Stephen Vavasis <vavasis <at> cpu111.math.uwaterloo.ca> writes:
> > If x is a C variable of type PyObject*, and I happen to know already that > the object is of a numeric type, say int, is there a way to change the > value of x in place to a different number? In the C/API documentation I > found routines to increment or decrement it in place, but I didn't find a > routine to simply replace its value by a different value. (I suppose I > could change it to the new value via an increment or decrement, but this > is ugly as well as being susceptible to overflow problems and roundoff > errors in the case of floats.) Even in the C-API, Python ints and longs are immutable. You can convert it to a C int and work with it, otherwise you have to use the APIs which create new objects: PyNumber_Add etc... -- http://mail.python.org/mailman/listinfo/python-list
