work with the set directly,
>
> instead of uniquifying a list as a separate operation.
Yes, the following second methods still runs faster if I don't give a separate variable name to list(set(lemma_list)). Why will this happen?
>>> def average_polysemy(pos):
synset_list = list(wn.all_synsets(pos))
sense_number = 0
lemma_list = []
for synset in synset_list:
lemma_list.extend(synset.lemma_names)
for lemma in list(set(lemma_list)):
sense_number_new = len(wn.synsets(lemma, pos))
sense_number = sense_number + sense_number_new
return sense_number/len(set(lemma_list))
>>> average_polysemy('n')
1
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Is there a unique method in python to unique a list? Token Type <typetoken@gmail.com> - 2012-09-08 22:43 -0700
Re: Is there a unique method in python to unique a list? Chris Angelico <rosuav@gmail.com> - 2012-09-09 15:48 +1000
Re: Is there a unique method in python to unique a list? Chris Angelico <rosuav@gmail.com> - 2012-09-09 16:32 +1000
Re: Is there a unique method in python to unique a list? Token Type <typetoken@gmail.com> - 2012-09-08 23:44 -0700
Re: Is there a unique method in python to unique a list? Paul Rubin <no.email@nospam.invalid> - 2012-09-09 01:41 -0700
Re: Is there a unique method in python to unique a list? Paul Rubin <no.email@nospam.invalid> - 2012-09-09 02:06 -0700
Re: Is there a unique method in python to unique a list? Token Type <typetoken@gmail.com> - 2012-09-09 06:44 -0700
Re: Is there a unique method in python to unique a list? Chris Angelico <rosuav@gmail.com> - 2012-09-10 00:13 +1000
Re: Is there a unique method in python to unique a list? Serhiy Storchaka <storchaka@gmail.com> - 2012-09-09 11:36 +0300
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