WordListCorpusReader' object has no attribute 'add'

Question

enter image description here

Code:

import re
import nltk
nltk.download('stopwords')

stopwords = stopwords
stopwords.add('will')
wordcloud = WordCloud(width = 3000, height = 2000, background_color='black', max_words=100,colormap='Set2',stopwords=stopwords).generate(text)
# Plot
plot_cloud(wordcloud)

Error:

AttributeError                            Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_2724/2521944359.py in <module>
      5 
      6 stopwords = stopwords
----> 7 stopwords.add('will')
      8 wordcloud = WordCloud(width = 3000, height = 2000, background_color='black', max_words=100,colormap='Set2',stopwords=stopwords).generate(text)
      9 # Plot

AttributeError: 'WordListCorpusReader' object has no attribute 'add'