text: Title: Unable to get local issuer certificate CentOS_7
  Body: Hi, 
  I'm trying to download the punkt package using nltk.download('punkt') command and I got the following error:
  
  [nltk_data] Error loading punkt: <urlopen error [SSL:
  [nltk_data]     CERTIFICATE_VERIFY_FAILED] certificate verify failed:
  [nltk_data]     unable to get local issuer certificate (_ssl.c:1002)>
  
  I'm using python 3.11 (pyenv) on CenOS7.
  
  Thank you for your Help.