How to use Python list?

Question

I have python list like below.

lst = ['paragraph 1','paragraph 2','paragraph 3']

I'm trying to make corpus of them with Pattern library - http://www.clips.ua.ac.be/pages/pattern-vector

As their example it should be like this ..

d1 = Document('paragraph 1')
d2 = Document('paragraph 2')
d3 = Document('paragraph 3')

corpus = Corpus(documents=[d1,d2,d3])

How can i make corpus liks this with my python list ?

You should change list to paragraphs or something else as you are losing access to the built-in list — jamylak
– jamylak, Commented Apr 21, 2012 at 6:15
Even for an example it's bad practice but almost everybody does this on every question on this site... — jamylak
– jamylak, Commented Apr 21, 2012 at 6:32

San4ez · Accepted Answer · 2012-04-21 06:13:36Z

6

lst = ['paragraph 1','paragraph 2','paragraph 3']
corpus = Corpus(documents=[Document(x) for x in lst])

answered Apr 21, 2012 at 6:13

San4ez

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Comments

Jeff · Accepted Answer · 2012-04-21 06:14:13Z

5

You can use the map method

l = ['paragraph 1','paragraph 2','paragraph 3']
corpus = Corpus(map(Document, l))

answered Apr 21, 2012 at 6:14

Jeff

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Comments

jamylak · Accepted Answer · 2012-04-21 06:13:44Z

1

Not fully sure if this is what you want but I'm assuming you need a list comprehension.

paragraphs = ['paragraph 1','paragraph 2','paragraph 3']
corpus = Corpus(documents=[Document(d) for d in paragraphs])

answered Apr 21, 2012 at 6:13

jamylak

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Comments

Etienne Perot · Accepted Answer · 2012-04-21 06:21:37Z

1

The question doesn't specify whether it should use list comprehension or not. In the particular example given in the question, list comprehension is a fine and concise solution. However, in case the op is not asking for list comprehension for about a more general solution to working with lists in Python, here is the more verbose iterative method:

paragraphs = ['paragraph 1','paragraph 2','paragraph 3']
docs = []
for p in paragraphs:
    docs.append(Document(p))
corpus = Corpus(documents=docs)

answered Apr 21, 2012 at 6:21

Etienne Perot

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2 Comments

jamylak Over a year ago

I don't see any reason why the OP would ever need to do this.

Etienne Perot Over a year ago

In this example, he shouldn't, as noted in the answer. I am merely putting this out there in case iteration really was what he was looking for, while giving an example in which list comprehension was a better choice.

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