Python 3 clone of Zach Holman's BASH sparkline project

Takes series data via stdin, command line, or API and prints a sparkline representation.

Usage:

• $ sparkline 4 3 2 1

█▆▃▁

• $ echo "1.0 1.0 2.0 3.0 5.0 8.0 13.0" | sparkline

▁▁▂▂▃▅█

• $ seq 20 | sort -R | sparkline -r2

▃▁ █▂    ▂▆▅  ▄▇▆   
██▃██▅▇▄▁███▃▇███▂█▆

• $ python3 -c "import sparkline; print(sparkline.sparkify([1.0, 2.0, 3.0, 4.0]))"

▁▃▆█

• $ python3 -c "import math, sparkline; print(sparkline.sparkify([math.cos(n/10.0) for n in range(-50, 50, 2)], rows=4))"

                    ▁▃▅▇███▇▅▃▁                   
▅▂                ▃▆███████████▆▃                ▂
██▇▄▁          ▂▅█████████████████▅▂          ▁▄▇█
█████▆▄▃▁▁▁▂▃▅▇█████████████████████▇▅▃▂▁▁▁▃▄▆████