Re: [Matplotlib-users] Problems with sans-serif fonts and tick labels with TeX

>
> The solution I use when I want all sans-serif out of TeX is to use the cmbright package, which can be turned on by adding:
>
> rc('text.latex', preamble=r'\usepackage{cmbright}')
>
> That may require installing the cmbright LaTeX package if you don't already have it.

I am using the sfmath package for this purpose.

There is a nice comparision of the different approaches to get sans-serif math fonts at the bottom of the sfmath page: 
http://dtrx.de/od/tex/sfmath.html