<string>:1: SyntaxWarning: list indices must be integers or slices, not str; perhaps you missed a comma?

Describe the bug We get the syntax error above when running checkov against certain directories:

I’ve narrowed this down to being caused by .auto.tfvars, this is the example config:

iam_bindings.tf

resource "google_project_iam_member" "gcp_devs" {
  for_each = toset(var.gcp_devs_bindings["roles"])
  role     = each.value
  member   = var.gcp_devs_bindings["member"]
}

variable "gcp_devs_bindings" {}

iam_bindings.auto.tfvars

gcp_devs_bindings = {
  member = "group:[e-mail]",
  roles = [
    "roles/viewer",
    "roles/bigquery.admin",
    "roles/cloudscheduler.admin",
    "roles/container.clusterAdmin",
    "roles/run.admin",
    "roles/storagetransfer.user",
    "roles/automl.admin",
    "roles/cloudsql.admin",
    "roles/cloudtasks.admin",
    "roles/composer.admin",
    "roles/compute.admin",
    "roles/cloudscheduler.jobRunner",
    "roles/serviceusage.apiKeysAdmin",
  ]
}

If I replace the auto.tfvars file with locals, the error goes away.

To Reproduce Steps to reproduce the behavior:

1. Run checkov against the above code.

Expected behavior No error, or more concise where the error is coming from.

Desktop (please complete the following information):

• OS: os X
• Checkov Version 2.0.77

[tronxd]

Hey @dwilliams782 @zachpetersen the issue is verified to be at Python versions 3.8+ I will create a PR that suppress the warning and the issue will be resolved

[schosterbarak]

fixed. thanks @tronxd