Get parameter by name

[Michael Hudson]

Oleg Broytmann <phd at phd.russ.ru> writes:

> Hello!
> 
>    I have a function with a long list of arguments:
> 
> def f(a1, a2, a3, b1, b2, b3, td, sd, si, ka, num=0, date=None):
>    ...body_here...
> 
> and I have a list of strings "a1, td, ka". How can I get the value of
> corresponding args? E.g., if I have
> 
>    x = "ka"
> 
> how can I get the value of parameter, the name of which is in x ("ka", in
> this case)?
> 
> Oleg.

locals() should do the trick:

def f(x):
    return locals()["x"]

Arguments are pretty much identical to local variables.

HTH,
Michael