Bug: When running sam deploy in github ci/cd, got error Unable to export., TypeError: sequence item 0: expected str instance, bytes found

[jf001z4084]

Description:

Our github CI/CD pipeline running sam deploy command in ubuntu environment to deploy our lambda function, we found the it failed and report error: Unable to export.

Observed result:

2024-01-31 17:23:33,745 | Sam customer defined id is more priority than other IDs. Customer defined id for resource AuthFunction is AuthFunction
2024-01-31 17:23:36,377 | Unable to export
Traceback (most recent call last):
  File "/home/linuxbrew/.linuxbrew/opt/cfn-lint/libexec/lib/python3.12/site-packages/botocore/httpsession.py", line 464, in send
    urllib_response = conn.urlopen(
                      ^^^^^^^^^^^^^
  File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/connectionpool.py", line 793, in urlopen
    response = self._make_request(
               ^^^^^^^^^^^^^^^^^^^
  File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/connectionpool.py", line 496, in _make_request
    conn.request(
  File "/home/linuxbrew/.linuxbrew/opt/cfn-lint/libexec/lib/python3.12/site-packages/botocore/awsrequest.py", line 91, in request
    if headers.get('Expect', b'') == b'100-continue':
       ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen _collections_abc>", line 807, in get
  File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/_collections.py", line 261, in __getitem__
    return ", ".join(val[1:])
           ^^^^^^^^^^^^^^^^^^
TypeError: sequence item 0: expected str instance, bytes found

Expected result:

We expect the lambda function could be deployed successfully.

Additional environment details (Ex: Windows, Mac, Amazon Linux etc)

1. OS: ubuntu
2. sam --version: 1.108
3. AWS region: us-west-2

# Paste the output of `sam --info` here

Unable to export

`Add --debug flag to command you are running`

File "/home/linuxbrew/.linuxbrew/opt/cfn-lint/libexec/lib/python3.12/site-packages/botocore/httpsession.py", line 464, in send
urllib_response = conn.urlopen(
^^^^^^^^^^^^^
File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/connectionpool.py", line 793, in urlopen
response = self._make_request(
^^^^^^^^^^^^^^^^^^^
File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/connectionpool.py", line 496, in _make_request
conn.request(
File "/home/linuxbrew/.linuxbrew/opt/cfn-lint/libexec/lib/python3.12/site-packages/botocore/awsrequest.py", line 91, in request
if headers.get('Expect', b'') == b'100-continue':
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 807, in get
File "/home/linuxbrew/.linuxbrew/opt/python-urllib3/lib/python3.12/site-packages/urllib3/_collections.py", line 261, in getitem
return ", ".join(val[1:])
^^^^^^^^^^^^^^^^^^
TypeError: sequence item 0: expected str instance, bytes found

[acdha]

The same thing happens with the Mac Homebrew package, as well. It looks like they recently orphaned that install mechanism as the instructions now say you have to use the .pkg files provided on https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html.

[jf001z]

thanks a lot checking the document now.

[mndeveci]

We recommend using our native installers which won't have any dependency on the system python version and libraries. https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html

Can you update your installation with the ones that is provided in the documentation to see if it is going to resolve your problem?

Thanks

[markokimpel]

The first party installer does not have said problem.

My environment:

• Ubuntu
• The homebrew installer, version 1.108.0, showed the error @jf001z4084 reported
• The AWS provided installer, also version 1.108.0, does not show the error

[gihanw]

The first party installer does not have said problem.

My environment:

* Ubuntu

* The homebrew installer, version 1.108.0, showed the error @jf001z4084 reported

* The AWS provided installer, also version 1.108.0, does not show the error

This saved my day

[christoph-zero]

Will this be fixed in the Homebrew managed package?

[jf001z4084]

Thank you very much, the issue is solved, which is caused by Homebrew, after we use the native installer, the issue is gone.

[github-actions]

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