Make Stop Word list independant from the installation directory

[espoirMur]

• OCTIS version: '1.5.0'
• Python version: 3.7
• Operating System: Mac

Description

I am trying to preprocess some custom corpus and When I am trying to remove stop word here is what I get.

What I Did

preprocessor = Preprocessing(vocabulary=None, max_features=None, 
                             remove_punctuation=True, punctuation=string.punctuation,
                             lemmatize=True, stopword_list='english',
                             min_chars=1, min_words_docs=0)
# preprocess
dataset = preprocessor.preprocess_dataset(documents_path=corpus_path)

And I am getting the following error.

ndexes)
    101             else:
    102                 if 'english' in stopword_list:
--> 103                     with open('octis/preprocessing/stopwords/english.txt') as fr:
    104                         stopwords = [line.strip() for line in fr.readlines()]
    105                         assert stopword_list == language

FileNotFoundError: [Errno 2] No such file or directory: 'octis/preprocessing/stopwords/english.txt'

More context I am using jupyter notebook.

A possible solution.. it may be useful to use pathlib to handle those type of path.

If I fix it locally I can raise a PR soon