Removing list of words from a string

Question

I have a list of stopwords. And I have a search string. I want to remove the words from the string.

As an example:

stopwords=['what','who','is','a','at','is','he'] query='What is hello' 

Now the code should strip 'What' and 'is'. However in my case it strips 'a', as well as 'at'. I have given my code below. What could I be doing wrong?

for word in stopwords:     if word in query:         print word         query=query.replace(word,"") 

If the input query is "What is Hello", I get the output as:
wht s llo

Why does this happen?

Answer 1

This is one way to do it:

query = 'What is hello' stopwords = ['what', 'who', 'is', 'a', 'at', 'is', 'he'] querywords = query.split()  resultwords  = [word for word in querywords if word.lower() not in stopwords] result = ' '.join(resultwords)  print(result) 

I noticed that you want to also remove a word if its lower-case variant is in the list, so I've added a call to lower() in the condition check.