How to use the boto.exception.S3ResponseError function in boto

def download(directory):
    mark_uploaded(cache_name)  # reset
    try:
        print("Downloading {} tarball from S3...".format(cache_name))
        with timer():
            key.get_contents_to_filename(_tarball_filename_for(directory))
    except S3ResponseError as err:
        mark_needs_uploading(cache_name)
        raise SystemExit("Cached {} download failed!".format(cache_name))
    print("Downloaded {}.".format(_tarball_size(directory)))
    _extract_tarball(directory)
    print("{} successfully installed from cache.".format(cache_name))

def get_specified_bucket(sitename):
    """
    Returns the bucket for the specified sitename.
    """
    from boto.s3.connection import S3Connection

    conn = S3Connection()
    from boto.exception import S3ResponseError

    try:
        bucket = conn.get_bucket(sitename)
        bucket.get_website_configuration()
    except S3ResponseError:
        raise NoSuchBucket
    return bucket

:type headers: dict
        :param headers: Headers to pass in the web request
        
        :type query_args: string
        :param query_args: Arguments to pass in the query string (ie, 'torrent')
        """
        if self.resp == None:
            self.mode = 'r'
            
            self.resp = self.bucket.connection.make_request('GET',
                                                            self.bucket.name,
                                                            self.name, headers,
                                                            query_args=query_args)
            if self.resp.status < 199 or self.resp.status > 299:
                body = self.resp.read()
                raise S3ResponseError(self.resp.status, self.resp.reason, body)
            response_headers = self.resp.msg
            provider = self.bucket.connection.provider
            self.metadata = boto.utils.get_aws_metadata(response_headers,
                                                        provider)
            for name,value in response_headers.items():
                if name.lower() == 'content-length':
                    self.size = int(value)
                elif name.lower() == 'etag':
                    self.etag = value
                elif name.lower() == 'content-type':
                    self.content_type = value
                elif name.lower() == 'content-encoding':
                    self.content_encoding = value
                elif name.lower() == 'last-modified':
                    self.last_modified = value
                elif name.lower() == 'cache-control':

def _get_or_create_bucket(self, name):
        """Retrieves a bucket if it exists, otherwise creates it."""
        try:
            return self.connection.get_bucket(name)
        except S3ResponseError, e:
            if AUTO_CREATE_BUCKET:
                return self.connection.create_bucket(name)
            raise ImproperlyConfigured, ("Bucket specified by "
            "AWS_STORAGE_BUCKET_NAME does not exist. Buckets can be "

def get_xml_acl(self, key_name='', headers=None):
        response = self.connection.make_request('GET', self.name, key_name,
                                                query_args='acl', headers=headers)
        body = response.read()
        if response.status != 200:
            raise S3ResponseError(response.status, response.reason, body)
        return body

def _s3_set(args, keyname, filename):
    try:
        bucket = _s3_bucket(args)
    except S3ResponseError:
        bucket = boto.connect_s3(args.accesskey, args.secretkey).create_bucket(
            args.bucket,
            location=Location.DEFAULT
        )
    k = Key(bucket)
    k.key = keyname
    k.set_contents_from_filename(filename)

def smart_download_s3_keys(s3conn, bucket_name, prefix, target, creds):
    start = time.time()

    try:
        bucket   = s3conn.get_bucket(bucket_name, validate=False)
        key      = bucket.get_key(prefix)

        if key.size > 10*1024*1024 :
            print "File > 10Mb: downloading with s3 cli"
            duration = fast_download_s3_keys(creds, bucket_name, prefix, target)
        else:
            print "File < 10Mb: using get_contents_to_file"
            key.get_contents_to_filename(target)
            duration = time.time() - start

    except boto.exception.S3ResponseError, e :
        print "ERROR: Caught S3ResponseError: ", e
        return -1 

    except Exception, e:
        print "ERROR: Could not access the bucket"
        raise

    return duration

def get_acl(self, key_name='', headers=None, version_id=None):
        query_args = 'acl'
        if version_id:
            query_args += '&versionId=%s' % version_id
        response = self.connection.make_request('GET', self.name, key_name,
                                                query_args=query_args,
                                                headers=headers)
        body = response.read()
        if response.status == 200:
            policy = Policy(self)
            h = handler.XmlHandler(policy, self)
            xml.sax.parseString(body, h)
            return policy
        else:
            raise S3ResponseError(response.status, response.reason, body)

def _get_bucket(self, bucket_name):
        """ Sometimes a handle to a bucket is not established right away so try
        it a few times. Raise error is connection is not established. """
        for i in range(5):
            try:
                bucket = self.conn.get_bucket(bucket_name)
                log.debug("Using cloud object store with bucket '%s'", bucket.name)
                return bucket
            except S3ResponseError:
                try:
                    log.debug("Bucket not found, creating s3 bucket with handle '%s'", bucket_name)
                    self.conn.create_bucket(bucket_name)
                except S3ResponseError:
                    log.exception("Could not get bucket '%s', attempt %s/5", bucket_name, i + 1)
                    time.sleep(2)
        # All the attempts have been exhausted and connection was not established,
        # raise error
        raise S3ResponseError

i = 0
                for k in bucket.list():
                    i = i + 1
                    keys.append(k.key)
                    if i == 10:
                        break
                issues.append('READ<ul><li>%s</li></ul>' % '<li>'.join(keys))
            except S3ResponseError as error:
                print('Error Code (list): ' + str(error.error_code))
                if self.wordlist_path:
                    enumerate_keys(bucket, bucket_name, 'GS')
            try:
                key = bucket.new_key('test.txt')
                key.set_contents_from_string('')
                issues.append('WRITE<ul><li>test.txt</li></ul>')
            except S3ResponseError as error:
                print('Error Code (set_contents_from_string): ' + str(error.error_code))

            try:
                bucket.add_email_grant('FULL_CONTROL', 0)
                issues.append('FULL_CONTROL')
            except S3ResponseError as error:
                if error.error_code == 'UnresolvableGrantByEmailAddress':
                    issues.append('FULL_CONTROL')
                else:
                    print('Error Code (add_email_grant): ' + str(error.error_code))
            except AttributeError as error:
                if error.message.startswith("'Policy'"):
                    issues.append('FULL_CONTROL')
                else:
                    raise
        elif bucket_type == 'Azure':</li>