How to pass a reference to the current module

[Steven D'Aprano]

On Fri, 03 Aug 2007 18:45:21 -0700, Paul Rubin wrote:

> Steven D'Aprano <steve at REMOVE.THIS.cybersource.com.au> writes:
>>         namespace = module.__dict__
>>     return namespace[name]
> 
> Am I missing something?  It's likely that I just don't understand
> the problem, but I don't understand these dictionary extractions
> for what I thought would be an attribute lookup:

Well, the *real* reason I used a __dict__ extraction was because I didn't
think of using getattr at the time, but as a post facto justification,
I'll point at the difficulty in using getattr for extracting a function
from the current module:

>>> def f(x):
...     return x + 1
... 
>>> func = getattr(???, 'f') # what should go there?


Maybe I've just got a blind spot, but I can't think of a way to use
getattr to get something from the current module. That would lead to
something like this:


def get_function_from_name(name, module=None):
    if module is None:
        return globals()[name] # or use locals()
    else: 
        return getattr(name, module)

which is fine, I suppose, and I would have used it earlier if I had
thought of it *wink*


-- 
Steven.