2022-07-17 01:51:31 UTC - Matt Welke: Does the Python runtime support
async/await syntax via asyncio? I made a Python 3.10 version of the runtime,
based on code in the repo openwhisk-runtime-python. I deployed an action based
on it and it works fine if I use `def main(args):` in my action:
```{
"greeting": "Hello stranger! 1 + 2 = 3. Here's a joke: An SEO expert walks
into a bar, bars, pub, public house, Irish pub, tavern, bartender, beer,
liquor, wine, alcohol, spirits...",
"python_version": "3.10.5 (main, Jul 12 2022, 11:43:42) [GCC 8.3.0]"
}```
But doesn't work if I use `async def main(args):` (and I have `import asyncio`
at the top of the file):
```{
"code": "d7cf54b866121a2b5937a184bfae2640",
"error": "There was an error processing your request."
}```
I also get a more detailed error message in the IBM Cloud Function logs:
```
Logs:
[
"2022-07-17T01:46:57.046798Z stderr: Traceback (most recent call last):",
"2022-07-17T01:46:57.046882Z stderr: File \"/action/1/bin/exec__.py\",
line 69, in <module>",
"2022-07-17T01:46:57.046889Z stderr: out.write(json.dumps(res,
ensure_ascii=False).encode('utf-8'))",
"2022-07-17T01:46:57.046893Z stderr: File
\"/usr/local/lib/python3.10/json/__init__.py\", line 238, in dumps",
"2022-07-17T01:46:57.046897Z stderr: **kw).encode(obj)",
"2022-07-17T01:46:57.046901Z stderr: File
\"/usr/local/lib/python3.10/json/encoder.py\", line 199, in encode",
"2022-07-17T01:46:57.046904Z stderr: chunks = self.iterencode(o,
_one_shot=True)",
"2022-07-17T01:46:57.046908Z stderr: File
\"/usr/local/lib/python3.10/json/encoder.py\", line 257, in iterencode",
"2022-07-17T01:46:57.046912Z stderr: return _iterencode(o, 0)",
"2022-07-17T01:46:57.046916Z stderr: File
\"/usr/local/lib/python3.10/json/encoder.py\", line 179, in default",
"2022-07-17T01:46:57.046919Z stderr: raise TypeError(f'Object of type
{o.__class__.__name__} '",
"2022-07-17T01:46:57.046923Z stderr: TypeError: Object of type coroutine
is not JSON serializable",
"2022-07-17T01:46:57.049569Z stderr: sys:1: RuntimeWarning: coroutine
'main' was never awaited",
"2022-07-17T01:46:57.059Z stderr: The action did not initialize or run
as expected. Log data might be missing."
]```
https://openwhisk-team.slack.com/archives/C3TPCAQG1/p1658022691139179
----
