[Matplotlib-users] What is a autopct format function?

[mgurling <mag...@gm...>]

I called plt.pie with autopct='%1.1f%%' and got the labels I wanted. However,
when I added the line

mpl.rcParams['text.usetex'] = True

the % disappeared from my labels. I'd like to be able to use LaTex for text,
but can't figure out how to get the % back on my labels.

I've read the documentation for autopct


> autopct: [ None | format string | format function ]
>     If not None, is a string or function used to label the wedges with
> their numeric value. The label will be placed inside the wedge. If it is a
> format string, the label will be fmt%pct. If it is a function, it will be
> called.

and I am wondering what a format function would look like. All of the
examples using autopct that I can find use a format string similar to
%1.1f%% and none seem to use functions.

So my questions are:

1) How might I get the % back on my labels (whether this requires a format
function or not)?
2) What would a format function look like when used with autopct?



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