Well, if I can cast a vote, it would make a lot of sense if pylab functions
do the same thing as numpy functions. Right now it is exceedingly confusing
when I teach, that zeros() could be integers or floats. An rc parameter
where we would import straight from numpy would be most excellent. Can't
wait!
Thanks for the explanations,
Mark
On 4/24/07, Eric Firing <[EMAIL PROTECTED]> wrote:
Gary Ruben wrote:
> Hi Mark,
> this thread may help:
>
http://thread.gmane.org/gmane.comp.python.numeric.general/13399/focus=13421
>
> Essentially, pylab uses a compatibility layer to ease the task of
> supporting the three array packages - currently this uses the Numeric
> version of the ones and zeros functions giving the behaviour you observe
> - this will be fixed when pylab drops support for the older packages,
> which should be soon.
What we will do is drop the use of numerix internally, but the numerix
module will almost certainly remain, presumably with the Numeric and
numarray support removed; so numerix will still use numpy's own
"oldnumeric" compatibility layer, and I expect pylab will still import
from it--at least, by default. The intention is to avoid breaking
things unnecessarily. I can imagine possible variations, such as using
an rc param to tell pylab whether to import from plain numpy or from
oldnumeric, and splitting pylab into core pylab functions (figure, show,
etc.) versus the convenience all-in-one namespace (mostly from numpy);
but we will take one step at a time.
Eric
>
> Gary R.
>
> Mark Bakker wrote:
>> Hello list -
>>
>> I am confused about the part of numpy that pylab imports.
>> Apparently, pylab imports 'zeros', but not the 'zeros' from numpy, as
it
>> returns integers by default, rather than floats.
>> The same holds for 'ones' and 'empty'.
>> Example:
>> >>> from pylab import *
>> >>> zeros(3)
>> array([0, 0, 0])
>> >>> from numpy import *
>> >>> zeros(3)
>> array([ 0., 0., 0.])
>>
>> Can this be fixed? Any explanation how this happens? Pylab just imports
>> part of numpy, doesn't it?
>>
>> Thanks,
>>
>> Mark
>
>
>
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