How to make a sublists for each strings inside a list in python?

Question

For example, I have this list :

word1 =  ['organization', 'community']

And I have a function to get a synonyms from the words of the list :

from nltk.corpus import wordnet as wn


def getSynonyms(word1):
    synonymList1 = []
    for data1 in word1:
        wordnetSynset1 = wn.synsets(data1)
        tempList1 = []
        for synset1 in wordnetSynset1:
            synLemmas = synset1.lemma_names()
            for s in synLemmas:
                word = s.replace('_', ' ')
                if word not in tempList1:
                    tempList1.append(word)
        synonymList1.append(tempList1)
    return synonymList1


syn1 = getSynonyms(word1)
print(syn1)

and here's the output :

[
    ['organization', 'organisation', 'arrangement', 'system', 'administration',
     'governance', 'governing body', 'establishment', 'brass', 'constitution',
     'formation'],
    ['community', 'community of interests', 'residential district',
     'residential area', 'biotic community']
]

^ the output above shows that each synsets for both 'organization' and 'community' are sublisted inside a list. and then I reduce the level of list :

newlist1 = [val for sublist in syn1 for val in sublist]

and here's the output :

['organization', 'organisation', 'arrangement', 'system', 'administration',
 'governance', 'governing body', 'establishment', 'brass', 'constitution',
 'formation', 'community', 'community of interests', 'residential district',
 'residential area', 'biotic community']

^ now all the synsets remain the same strings without sublist. and what I'm trying to do now is to make all the synsets in newlist1 to be sublisted each other. I expect the output would be like this :

[['organization'], ['organisation'], ['arrangement'], ['system'],
 ['administration'], ['governance'], ['governing body'], ['establishment'],
 ['brass'], ['constitution'], ['formation'], ['community'],
 ['community of interests'], ['residential district'], ['residential area'],
 ['biotic community']]

I'm trying this code :

uplist1 = [[] for x in syn1]
uplist1.extend(syn1)
print(uplist1)

but the results is not what I expected:

[[], [],
 ['organization', 'organisation', 'arrangement', 'system', 'administration',
  'governance', 'governing body', 'establishment', 'brass', 'constitution',
  'formation'],
 ['community', 'community of interests', 'residential district',
  'residential area', 'biotic community']]

It shows two empty lists and two lists of synsets for both 'organization' and 'community'

How to make each strings of synsets a sublist?

Henry Ecker · Accepted Answer · 2021-11-29 01:55:54Z

3

Take each element in syn1 and wrap in [] to make it a sublist.

Either with append:

uplist1 = []
for i in syn1:
    uplist1.append([i])

Or with the list comprehension equivalent:

uplist1 = [[i] for i in syn1]

edited Nov 29, 2021 at 1:55

Henry Ecker♦

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answered Jul 22, 2017 at 23:12

meow

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1 Comment

sang Over a year ago

I'm sorry sir, not like that.

[[[u'organization', u'organisation', u'arrangement', u'system', u'administration', u'governance', u'governing body', u'establishment', u'brass', u'constitution', u'formation']], [[u'community', u'community of interests', u'residential district', u'residential area', u'biotic community']]]

<< it appends a list for synset group but not for each strings

Mohd · Accepted Answer · 2017-07-22 23:35:27Z

1

You need to add brackets [] to val in your list-comprehension to put each string in a list when creating newlist1, for example:

newlist1 = [[val] for sublist in syn1 for val in sublist]

answered Jul 22, 2017 at 23:35

Mohd

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2 Comments

Mohd Over a year ago

@ChristianDean why do that when it can be done when creating newlist1?

Chris Over a year ago

Ah, my apologizes. I didn't realize you were also flattening syn1 and not just iterating over it.

Chris · Accepted Answer · 2017-07-22 23:35:45Z

0

Simply use a list comprehension and wrap each item in a list:

>>> lst = [[el] for el in newlist1]
[['organization'],
 ['organisation'],
 ['arrangement'],
 ['system'],
 ['administration'],
 ['governance'],
 ['governing body'],
 ['establishment'],
 ['brass'],
 ['constitution'],
 ['formation'],
 ['community'],
 ['community of interests'],
 ['residential district'],
 ['residential area'],
 ['biotic community']]

answered Jul 22, 2017 at 23:35

Chris

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Comments

Henry Ecker · Accepted Answer · 2021-11-29 01:45:37Z

0

Thanks to Meow's answer above who gave me inspiration. I came up with this:

upuplist1 = []
for i in newlist1:
    upuplist1.append([i])

print(upuplist1)

Here's the output what I expected :

[[u'organization'], [u'organisation'], [u'arrangement'], [u'system'], [u'administration'], [u'governance'], [u'governing body'], [u'establishment'], [u'brass'], [u'constitution'], [u'formation'], [u'community'], [u'community of interests'], [u'residential district'], [u'residential area'], [u'biotic community']]

edited Nov 29, 2021 at 1:45

Henry Ecker♦

35.8k19 gold badges48 silver badges67 bronze badges

answered Jul 22, 2017 at 23:21

sang

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1 Comment

sang Over a year ago

I implement it for list 'newlist1'

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