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Fix docs formatting and phrasing for some datasets (#107)
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* Fix docs formatting and phrasing for some datasets

Signed-off-by: Deepyaman Datta <[email protected]>

* Manually fix files not resolved with patch command

Signed-off-by: Deepyaman Datta <[email protected]>

* Apply fix from #98

Signed-off-by: Deepyaman Datta <[email protected]>

---------

Signed-off-by: Deepyaman Datta <[email protected]>
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deepyaman authored Feb 1, 2023
1 parent 902d39d commit 39030d3
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35 changes: 17 additions & 18 deletions kedro-datasets/kedro_datasets/api/api_dataset.py
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Expand Up @@ -12,27 +12,26 @@ class APIDataSet(AbstractDataSet[None, requests.Response]):
"""``APIDataSet`` loads the data from HTTP(S) APIs.
It uses the python requests library: https://requests.readthedocs.io/en/latest/
Example adding a catalog entry with
`YAML API
<https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
Example usage for the
`YAML API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
>>> usda:
>>> type: api.APIDataSet
>>> url: https://quickstats.nass.usda.gov
>>> params:
>>> key: SOME_TOKEN,
>>> format: JSON,
>>> commodity_desc: CORN,
>>> statisticcat_des: YIELD,
>>> agg_level_desc: STATE,
>>> year: 2000
>>>
Example using Python API:
usda:
type: api.APIDataSet
url: https://quickstats.nass.usda.gov
params:
key: SOME_TOKEN,
format: JSON,
commodity_desc: CORN,
statisticcat_des: YIELD,
agg_level_desc: STATE,
year: 2000
Example usage for the
`Python API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-code-api>`_:
::
>>> from kedro_datasets.api import APIDataSet
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131 changes: 65 additions & 66 deletions kedro-datasets/kedro_datasets/dask/parquet_dataset.py
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Expand Up @@ -15,73 +15,72 @@ class ParquetDataSet(AbstractDataSet[dd.DataFrame, dd.DataFrame]):
remote data services to handle the corresponding load and save operations:
https://docs.dask.org/en/latest/how-to/connect-to-remote-data.html
Example adding a catalog entry with
`YAML API
<https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
>>> cars:
>>> type: dask.ParquetDataSet
>>> filepath: s3://bucket_name/path/to/folder
>>> save_args:
>>> compression: GZIP
>>> credentials:
>>> client_kwargs:
>>> aws_access_key_id: YOUR_KEY
>>> aws_secret_access_key: YOUR_SECRET
Example usage for the
`YAML API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
cars:
type: dask.ParquetDataSet
filepath: s3://bucket_name/path/to/folder
save_args:
compression: GZIP
credentials:
client_kwargs:
aws_access_key_id: YOUR_KEY
aws_secret_access_key: YOUR_SECRET
Example usage for the
`Python API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-code-api>`_:
::
>>> from kedro.extras.datasets.dask import ParquetDataSet
>>> import pandas as pd
>>> import dask.dataframe as dd
>>>
Example using Python API (AWS S3):
::
>>> from kedro_datasets.dask import ParquetDataSet
>>> import pandas as pd
>>> import dask.dataframe as dd
>>>
>>> data = pd.DataFrame({'col1': [1, 2], 'col2': [4, 5],
>>> 'col3': [[5, 6], [7, 8]]})
>>> ddf = dd.from_pandas(data, npartitions=2)
>>>
>>> data_set = ParquetDataSet(
>>> filepath="s3://bucket_name/path/to/folder",
>>> credentials={
>>> 'client_kwargs':{
>>> 'aws_access_key_id': 'YOUR_KEY',
>>> 'aws_secret_access_key': 'YOUR SECRET',
>>> }
>>> },
>>> save_args={"compression": "GZIP"}
>>> )
>>> data_set.save(ddf)
>>> reloaded = data_set.load()
>>>
>>> assert ddf.compute().equals(reloaded.compute())
The output schema can also be explicitly specified using Triad's grammar.
This is processed to map specific columns into pyarrow field types or schema.
References:
https://triad.readthedocs.io/en/latest/api/triad.collections.html#module-triad.collections.schema
https://arrow.apache.org/docs/python/api/datatypes.html
.. code-block:: yaml
>>> parquet_dataset:
>>> type: dask.ParquetDataSet
>>> filepath: "s3://bucket_name/path/to/folder"
>>> credentials:
>>> client_kwargs:
>>> aws_access_key_id: YOUR_KEY
>>> aws_secret_access_key: "YOUR SECRET"
>>> save_args:
>>> compression: GZIP
>>> schema:
>>> col1: [int32]
>>> col2: [int32]
>>> col3: [[int32]]
>>> data = pd.DataFrame({'col1': [1, 2], 'col2': [4, 5],
>>> 'col3': [[5, 6], [7, 8]]})
>>> ddf = dd.from_pandas(data, npartitions=2)
>>>
>>> data_set = ParquetDataSet(
>>> filepath="s3://bucket_name/path/to/folder",
>>> credentials={
>>> 'client_kwargs':{
>>> 'aws_access_key_id': 'YOUR_KEY',
>>> 'aws_secret_access_key': 'YOUR SECRET',
>>> }
>>> },
>>> save_args={"compression": "GZIP"}
>>> )
>>> data_set.save(ddf)
>>> reloaded = data_set.load()
>>>
>>> assert ddf.compute().equals(reloaded.compute())
The output schema can also be explicitly specified using
`Triad <https://triad.readthedocs.io/en/latest/api/\
triad.collections.html#module-triad.collections.schema>`_.
This is processed to map specific columns to
`PyArrow field types <https://arrow.apache.org/docs/python/api/\
datatypes.html>`_ or schema. For instance:
.. code-block:: yaml
parquet_dataset:
type: dask.ParquetDataSet
filepath: "s3://bucket_name/path/to/folder"
credentials:
client_kwargs:
aws_access_key_id: YOUR_KEY
aws_secret_access_key: "YOUR SECRET"
save_args:
compression: GZIP
schema:
col1: [int32]
col2: [int32]
col3: [[int32]]
"""

