[Question] - SyntaxError when using Python, boto3 and s3

[maoo]

Apologies in advance if this is not the right place to open this issue, I don't have an extensive experience with aws-sam-local or Python, so I may be missing something really stupid.

I have a problem with my simple sam function; assuming that test.py and template.yaml are in the current folder, the issue can be reproduced by simply running echo '{}' | sam local invoke Test.

The error I get is SyntaxError: invalid syntax on line client = boto3.client('s3') - full history on https://gist.github.com/maoo/2175a1c4b75a80c7271943591afb4920#file-error-log

The interesting part is that running the same function without sam, everything works; assuming that test.py and template.yaml are in the current folder, you can test the following command...

pip install boto3 -t .
python -c 'from test import test1; test1(None,None)'

... which expects to return an error saying The specified key does not exist.

[rafaharo]

Seems that your test scripts is not using standard spaces as separator (you have probably used the tab within a text editor and not a proper Python IDE). Not sure, but could be that taking quick a look at the raw file

[maoo]

Thanks @rafaharo , I've tried to use spaces across the test.py file, but got the same result; I suppose that - if it was an indentation issue - also the python -c command would fail.

[maoo]

Fixed the issue by using python2.7 as Runtime in template.yaml (see https://gist.github.com/maoo/2175a1c4b75a80c7271943591afb4920#file-template-yaml-L10)

I'll close the issue here and post it to https://github.com/boto/boto3