extract method with generators
cs at zip.com.au
Fri Oct 15 05:45:35 CEST 2010
On 14Oct2010 20:11, Steve Howell <showell30 at yahoo.com> wrote:
| Is there a way to extract code out of a generator function f() into
| g() and be able to have f() yield g()'s result without this idiom?:
| for g_result in g():
| yield g_result
| It feels like a clumsy hindrance to refactoring, to have to introduce
| a local variable and a loop.
This sounds like the "yield from" proposal that had discussion some
months ago. Your above idiom would become:
yield from g()
See PEP 380:
Short answer, not available yet.
A Google search on:
python pep "yield from"
found some implementations at activestate, such as this:
which lets you decorate an existing generator so that you can write:
where gen() is the decorated generator.
Cameron Simpson <cs at zip.com.au> DoD#743
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