Removing words from list in python

Removing words from list in python

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I have a list 'abc' (strings) and I am trying to remove some words present in list 'stop' from the list 'abc' and all the digits present in abc.

abc=[ 'issues in performance 421',
 'how are you doing',
 'hey my name is abc, 143 what is your name',
 'attention pleased',
 'compliance installed 234']
stop=['attention', 'installed']

I am using list comprehension to remove it but this below code is not able to remove that word.

new_word=[word for word in abc if word not in stop ]

Result:(attention word is still present.)

['issues in performance',
 'how are you doing',
 'hey my name is abc, what is your name',
 'attention pleased',
 'compliance installed']

Desired output:

 ['issues in performance',
     'how are you doing',
     'hey my name is abc, what is your name',
     'pleased',
     'compliance']

Thanks


Here is a solution, using simple regular expression with the re.sub method. This solution removes numbers as well.

import re

abc=[ 'issues in performance 421',
 'how are you doing',
 'hey my name is abc, 143 what is your name',
 'attention pleased',
 'compliance installed 234']
stop=['attention\s+', 'installed\s+', '[0-9]']

[(lambda x: re.sub(r'|'.join(stop), '', x))(x) for x in abc]


'Output':
['issues in performance ',
'how are you doing',
 'hey my name is abc,  what is your name',
 'pleased',
 'compliance ']

Removing words from list in python, Here is a solution, using simple regular expression with the re.sub method. This solution removes numbers as well. import re abc=[ 'issues in  obj − This is the object to be removed from the list. Return Value This Python list method does not return any value but removes the given object from the list.


You need to split each phrase into words and re-join the words into phrases after filtering out those in stop.

[' '.join(w for w in p.split() if w not in stop) for p in abc]

This outputs:

['issues in performance', 'how are you doing', 'hey my name is abc, what is your name', 'pleased', 'compliance installed']

Python List remove(), Python List remove() The remove() method takes a single element as an argument and removes it from the list. If the element doesn't exist, it throws ValueError: list.remove(x): x not in list exception. To remove stop words from a sentence, you can divide your text into words and then remove the word if it exits in the list of stop words provided by NLTK. Let's see a simple example: from nltk.corpus import stopwords nltk.download('stopwords') from nltk.tokenize import word_tokenize text = "Nick likes to play football, however he is not too fond of tennis."


list1 = []
for word in abc:
    word1 = ''
    for remove_word in stop:
        word1 = remove_word
        word1 = word.replace(word1, '')
    list1.append(word1)

Python - Remove words containing list characters, Python – Remove words containing list characters. Sometimes, in the process of data filtering we have a problem in which we need to remove words which are  del is a powerful statement for removing list values in python. Using it, we can remove an element using a specific index. Using it, we can remove an element using a specific index. pop method also takes one index and remove the element at this index.


This is how I'd do it at least:

abc=[ 'issues in performance 421',
    'how are you doing',
    'hey my name is abc, 143 what is your name',
    'attention pleased',
    'compliance installed 234'
]
stop=['attention', 'installed']
for x, elem in enumerate(abc):
    abc[x] = " ".join(filter(lambda x: x not in stop and not x.isdigit(), elem.split()))
print(abc)

result:

['issues in performance',
    'how are you doing',
    'hey my name is abc, what is your name',
    'pleased',
    'compliance']

Hope it helps in any way :)

Python List remove() Method, Python list method remove() searches for the given element in the list and removes the first matching element. Syntax. Following is the syntax for remove() method  Remove an item from a list in Python (clear, pop, remove, del) Remove all items: clear() Remove an item by index and get its value: pop() Remove an item by value: remove() Remove items by index or slice: del. Remove multiple items that meet the condition: List comprehensions.


It's just need to use set will good to this question. Because you maybe have more than one word at each item, so you can't use in. you should use set with & to get the public word. If it's exists public word with your stop set will return True. Because you only care about the rest part , so we can use if not here.

new_word=[word for word in abc if  not set(word.split(' ')) & set(stop)]

UPDATE

If you also want to delete all include digit item, you just simple do it with the following :

new_word=[word for word in abc if  not (set(word.split(' ')) & set(stop) or any([i.strip().isdigit() for i in word.split(' ')]))]

How to remove an item from a python list, You can remove an item from a list in three ways: 1. using list object's remove() method. Here you need to specify an item to be removed. If there are multiple  Using set() Function to Remove Duplicate Items from list As we know that set is the unordered collection of unique elements. Python internally uses the hash technique to process sets. It is quite simple and fast method to remove duplicate items from Python list.


Remove Elements From Lists | Python List remove() Method, In simple words, if you define an array of type integer, you can only store integers in it. This is where Python has an advantage. With its list  The remove () method removes the first matching element (which is passed as an argument) from the list. The syntax of the remove () method is: The remove () method takes a single element as an argument and removes it from the list. If the element doesn't exist, it throws ValueError: list.remove (x): x not in list exception.


How to Clean Text for Machine Learning with Python, Clean text often means a list of words or tokens that we can work with in our machine learning Split by Whitespace and Remove Punctuation. Removing stop words with NLTK in Python. The process of converting data to something a computer can understand is referred to as pre-processing. One of the major forms of pre-processing is to filter out useless data. In natural language processing, useless words (data), are referred to as stop words.


Removing Stop Words from Strings in Python, NLTK supports stop word removal, and you can find the list of stop words in the corpus module. To remove stop words from a sentence, you can divide your text  Learn how to remove duplicates from a List in Python. Create a dictionary, using the List items as keys. This will automatically remove any duplicates because dictionaries cannot have duplicate keys. Now we have a List without any duplicates, and it has the same order as the original List. If you like to have a function where you can send your