List Problem : "Want to get a single list"

Question

I want to count words from a dataframe. First I convert the dataframe's column to a list named "lst". and the list is here-

['তাদের উত্তরের মধ্যে সামরিকতার ঝাঁজ ছিল',
 'ফোন করে যা শুনেছি তা তো মানুষ জানে আমরা তো এগুলো শুনতে অভ্যস্ত না']

Then I try this code-

lst1 = []
count=0

for i in lst:
  count += 1
  lst1.append(i.split(' '))

count

and the result of lst1[:2] is -

[['তাদের', 'উত্তরের', 'মধ্যে', 'সামরিকতার', 'ঝাঁজ', 'ছিল'],
 ['ফোন',
  'করে',
  'যা',
  'শুনেছি',
  'তা',
  'তো',
  'মানুষ',
  'জানে',
  'আমরা',
  'তো',
  'এগুলো',
  'শুনতে',
  'অভ্যস্ত',
  'না']]

But I want to a list where all words are in a single list. I want like this-

['তাদের', 'উত্তরের', 'মধ্যে', 'সামরিকতার', 'ঝাঁজ', 'ছিল', 'ফোন','করে','যা','শুনেছি','তা',......,'না']

How can I do this? What should I change to get this?

After creating a list from the DataFrame, the question is **no longer anything to do with Pandas**. — Karl Knechtel, Sep 06 '22 at 02:57

score 1 · Accepted Answer · answered Mar 20 '21 at 07:34

Just try this. Here I use extend function. extend() is the function extended by lists in Python and hence can be used to perform this task. This function performs the inplace extension of the list. So it takes one by one from the "lst1" and adds to the final list.

lst_final = []

for i in lst1:
  lst_final.extend(i)

score 1 · Answer 2 · answered Mar 20 '21 at 07:39

You can use list.extend() method to get a single list in the end.

lst = ['তাদের উত্তরের মধ্যে সামরিকতার ঝাঁজ ছিল',
 'ফোন করে যা শুনেছি তা তো মানুষ জানে আমরা তো এগুলো শুনতে অভ্যস্ত না']

lst1 = []
count=0

for i in lst:
    lst1.extend(i.split(' '))

Output: ['তাদের', 'উত্তরের', 'মধ্যে', 'সামরিকতার', 'ঝাঁজ', 'ছিল', 'ফোন', 'করে', 'যা', 'শুনেছি', 'তা', 'তো', 'মানুষ', 'জানে', 'আমরা', 'তো', 'এগুলো', 'শুনতে', 'অভ্যস্ত', 'না']

score 0 · Answer 3 · answered Mar 20 '21 at 07:27

0

i.split(' ') returns an array which you then append to an array making an array of arrays. I think you want something like lst1.concat

for i in lst:
  count += 1
  lst1.concat(i.split(' '))

answered Mar 20 '21 at 07:27

Richard Barker

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Does list objects have concat property? – FugitiveMemories Mar 20 '21 at 07:29
Pandas version of list objects does – Richard Barker Mar 20 '21 at 07:30

List Problem : "Want to get a single list"

3 Answers3