On two different computers running Ubuntu 9.04, I downloaded and built
from source sage 3.4.1. I also downloaded scipy using the synaptic
package manager. I am under the impression that python and scipy in
sage lead completely separate lives from python and scipy outside
sage. In normal python (i.e. running python from the command line),
the following works fine:
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41)
[GCC 4.3.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import scipy.stats
>>> scipy.stats.poisson.pmf(5,1)
0.00306566200976202
But when I run sage, I get the following:
----------------------------------------------------------------------
| Sage Version 3.4.1, Release Date: 2009-04-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: import scipy.stats
sage: scipy.stats.poisson.pmf(5,1)
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/home/awalker/sage-3.4.1/<ipython console> in <module>()
/home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/
distributions.pyc in pmf(self, k, *args, **kwds)
3517 output = zeros(shape(cond),'d')
3518 place(output,(1-cond0)*(cond1==cond1),self.badvalue)
-> 3519 goodargs = argsreduce(cond, *((k,)+args))
3520 place(output,cond,self._pmf(*goodargs))
3521 return output
/home/awalker/sage-3.4.1/local/lib/python2.5/site-packages/scipy/stats/
distributions.pyc in argsreduce(cond, *args)
237 # make sure newarr is not a scalar
238 newarr = atleast_1d(args[k])
--> 239 newargs[k] = extract(cond,newarr*expand_arr)
240 return newargs
241
TypeError: unsupported operand type(s) for *: 'numpy.ndarray' and
'numpy.bool_'
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