Catch StopIteration raised by generator

[mamciek]

When running on python 3.7+ then generator raises StopIteration exception

  Traceback (most recent call last):
    File "[..]/lib/python3.7/site-packages/snakebite/client.py", line 1549, in wrapped
      yield next(results)
  StopIteration

This expected according to https://docs.python.org/3/whatsnew/3.7.html#changes-in-python-behavior

PEP 479 is enabled for all code in Python 3.7, meaning that StopIteration exceptions raised directly or indirectly in coroutines and generators are transformed into RuntimeError exceptions. 

[elukey]

Hi @mamciek ! I can't test the client on Python 3.7 now, but I should be able to do it soon. In the meantime, can you please add the full stacktrace that you get? I am not familiar with the code of client.py so I'd like to make sure to understand what _ha_gen_method does exactly.

@nlevitt you have more experience so if the patch looks trivial/ok-to-merge it might be a good candidate for a new minor version of snakebite?

[gloutsch]

can you make a minor version to support python >= 3.7 please ? 😄

snakebite-py3==3.0.5

here is the stacktrace :

>>> [d['path'] for d in client.ls(['/'])]
Traceback (most recent call last):
  File "/opt/test/lib/python3.8/site-packages/snakebite/client.py", line 1549, in wrapped
    yield next(results)
StopIteration

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <listcomp>
RuntimeError: generator raised StopIteration

[elukey]

@nlevitt hi! This is probably a good use case for a quick release if you have time during the next days :)

[pieterbork]

Any chance that this will get merged and released in the near future?