import json,boto3

def notebook2py(nb_bucket,nb_key,py_bucket,py_key):
   s3c = boto3.client('s3')
   obj = s3c.get_object(Bucket=nb_bucket, Key=nb_key)
   content = json.loads(obj['Body'].read())

   notebook_text = ['\n'+item['text'][8::] for item in content['paragraphs'] if 'enabled' in item['config'] and item['config']['enabled']==True and item['text'].startswith('%pyspark')]

   io_handle = StringIO('\n'.join(notebook_text))
   s3c.put_object(Bucket=py_bucket, Key=py_key, Body=io_handle.read())