[Python-Dev] Partial function application

[Terry Reedy]

On 9/11/2015 3:56 AM, Herbert Kruitbosch wrote:


> I was wondering if there are considerations for including partial
> function application syntactically. I very often find myself writing
> statements as:
> data_sorted = sort(data, key = lambda x: x[0])
> where I would prefer
> data_sorted = sort(data, key = #1[0])
> where the #1 is similar to the one used in Mathematica for the same
> purpose. That is, an expression with #1 becomes an anonymous function
> which takes one argument, and, obviously, if a #n is included, the
> anonymous function takes n arguments.

For future reference, ideas like this belong on the python-list or 
python-ideas list. Pydev is more for discussion of policy, concrete 
issues for the next releases, and approval ideas that have been fully 
fleshed out in the form of a PEP.

-- 
Terry Jan Reedy