For all errors related to NLTK, pls do the following

echo -e "export LC_ALL=en_US.UTF-8\nexport LANG=en_US.UTF-8" >> ~/.bash_profile && source ~/.bash_profile

Added this: For AWS comprehend set-up:

1. -> brew install awscli
2. -> pip install boto3
3. -> aws configure -
4. for access key (get it from AWS account), region (choose it from available regions for Comprehend (ex: eu-west-1), output format: json
5. -> Copy the three lines of python code from here: https://docs.aws.amazon.com/comprehend/latest/dg/get-started-api-entities.html#get-started-api-entities-python Remember to replace region with ‘eu-west-1’ always