RE: [Matplotlib-users] 3d plot examples

[Ted D. <ted...@jp...>]

FYI: I believe the best way to check for None is to use:

if Z is None

or

if Z is not None

This eliminates the possibility of Z implementing the __cmp__ method which 
would get called if you use "if Z == None".  I only know this after wasting 
several hours trying to figure out why some code that looked perfectly 
reasonable wouldn't work after I adding a comparison method...

Ted

At 08:44 AM 2/14/2006, J.B...@if... wrote:
>Hello again,
>
>in mplot3d.py I changed line 729:
>
>- if Z:
>+if Z==None:
>
>Could this work too??? 'Python mplot3d.py' seems to work then but 'python
>surface.py' fails with:
>
>jens-ifw@x21lx-jensb:/media/exchange/Python/3d> python surface.py
>Traceback (most recent call last):
>   File "surface.py", line 16, in ?
>     ax = mplot3d.Axes3D(fig, axisbg='k')
>AttributeError: 'module' object has no attribute 'Axes3D'
>
>Cheers
>
>Jens
>
>
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