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Field Guide

Field is a lower level object that helps describe and convert tabular data.

Creating Field#

Let's create a field:

Python
from frictionless import Field
field = Field(name='name', type='integer')

Usually we work with fields which were already created by a schema:

Python
from frictionless import describe
resource = describe('data/table.csv')
field = resource.schema.get_field('id')

Field Types#

Frictionless Framework supports all the Table Schema Spec field types along with an ability to create custom types.

For some types there are additional properties available:

Python
from frictionless import describe
resource = describe('data/table.csv')
field = resource.schema.get_field('id') # it's an integer
field.bare_number

Reading Cell#

During the process of data reading a schema uses a field internally. If needed a user can convert their data using this interface:

Python
from frictionless import Field
field = Field(name='name', type='integer')
field.read_cell('3') # 3

Writing Cell#

During the process of data writing a schema uses a field internally. The same as with reasing a user can convert their data using this interface:

Python
from frictionless import Field
field = Field(name='name', type='integer')
field.write_cell(3) # '3'
Last updated on by roll