"aws cloudformation package" fails with AWS::LanguageExtensions Fn::ForEach in Resources

[x6j8x]

Describe the bug

Applying aws cloudformation package to a template that includes the AWS::LanguageExtensions transform and a Fn::ForEach in the Resources section results in the following error:

2024-01-08 15:32:38,671 - MainThread - awscli.clidriver - DEBUG - Exception caught in main()
Traceback (most recent call last):
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/clidriver.py", line 217, in main
    return command_table[parsed_args.command](remaining, parsed_args)
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/clidriver.py", line 361, in __call__
    return command_table[parsed_args.operation](remaining, parsed_globals)
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/customizations/commands.py", line 187, in __call__
    return self._run_main(parsed_args, parsed_globals)
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/customizations/cloudformation/package.py", line 150, in _run_main
    exported_str = self._export(template_path, use_json)
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/customizations/cloudformation/package.py", line 166, in _export
    exported_template = template.export()
  File "/root/.pyenv/versions/3.9.16/lib/python3.9/site-packages/awscli/customizations/cloudformation/artifact_exporter.py", line 664, in export
    resource_type = resource.get("Type", None)
AttributeError: 'list' object has no attribute 'get'

Expected Behavior

Template is successfully packaged.

Current Behavior

Packaging fails

Reproduction Steps

Include Fn::ForEach in Resources block and package template.

Possible Solution

No response

Additional Information/Context

No response

CLI version used

aws-cli/1.27.110 Python/3.9.16 Linux/4.14.311-233.529.amzn2.aarch64

Environment details (OS name and version, etc.)

Amazon Linux

[isuftin]

@x6j8x - Looks like this was very recently fixed #8075

Consider updating your version of awscli

[RyanFitzSimmonsAK]

Hi @x6j8x, thanks for reaching out. As @isuftin mentioned, please update your CLI version to 2.15.3 or higher, and let me know how that goes.

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