databuild 0.0.9

a build tool for data

make for your data.

An automation tool for data manipulation.

Inspired by Open Refine.

The general principles in Databuild are:

• Low entry barrier

• Easy to install

• Easy to grasp

• Extensible

Databuild can be useful for scenarios such as:

• Documenting data transformations in your infoviz project

• Automate data processing in a declarative way

Installation

Install databuild:

$ pip install databuild

Quickstart

For more details, see the Extended Documentation.

$ data-build.py buildfile.json

buildfile.yaml contains a list of operations to be performed on data. Think of it as a script for a spreadsheet.

An example of build file could be:

- operation: sheets.import_data
  description: Importing data from csv file
  params:
    sheet: dataset1
    format: csv
    filename: dataset1.csv
    skip_last_lines: 1
- operation: columns.add_column
  description: Calculate the gender ratio
  params:
    sheet: dataset1
    name: Gender Ratio
    expression:
      language: python
      content: "return float(row['Totale Maschi']) / float(row['Totale Femmine'])"
- operation: sheets.export_data
  description: save the data
  params:
    sheet: dataset1
    format: csv
    filename: dataset2.csv

JSON buildfiles are also supported. databuild will guess the type based on the extension.

License

Licensed under BSD 3-clauses.