catching exceptions in expressions

[Terry Reedy]

"Andrew Dalke" <adalke at mindspring.com> wrote in message
news:bgua9j$oll$1 at slb4.atl.mindspring.net...
> When list comprehensions came out, one of the things I found
> I liked about it was it replaced a lot of code like
>
> new_data = []
> for x in data:
>     new_data.append(x.attr)
> data = new_data

Isn't this the same as

data = map(lambda d: d.attr, data)

?

> I tried to abstract that into a function, like
>
> def get_list_attr(data, attrname):
>   new_data = []
>   ...
>
> but could never come up with a good name for that function.

mapattr?

Terry J. Reedy