Busbud Coding Challenge

Requirements

Create a web page that shows a map to visualiaze coverage of the most populated cities in the world

• The page is served by a Python webserver
• Use D3.js (or similar tool) to display the world map
• Use /data/cities15000.txt to get the list of cities with population > 15000 (see http://download.geonames.org/export/dump/readme.txt for more information)
• Use /data/target_cities.json to get the list of covered cities by geoname_id.
• Clicking on a country on the map should display the number of cities with population > 15000 in that country and the fraction covered by target list. For example, if there are 100 cities in the US in cities15000.txt and 15 of those cities are in the target list, clicking on the US on the map should display 15 / 100 = 15%.
• the app should be deployed on heroku

Non-functional

• the code should be written in Javascript and Python (Python 2.7 compatible).
• any packages required must be installable via pip install -r requirements.txt, see pip
• Work should be submitted as a pull-request to this repo