ea5eba5916
As noted in #600, Python 3 allows a return inside a generator method, that raises a StopIteration and passes the return value inside the 'value' attr of the exception. To allow this behaviour we simple set 'contains_yield' while compiling 'yield', thus allowing a return statement, but only for Python 3. Then when compiling the try-except, we check for contains_yield to decide whether there will be a return. This allows code like: (defn gen [] (yield 3) "goodbye") to compile in both Py2 and Py3. The return value is simply ignored in Python 2. hy2py in Python 2 gives: def g(): yield 3L u'goodbye' while hy2py in Python 3 gives: def g(): yield 3 return 'goodbye' Turns out return in yield started in Python 3.3
Hy
Lisp and Python should love each other. Let's make it happen. Try it.
Hylarious Hacks
OK, so, why?
Well. Python is awesome. So awesome, that we have so many tools to alter the language in a core way, but we never use them.
Why?
Well, I wrote Hy to help people realize one thing about Python:
It's really awesome.
Oh, and lisps are neat.
(fan art from the one and only doctormo)
Project
- Code: https://github.com/hylang/hy
- Docs: http://hylang.org/
- Quickstart: http://hylang.org/en/latest/quickstart.html
- Bug reports: We have no bugs! Your bugs are your own! (https://github.com/hylang/hy/issues)
- License: MIT (Expat)