How safe is modifying locals()?
Corey Coughlin
corey.coughlin at attbi.com
Mon Jul 28 17:57:51 EDT 2003
Interesting thread here, I'm enjoying reading this. Of course, I know
next to nothing about Visual Basic, so I don't know if I can really
help all that much. But it doesn't sound like implementing something
like pointers is that much trouble, just a matter of getting some
syntax you like. Now if you were translating C into Python, I suspect
you might need a more complicated pointer model. I mean, half the use
of pointers in C is to iterate down simple arrays, like strings, so
you'd have to make something more like this:
class CStack(object):
def __init__():
self.stack = []
self.names = {}
def malloc(sizeinbytes, object_name):
self.names[object_name] = len(self.stack)
for i in range(sizeinbytes):
self.stack.append(0)
def pobj(pointer_index):
return self.stack[pointer_index]
def paddr(object_name):
return self.names[object_name]
or something like that, obviously this isn't fleshed out, but given
the breathtakingly simple memory model of C, it should be a snap to
code up in Python. Hmmm.... I wonder if the Python-In-Python people
are trying anything like this to convert the C library code for
CPython. Or would it even be worth it? I think I'll meditate on
that......
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