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\',\'         


        

Answer 1

building on what karthikr said, try

' '.join(filter(lambda x: x.lower() not in stopwords,  query.split()))

explanation:

query.split() #splits variable query on character ' ', e.i. "What is hello" -> ["What","is","hello"]

filter(func,iterable) #takes in a function and an iterable (list/string/etc..) and
                      # filters it based on the function which will take in one item at
                      # a time and return true.false

lambda x: x.lower() not in stopwords   # anonymous function that takes in variable,
                                       # converts it to lower case, and returns true if
                                       # the word is not in the iterable stopwords


' '.join(iterable) #joins all items of the iterable (items must be strings/chars)
                   #using the string/char in front of the dot, i.e. ' ' as a joiner.
                   # i.e. ["What", "is","hello"] -> "What is hello"