code: def s3_get_url(url,
                 altexts=None,
                 client=None,
                 raiseonfail=False):
      
  
      bucket_item = url.replace('s3://','')
      bucket_item = bucket_item.split('/')
      bucket = bucket_item[0]
      filekey = '/'.join(bucket_item[1:])
  
      return s3_get_file(bucket,
                         filekey,
                         bucket_item[-1],
                         altexts=altexts,
                         client=client,
                         raiseonfail=raiseonfail)
docs: This gets a file from an S3 bucket based on its s3:// URL.
  
      Parameters
      ----------
  
      url : str
          S3 URL to download. This should begin with 's3://'.
  
      altexts : None or list of str
          If not None, this is a list of alternate extensions to try for the file
          other than the one provided in `filename`. For example, to get anything
          that's an .sqlite where .sqlite.gz is expected, use altexts=[''] to
          strip the .gz.
  
      client : boto3.Client or None
          If None, this function will instantiate a new `boto3.Client` object to
          use in its operations. Alternatively, pass in an existing `boto3.Client`
          instance to re-use it here.
  
      raiseonfail : bool
          If True, will re-raise whatever Exception caused the operation to fail
          and break out immediately.
  
      Returns
      -------
  
      str
          Path to the downloaded filename or None if the download was
          unsuccessful. The file will be downloaded into the current working
          directory and will have a filename == basename of the file on S3.