hipsterplot
because matplotlib is too mainstream (or you broke it like I did). Also good while debugging numerical code.
A python script for command line plotting.
pip install hipsterplot is all you need.
Can plot a list of y values [ys] which works for evenly spaced points, or pairs of lists ([xs], [ys]) which works for heterogeneous x-spacing, or disorder in the x's (scatterplots).
In a given 'pixel', the plotted character depends how many data points map to it, so it can look good on densities.
for example:
also looks good on noisy data and plots of non-functions:
More examples in the main function of hipsterplot.py.