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World Bank Data API in Python

Project description

The World Bank Data in Python

Build Status codecov.io Language grade: Python Pypi pyversions Jupyter Notebook JupyterLab

This is an implementation of the World Bank API v2 in Python. Use this package to explore the World Development Indicators published by the World Bank.

Quick tutorial

Installation

Install or update the World Bank Data python package with

pip install world_bank_data --upgrade

Get the list of sources, topics, countries, regions

import pandas as pd
import world_bank_data as wb
pd.set_option('display.max_rows', 6)

The list of topics is available with

wb.get_topics()

Sources are returned by

wb.get_sources()

And finally, the list of countries is accessible with

wb.get_countries()

In addition, give a try to

  • get_regions
  • get_incomelevels
  • get_lendingtypes

to retrieve more information about country classifiers.

Get the list of indicators

This is done with the get_indicators function. You may query only the indicators for a specific source or topic as below. If you input no arguments, the get_indicator function will return the description of all the 16,000+ indicators.

wb.get_indicators(topic=3, source=2)  # topic and source id are from get_topics/get_sources

Requesting all indicators may take a few seconds, but no worries, the result is cached, so next time this will be instantaneous.

Searching for one country or indicator

Use the functions search_countries, search_source, search_indicators. Or, if you want to search in a existing dataframe, simply use search.

wb.search_indicators('mathematics')

Get the values of an indicator

The function get_series returns the value of a single indicator. The World Bank API accepts quite a few arguments, including:

  • mrv, integer: one or more most recent values
  • date, string: either one year, or two years separated with a colon, like '2010:2018'
  • gapfill, string: 'Y' or 'N' (the default): forward fills missing values.

For instance, the call below returns the most recent estimate for the World Population:

wb.get_series('SP.POP.TOTL', mrv=1)

The result above has a 3-dimensional index. Use the argument simplify_index to ignore the dimensions that take a single value (here: year and series). Also, use the argument id_or_value='id' if you prefer your data to be indexed by the codes rather than labels:

wb.get_series('SP.POP.TOTL', date='2016', id_or_value='id', simplify_index=True)

Ready for an interative tutorial?

Go to our Binder and run either this README, or our other tutorial with the code required to produce this plot of the World Population:

World Population 2017

References

The World Bank

The World Bank has a Data Catalog, and an interactive data explorer.

Third party applications that allow to access the data from various languages are listed here.

Google's Public Data Explorer

The World Bank data is also available in Google's Data Explorer.

Python

Alternatively to world_bank_data, Python users may find useful the following packages:

The reason for which I wrote world_bank_data is mostly speed, e.g. I wanted to use the lastest version of the World Bank API (v2) and benefit from significant speed improvements. Reimplementing the API also gave me a finer control on the mapping of options.

R

R users can use two packages to access the World Bank data:

See also the Introduction to the wbstats R-package, or this quick review of the two packages.

FAQ

Country and indicator description in non-English languages

The World Bank describes their sources and indicators in other languages than English. Use either the language argument in each of get_countries, get_indicators, etc, or change the default globally:

wb.options.language = 'vi'
wb.get_indicators('SP.POP.TOTL')
wb.options.language = 'en'

Caching

All requests, except get_series, are cached using a least recently used cache from the cachetools package.

Using behind a proxy

Using the package behind an http proxy is possible. Use either the proxies argument in the get_* functins, or set the proxy globally with e.g.:

wb.options.proxies = {'http': 'http://example.com:3128'}

License

This python package is licenced under the MIT License.

Please also read the World Bank Terms of Use relative to the conditions that apply to the data downloaded with this package.

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