23 Nov
2017
23 Nov
'17
1:30 p.m.
On Thu, 23 Nov 2017 14:17:32 +0200
Serhiy Storchaka
I used the "yield" statement, but I never used the "yield" expressions. And I can't found examples. Could you please present a real-world use case for the "yield" (not "yield from") expression?
Of course I can. "yield" expressions are important for writing Python 2-compatible asynchronous code while avoiding callback hell: See e.g. http://www.tornadoweb.org/en/stable/gen.html or https://jdb.github.io/concurrent/smartpython.html There are tons of real-world code written using this scheme (as opposed to almost no real-world code, even Python 2-only, using "yield" in comprehensions or generation expressions). Regards Antoine.