In addition, I would very much like to see it used for certain types of validation, as shown above. Jacob‘s working on model validation at the moment, but I expect that’ll only be useful on models you control. In particular, I’m thinking about Djang

Creating and handling forms can be a complicated process! Django makes it much easier by providing programmatic mechanisms to declare, render, and validate forms. Furthermore, Django provides generic form editing views that can do almost all the work to d

For example, a[i] += f(x) first looks-up a[i], then it evaluates f(x) and performs the addition, and lastly, it writes the result back to a[i]. With the exception of assigning to tuples and multiple targets in a single statement, the assignment done by au