Downloading from AWS using boto3

Utility to help me remember the next time I've download stuff from AWS coz what horrible documentation the library has :-/

Author: abhiramr

Utilities/download_files_from_aws

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+import boto3
+import os
+
+# Never do this unless you're using it to validate data on a trusted system. 
+# This kind of value setting is extremely irresponsible. 
+os.environ['AWS_DEFAULT_REGION']="region"
+os.environ["AWS_SECRET_ACCESS_KEY"]="aws_secret_access_key"
+os.environ["AWS_ACCESS_KEY_ID"]="aws_access_key_id"
+os.environ['BUCKET_NAME']='bucket_name'
+# I've behaved very irresponsibly
+
+cloud_storage_path = '<bucket_name>/<sub_folder_path>'
+
+def download_objects_from_folder(prefix,dest_folder):
+    try:
+        s3_ = boto3.resource('s3')
+        bucket_ = s3_.Bucket(os.environ['BUCKET_NAME'])
+        objects = my_bucket.objects.filter(Prefix=prefix)
+        print("Objects = {}".format(objects))
+        for obj in objects:
+            path, filename = os.path.split(obj.key)
+            print(filename)
+            bucket_.download_file(obj.key, os.path.join(dest_folder,str(filename) ))
+    except Exception as e:
+        print(e)
+
+list_of_contents = download_objects_from_folder(os.path.join(cloud_storage_path, "some_prefix"),"/tmp/some_destination_folder_that_exists")