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'