D3: Pie Chart: d3.arc(), d3.pie()

Forked script below was adapted to D3.js v4 from v3

D3.js SVG Arc Pie Chart

• d3.pie() v4 generator creates an array of arc specifications. Replacing v3’s d3.layout.pie().
• d3.arc() v4 object replaces v3’s d3.svg.arc().
• .attrs({}) v4 method contains multiple attribute tuples. Replacing v3’s .attr({}).

Forked v4 script above. Original v3 script below.

D3.js 3.5.17 seems to have an existence similar to Python 2.7.14. Maintained to avoid alienating v3 users.