[Matplotlib-users] How has dates and autoscaling changed from 0.91.2 to 0.98.5.2

[Joshua J. K. <jo...@ee...>]

So, my code has been running without flaw for quite some time now, and 
thanks to the help of some folks here a few months back, I'm learning 
more about matplotlib.  But today I hit a wall.

Under matplotlib 0.91.2/Py2.5, I'm getting this graph:
http://joshuakugler.com/images/good_graph.png

Very nice, that's what I want!

But when I started running under matplotlib 0.98.5.2/Py2.6, I started 
getting this:

http://joshuakugler.com/images/bad_scale.png

Not happy.  I finally realized that autoscaling was enable for the 
secondary y axis (right side), even though it's explicitly turned off 
for the primar y axis (left side).  So, I turn autoscaling off for the 
secondary axis and got this:

http://joshuakugler.com/images/bad_noscale.png

Better (proper range) but I have numbers instead of dates.

No, I haven't assembled a minimal test case (this is quite a complex 
system, I spent several hours on this thinking I had broken my code 
until it occurred to me to run it on an old Py2.5/mpl 0.91.2 setup), 
and no I haven't trolled the changelogs to see what change in behavior 
I might have hit, but I was wondering if anyone any ideas of what I 
need to be checking off the top of their heads.

I can tell you: the problem only occurrs on graphs that have a secondary 
y axis, as you can see, the humidity graph is just fine.

Ideas? Sections of the manual I need to read?

I'm frustrated and burnt out from trying to figure this out, so I'm done 
for the night...hopefully I'll have fresh insights and/or ideas come 
morning.

j

P.S. Oh, and there is also a nice traceback I'm getting on other graphs 
that seems to be related to this glitch, but I'll wait until I have the 
first glitch fixed as the second glitch may get fixed in the process.

-- 
Joshua Kugler
Part-Time System Admin/Programmer
http://www.eeinternet.com
PGP Key: http://pgp.mit.edu/  ID 0xDB26D7CE