我们从Python开源项目中，提取了以下7个代码示例，用于说明如何使用botocore.utils()。
def add_glacier_checksums(params, **kwargs): """Add glacier checksums to the http request. This will add two headers to the http request: * x-amz-content-sha256 * x-amz-sha256-tree-hash These values will only be added if they are not present in the HTTP request. """ request_dict = params headers = request_dict['headers'] body = request_dict['body'] if isinstance(body, six.binary_type): # If the user provided a bytes type instead of a file # like object, we're temporarily create a BytesIO object # so we can use the util functions to calculate the # checksums which assume file like objects. Note that # we're not actually changing the body in the request_dict. body = six.BytesIO(body) starting_position = body.tell() if 'x-amz-content-sha256' not in headers: headers['x-amz-content-sha256'] = utils.calculate_sha256( body, as_hex=True) body.seek(starting_position) if 'x-amz-sha256-tree-hash' not in headers: headers['x-amz-sha256-tree-hash'] = utils.calculate_tree_hash(body) body.seek(starting_position)
def document_glacier_tree_hash_checksum(): doc = ''' This is a required field. Ideally you will want to compute this value with checksums from previous uploaded parts, using the algorithm described in `Glacier documentation <http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html>`_. But if you prefer, you can also use botocore.utils.calculate_tree_hash() to compute it from raw file by:: checksum = calculate_tree_hash(open('your_file.txt', 'rb')) ''' return AppendParamDocumentation('checksum', doc).append_documentation
