Warren Stringer wrote:
> Am still trying to hook a NameError exception and continue to run. After a
> few more hours of searching the web and pouring over Martelli's book, the
> closest I've come is:
[snip]
> Is there a way of intervening as `exec cmd in globals, locals` attempts to
> translate 'c' into an object? I thought that trapping a NameError might
> work. But now, I'm not so sure.
You can always muck around with the function's globals (if the operation
is happening inside some function...)
>>> def foo():
... print a
...
>>> d = {'a':1}
>>>
>>> foo = type(foo)(foo.func_code, d, foo.func_name, foo.func_defaults,
foo.func_closure)
>>> a
Traceback (most recent call last):
File "<stdin>", line 1, in ?
NameError: name 'a' is not defined
>>> foo()
1
>>>
With a little work, you can 'merge' your namespace-like object with the
module globals that normally exist for a function.
However, I would say again, you shouldn't be doing this kind of thing in
production code.
- Josiah
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