#4330: interfaces function_call(...) function is a total MESS
------------------------+---------------------------------------------------
Reporter: was | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-3.2
Component: interfaces | Keywords:
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I just noticed that the functional_call function in the interfaces
directory (defined in various files) is a bug-ridden mess.
For example
{{{
sage: a = mathematica('N[BesselK[1+I, 2+ 3*I], 20]')
sage: a.Re()
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/home/was/build/sage-3.1.3.alpha3/<ipython console> in <module>()
/home/was/build/sage-3.1.3.alpha3/local/lib/python2.5/site-
packages/sage/interfaces/expect.pyc in __call__(self, *args, **kwds)
1241
1242 def __call__(self, *args, **kwds):
-> 1243 return self._obj.parent().function_call(self._name,
[self._obj] + list(args), kwds)
1244
1245 def help(self):
TypeError: function_call() takes at most 3 arguments (4 given)
sage:
}}}
Also, I noticed that in expect.py the definition of function_call is:
{{{
def function_call(self, function, args=[], kwds={}):
}}}
This is the typical stupid Python newbiew mistake (of course I'm the
newbie that is to blame here...), which leads to massive subtle bugs.
Things are done right in function_call in r.py, and that pattern should be
used everywhere else.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4330>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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