Added AWS Lambda Python 3.9 runtime support

[razumeiko]

AWS changed bootstrap location in Python 3.9 runtime.
Tested on next runtimes: 3.7, 3.8, 3.9
Issue: #1170

[ahmedetefy]

Hey @razumeiko
Thanks for the PR, can you add some test that verifies that behaviour?

[aahung]

@razumeiko Any plan to push forward this PR?

[aahung]

I tried to use this PR code, but unhandled exceptions are not captured.

[razumeiko]

I'll try to write tests in the next couple of days. @aahung can you clarify please what exceptions are you faced with?

[razumeiko]

I was going to write some tests but when i run tests locally on clean repo i have weird errors
..F..........FFs..........F...............F........e.....FFFF

3.8 Runtime
tests/integrations/aws_lambda/test_aws.py:177: in test_basic
E ValueError: not enough values to unpack (expected 1, got 0)

3.7 Runtime
tests/integrations/aws_lambda/test_aws.py:299: in test_init_error
(event,) = events
E ValueError: too many values to unpack (expected 1)

E subprocess.CalledProcessError: Command '['pip', 'install', '--no-cache-dir', '-q', 'dist/sentry_sdk-1.3.1-py2.py3-none-any.whl', '-t', '/var/folders/yd/mnqmxwr9211bqxc60qtbvgzc0000gn/T/tmp4eb2v42d/python']' returned non-zero exit status 1.

test_non_dict_event[python3.8-"Good dog!"-False-1]
tests/integrations/aws_lambda/test_aws.py:486: in test_non_dict_event
envelope = envelopes[0]
E IndexError: list index out of range

And so on.
I spend a couple of hours trying to play with local python version checking test code but unfortunately no luck. And this is on clean sentry without my changes. If someone knows what's the problem, let me know, i can't really work on tests without running it locally.

[razumeiko]

I added runtime 3.9 to tests and fixed a small bug in the code. I am not sure if tests will pass but let's try it.

[iker-barriocanal]

The runtime should also be added as a compatible runtime in the Craft config, see https://github.com/getsentry/sentry-python/blob/master/.craft.yml#L13.

[tomscytale]

I attempted to open a pr against razumeiko:master to fix the lint issue, but accidentally created a new PR here - #1239

May as well leave it open - razumeiko doesn't appear to be active recently.

[AbhiPrasad]

Closing as #1239 was merged.