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frictionlessdata/frictionless-py

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frictionless-py

Migrating from an older version? Please read **[v5](blog/2022/08-22-frictionless-framework-v5.html)** announcement and migration guide.

Data management framework for Python that provides functionality to describe, extract, validate, and transform tabular data (DEVT Framework). It supports a great deal of data sources and formats, as well as provides popular platforms integrations. The framework is powered by the lightweight yet comprehensive Frictionless Standards.

Purpose

  • Describe your data: You can infer, edit and save metadata of your data tables. It's a first step for ensuring data quality and usability. Frictionless metadata includes general information about your data like textual description, as well as, field types and other tabular data details.
  • Extract your data: You can read your data using a unified tabular interface. Data quality and consistency are guaranteed by a schema. Frictionless supports various file schemes like HTTP, FTP, and S3 and data formats like CSV, XLS, JSON, SQL, and others.
  • Validate your data: You can validate data tables, resources, and datasets. Frictionless generates a unified validation report, as well as supports a lot of options to customize the validation process.
  • Transform your data: You can clean, reshape, and transfer your data tables and datasets. Frictionless provides a pipeline capability and a lower-level interface to work with the data.

Features

  • Open Source (MIT)
  • Powerful Python framework
  • Convenient command-line interface
  • Low memory consumption for data of any size
  • Reasonable performance on big data
  • Support for compressed files
  • Custom checks and formats
  • Fully pluggable architecture
  • More than 1000+ tests

Installation

$ pip install frictionless

Example

$ frictionless validate data/invalid.csv
[invalid] data/invalid.csv

row field code message
----- ------- ---------------- --------------------------------------------
3 blank-header Header in field at position "3" is blank
4 duplicate-header Header "name" in field "4" is duplicated
2 3 missing-cell Row "2" has a missing cell in field "field3"
2 4 missing-cell Row "2" has a missing cell in field "name2"
3 3 missing-cell Row "3" has a missing cell in field "field3"
3 4 missing-cell Row "3" has a missing cell in field "name2"
4 blank-row Row "4" is completely blank
5 5 extra-cell Row "5" has an extra value in field "5"

Documentation

Please visit our documentation portal:

About

Data management framework for Python that provides functionality to describe, extract, validate, and transform tabular data

Resources

Readme

License

MIT license

Code of conduct

Code of conduct

Contributing

Contributing

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