csv.py

CSV dataclass

Bases: IO[Iterable[Iterable[Any]]]

IO representing a CSV file.

Example usage:

>>> from ordeq_files import CSV
>>> from pathlib import Path
>>> computer_sales = CSV(
...     path=Path("path/to/computer_sales.csv")
... )

Example in a node:

>>> from ordeq import node
>>> computer_sales_in_nl = CSV(path=Path("computer_sales_nl.csv"))
>>> @node(
...     inputs=computer_sales,
...     outputs=computer_sales_in_nl
... )
... def filter_computer_sales(computer_sales: list) -> list:
...     return [row for row in computer_sales if row[1] == "NL"]

Loading and saving can be configured with additional parameters, e.g:

>>> computer_sales.load(quotechar='"', delimiter=',')  # doctest: +SKIP
>>> computer_sales.with_load_options(dialect='excel').load()  # doctest: +SKIP
>>> data = [["NL", "2023-10-01", 1000], ["BE", "2023-10-02", 1500]]
>>> computer_sales.save(data, quoting=csv.QUOTE_MINIMAL)  # doctest: +SKIP

Refer to 1 for more details on the available options.