kedro.io.JSONLocalDataSet¶
-
class
kedro.io.
JSONLocalDataSet
(filepath, load_args=None, save_args=None, version=None)[source]¶ JSONLocalDataSet
encodes data as json and saves it to a local file or reads in and decodes an existing json file. The encoding/decoding functionality is provided by Python’sjson
library.Example:
from kedro.io import JSONLocalDataSet my_dict = { 'a_string': 'Hello, World!', 'a_list': [1, 2, 3] } data_set = JSONLocalDataSet(filepath="test.json") data_set.save(my_dict) reloaded = data_set.load() assert my_dict == reloaded
-
__init__
(filepath, load_args=None, save_args=None, version=None)[source]¶ Creates a new instance of
JSONLocalDataSet
pointing to a concrete filepath.Parameters: - filepath (
str
) – path to a local json file. - load_args (
Optional
[Dict
[str
,Any
]]) – Arguments passed on to`json.load
. See https://docs.python.org/3/library/json.html for details. All defaults are preserved. - save_args (
Optional
[Dict
[str
,Any
]]) – Arguments passed on to`json.dump
. See https://docs.python.org/3/library/json.html for details. All defaults are preserved. - version (
Optional
[Version
]) – If specified, should be an instance ofkedro.io.core.Version
. If itsload
attribute is None, the latest version will be loaded. If itssave
attribute is None, save version will be autogenerated.
Return type: None
- filepath (
Methods
__init__
(filepath[, load_args, save_args, …])Creates a new instance of JSONLocalDataSet
pointing to a concrete filepath.exists
()Checks whether a data set’s output already exists by calling the provided _exists() method. from_config
(name, config[, load_version, …])Create a data set instance using the configuration provided. load
()Loads data by delegation to the provided load method. save
(data)Saves data by delegation to the provided save method. -