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CSV Tutorial

CSV is a file format which you can you in Frictionless for reading and writing. Arguable it's the main Open Data format so it's supported very well in Frictionless.

Reading Data#

You can read this format using Package/Resource, for example:

Python
from pprint import pprint
from frictionless import Resource
resource = Resource('data/table.csv')
pprint(resource.read_rows())
[{'id': 1, 'name': 'english'}, {'id': 2, 'name': '中国人'}]

Writing Data#

The same is actual for writing:

Python
from frictionless import Resource
source = Resource(data=[['id', 'name'], [1, 'english'], [2, 'german']])
target = source.write('table.csv')
pprint(target)
pprint(target.read_rows())
{'path': 'table.csv'}
[{'id': 1, 'name': 'english'}, {'id': 2, 'name': 'german'}]

Configuring Data#

There is a dialect to configure how Frictionless read and write files in this format. For example:

Python
from frictionless import Resource
from frictionless.plugins.csv import CsvDialect
resource = Resource(data=[['id', 'name'], [1, 'english'], [2, 'german']])
resource.write('tmp/table.csv', dialect=CsvDialect(delimiter=';'))

References:

Last updated on by roll