Re: [Matplotlib-users] matplotlib-0.54 Win98 crash

[Gary R. <ga...@em...>]

Hi John,
I can confirm that 0.54.1a fixes the crashing problem - thanks!
However, I tested it with a few errorbar plots and I noticed a few things.
You've changed the errorbar bar-ends to use markers, but the scaling is now different and seems no longer to be settable via the capsize parameter.
The autoscaling no longer works either.

If I use the example:
--
from matplotlib.matlab import *

t = arange(0.1, 4, 0.1)
s = exp(-t)
e = 0.1*randn(len(s))
f = 0.1*randn(len(s))

l1 = errorbar(t, s, e, f)
set(l1, 'color', 'g')
show()
--

a traceback is generated:
Traceback (most recent call last):
  File "errorbar_demo.pyw", line 10, in ?
    set(l1, 'color', 'g')
  File "C:\APPS\PYTHON23\Lib\site-packages\matplotlib\matlab.py", line 1275, in set
    func = getattr(o,funcName)        
AttributeError: 'NoneType' object has no attribute 'set_color'

I'm pretty sure this worked in 0.53

If you change 
l1 = errorbar(t, s, e, f)
to
l1,l2 = errorbar(t, s, e, f)

you get another traceback:
Traceback (most recent call last):
  File "errorbar_demo.pyw", line 8, in ?
    l1,l2 = errorbar(t, s, e, f)
TypeError: unpack non-sequence

This worked in 0.53

If you remove the set() call, the plot appears, but you'll see the autoscaling is wonky.

I discovered these because I was trying to reproduce the plots on my python page <http://users.bigpond.net.au/gazzar/python.html>
When I try to reproduce the first one, I get a traceback. If I remove the l1,e1 assignment part and the legend call, no traceback occurs. I don't understand why:
The traceback produced is:

Traceback (most recent call last):
  File "_mass_matplotlib.py", line 17, in ?
    l1,e1=errorbar(m, PrimeVals(t), [NegErrs(t), PosErrs(t)], fmt='r')
TypeError: unpack non-sequence


When I try to reproduce the second plot, the plot window appears.
The scaling shown on my webpage is the autoscaling produced with 0.53 (xaxis=2->4.5, yaxis=5.?->5.32), but the autoscaling in 0.54.1a has the axis ranges of (xaxis=1->5.5, yaxis=4->6.5). Also I have to squint to see the bar-ends ;-)  <- (smiley of my left eye squinting)

regards and thanks for sorting out the GTKAgg stuff,
Gary

-- 
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