matplotlib Code

fix the web page archive link to point to sf rather than nabble

fix the web page archive link to point to sf rather than nabble

[3010045] leading whitespace removed from text

alpha is left as None until you really want to specify it; closes 2957321.

I think this, together with some other recent commits, fixes various
longstanding problems in the way alpha has been handled. The default
value is left as None, and with this value, existing alpha specified
in RGBA sequences will not be overridden. Substitution of the default
value of 1 for a value of None is delayed until the GraphicsContextBase
set_alpha method is executed.

axes: quick fix to make fill_between_demo work again

api_changes.rst: updated for Axes methods added in April

Axes.bar: added error_kw kwarg

errorbar_demo: fewer figures, better style

handle is None keys by returning

Make pcolormesh() and QuadMesh take/forward on kwargs as appropriate. This fixes (at least) zorder for pcolormesh.