DEFAULT_LOAD_ARGS = {} # type: Dict[str, Any]
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27 changes: 13 additions & 14 deletions kedro-datasets/kedro_datasets/json/json_dataset.py
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Expand Up @@ -20,22 +20,21 @@ class JSONDataSet(AbstractVersionedDataSet[Any, Any]):
"""``JSONDataSet`` loads/saves data from/to a JSON file using an underlying
filesystem (e.g.: local, S3, GCS). It uses native json to handle the JSON file.
Example adding a catalog entry with the ``YAML API``:
Example usage for the
`YAML API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
>>> json_dataset:
>>> type: json.JSONDataSet
>>> filepath: data/01_raw/location.json
>>>
>>> cars:
>>> type: json.JSONDataSet
>>> filepath: gcs://your_bucket/cars.json
>>> fs_args:
>>> project: my-project
>>> credentials: my_gcp_credentials
Example using Python API:
cars:
type: json.JSONDataSet
filepath: gcs://your_bucket/cars.json
fs_args:
project: my-project
credentials: my_gcp_credentials
Example usage for the
`Python API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-code-api>`_:
::
>>> from kedro_datasets.json import JSONDataSet
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26 changes: 11 additions & 15 deletions kedro-datasets/kedro_datasets/matplotlib/matplotlib_writer.py
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Expand Up @@ -26,21 +26,21 @@ class MatplotlibWriter(
"""``MatplotlibWriter`` saves one or more Matplotlib objects as
image files to an underlying filesystem (e.g. local, S3, GCS).
Example adding a catalog entry with the `YAML API
<https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
Example usage for the
`YAML API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
>>> output_plot:
>>> type: matplotlib.MatplotlibWriter
>>> filepath: data/08_reporting/output_plot.png
>>> save_args:
>>> format: png
>>>
Example using the Python API:
output_plot:
type: matplotlib.MatplotlibWriter
filepath: data/08_reporting/output_plot.png
save_args:
format: png
Example usage for the
`Python API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-code-api>`_:
::
>>> import matplotlib.pyplot as plt
Expand All @@ -55,7 +55,6 @@ class MatplotlibWriter(
>>> plot_writer.save(fig)
Example saving a plot as a PDF file:
::
>>> import matplotlib.pyplot as plt
Expand All @@ -70,9 +69,7 @@ class MatplotlibWriter(
>>> plt.close()
>>> pdf_plot_writer.save(fig)
Example saving multiple plots in a folder, using a dictionary:
::
>>> import matplotlib.pyplot as plt
Expand All @@ -90,7 +87,6 @@ class MatplotlibWriter(
>>> dict_plot_writer.save(plots_dict)
Example saving multiple plots in a folder, using a list:
::
>>> import matplotlib.pyplot as plt
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43 changes: 22 additions & 21 deletions kedro-datasets/kedro_datasets/pandas/csv_dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,30 +25,31 @@ class CSVDataSet(AbstractVersionedDataSet[pd.DataFrame, pd.DataFrame]):
"""``CSVDataSet`` loads/saves data from/to a CSV file using an underlying
filesystem (e.g.: local, S3, GCS). It uses pandas to handle the CSV file.
Example adding a catalog entry with
`YAML API
<https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
Example usage for the
`YAML API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-yaml-api>`_:
.. code-block:: yaml
>>> cars:
>>> type: pandas.CSVDataSet
>>> filepath: data/01_raw/company/cars.csv
>>> load_args:
>>> sep: ","
>>> na_values: ["#NA", NA]
>>> save_args:
>>> index: False
>>> date_format: "%Y-%m-%d %H:%M"
>>> decimal: .
>>>
>>> motorbikes:
>>> type: pandas.CSVDataSet
>>> filepath: s3://your_bucket/data/02_intermediate/company/motorbikes.csv
>>> credentials: dev_s3
Example using Python API:
cars:
type: pandas.CSVDataSet
filepath: data/01_raw/company/cars.csv
load_args:
sep: ","
na_values: ["#NA", NA]
save_args:
index: False
date_format: "%Y-%m-%d %H:%M"
decimal: .
motorbikes:
type: pandas.CSVDataSet
filepath: s3://your_bucket/data/02_intermediate/company/motorbikes.csv
credentials: dev_s3
Example usage for the
`Python API <https://kedro.readthedocs.io/en/stable/data/\
data_catalog.html#use-the-data-catalog-with-the-code-api>`_:
::
>>> from kedro_datasets.pandas import CSVDataSet
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