I do lots of data analyses in the command-line and I was missing a simple utility to plot the output of a command (without having to script it). I like very much the Matplotlib API but I found no CLI to pipe data into it. So, I wrote MatplotCLI, a simple CLI that reads data from the stdin and allows to easily create interactive plots from the command-line. Have a look at the README for examples and recipes. Let me know what you think, thanks!Some examples:
$ plt "hist(x,30)" < sample.json
$ cat sample.json | plt --no-show "hist(x,30); savefig('myimage.png')"
$ plt --no-input "
x = np.linspace(-1,1,2000);
y = x*np.sin(1/x);
plot(x,y);
axis('scaled');
grid(True)"
$ echo '
{"a":0, "b":1}
{"a":1, "b":0}
{"a":3, "b":3}' |
plt "plot(a,b)"