Thank you very much. 👍

Just out of curiosity, could you show an example where one would link inside linked function? Sounds like yo-dawg trolling. :)

there's an example in the linked issue report on bitbucket. it probably doesn't make much sense normally to link within a linked function but sometimes things can have an unexpected side-effect that links something to the current greenthread, which is what happens in the given example: eventlet.green.threading.getcurrent links a cleanup function to the current greenthread the first time it's seen.

A copy of that code example is included below:

import eventlet
from eventlet import patcher

logging = patcher.import_patched('logging')
logging.basicConfig()
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)

def do_nothing():
    return

def log_exit(gt):
    logger.debug('exited!')

g = eventlet.spawn(do_nothing)
g.link(log_exit)
g.wait()

I think logging in a linked function is not an unexpected pattern. this results in:

RuntimeError: maximum recursion depth exceeded

Thanks, indeed this looks like a reasonable pattern.