Andrew Koenig wrote:
I am not advocating this, but this could be:
def abs(self):
with self:
with math:
return sqrt(x**2 + y**2 + z**2)
The idea being that "with self" use
creates a new namespace:
newGlobal= oldGlobal + oldLocal
newLocal= names from self
You don't know what those names are until runtime. Suppose, for example,
that self happens to have acquired an attribute named "math"? Then
with self:
with math:
return sqrt(x**2 + y**2 + z**2)
doesn't do what you expected, because "with math" turns out to have meant
"with self.math"
You are right, they rules of the game need to be set out more clearly.
I had envisaged that the new and newer above would be executed at
runtime.
To take your example:
with self:
with math:
return self.math(x**2 + y**2 + z**2)
or:
with math:
with self:
return math(x**2 + y**2 + z**2)
Would appear to do it. The important thing is that math and self are
available in the global namespace.
Colin W.
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