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[GH-ISSUE #82] Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x1065cab40> #42

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opened 2026-05-06 12:36:36 +02:00 by BreizhHardware · 5 comments

BreizhHardware commented

2026-05-06 12:36:36 +02:00

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Originally created by @thiagooliveira-sh on GitHub (Nov 27, 2023).
Original GitHub issue: https://github.com/patrickchugh/terravision/issues/82

Problem Description

When running the terravision draw command in a local directory containing Terraform code, an unhandled error is triggered:

Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x1065cab40>

Context

Command Executed: terravision draw
Environment: Python 3.9.6
Terravision Version: 0.5
Terraform Version: v1.4.6

Steps to Reproduce

Access the directory with the Terraform code.
Run the terravision draw command.
Observe the mentioned error.

Expected Behavior

The terravision draw command was expected to execute correctly without generating errors related to unsupported operand types between data types.

Additional Notes

Unprocessed terraform graph dictionary:

{
    "aws_instance.webserver": [
        "aws_lb_target_group_attachment.name"
    ],
    "aws_lb.nginx": [
        "aws_lb_listener.name"
    ],
    "aws_lb_listener.name": [],
    "aws_lb_target_group.nginx": [
        "aws_lb_listener.name",
        "aws_lb_target_group_attachment.name"
    ],
    "aws_lb_target_group_attachment.name": [],
    "aws_security_group.allow_http": [
        "aws_instance.webserver",
        "aws_lb.nginx"
    ]
}

Parsing Terraform Source Files..
  Added Source Location: .
  Parsing ./data.tf
    Found 3 data stanza(s)
  Parsing ./main.tf
    Found 2 module stanza(s)
  Added Source Location: /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier
  Added Source Location: /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier
  Parsing ./variables.tf
  Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/output.tf
  Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/ec2.tf
    Found 2 resource stanza(s)
  Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/variables.tf
    Found 8 variable stanza(s)
  Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/alb.tf
    Found 4 resource stanza(s)

Processing variables..

Processing resources..

Checking for additional links between 6 resources..

Conditional resource list:
Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x1065cab40>

Originally created by @thiagooliveira-sh on GitHub (Nov 27, 2023). Original GitHub issue: https://github.com/patrickchugh/terravision/issues/82 ## Problem Description When running the terravision draw command in a local directory containing Terraform code, an unhandled error is triggered: `Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x1065cab40> ` ## Context Command Executed: terravision draw Environment: Python 3.9.6 Terravision Version: 0.5 Terraform Version: v1.4.6 ## Steps to Reproduce Access the directory with the Terraform code. Run the terravision draw command. Observe the mentioned error. ## Expected Behavior The terravision draw command was expected to execute correctly without generating errors related to unsupported operand types between data types. ## Additional Notes ``` Unprocessed terraform graph dictionary: { "aws_instance.webserver": [ "aws_lb_target_group_attachment.name" ], "aws_lb.nginx": [ "aws_lb_listener.name" ], "aws_lb_listener.name": [], "aws_lb_target_group.nginx": [ "aws_lb_listener.name", "aws_lb_target_group_attachment.name" ], "aws_lb_target_group_attachment.name": [], "aws_security_group.allow_http": [ "aws_instance.webserver", "aws_lb.nginx" ] } Parsing Terraform Source Files.. Added Source Location: . Parsing ./data.tf Found 3 data stanza(s) Parsing ./main.tf Found 2 module stanza(s) Added Source Location: /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier Added Source Location: /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier Parsing ./variables.tf Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/output.tf Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/ec2.tf Found 2 resource stanza(s) Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/variables.tf Found 8 variable stanza(s) Parsing /Users/thiagoalexandria/Documents/Projetos/Terraform/aws_tf_estudos/modules/two-tier/alb.tf Found 4 resource stanza(s) Processing variables.. Processing resources.. Checking for additional links between 6 resources.. Conditional resource list: Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x1065cab40> ```

BreizhHardware closed this issue

2026-05-06 12:36:36 +02:00

BreizhHardware commented

2026-05-06 12:36:37 +02:00

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Owner

@rodrigo-segui commented on GitHub (Nov 28, 2023):

I'm also having this problem.
Can anyone help?

@rodrigo-segui commented on GitHub (Nov 28, 2023): I'm also having this problem. Can anyone help?

BreizhHardware commented

2026-05-06 12:36:37 +02:00

Author

Owner

@patrickchugh commented on GitHub (Nov 29, 2023):

@rodrigo-segui @thiagoalexandria Can you try to do a git pull with the latest code and see if this is fixed? If not please supply some sample source so I can try to reproduce the error. Thanks!

@patrickchugh commented on GitHub (Nov 29, 2023): @rodrigo-segui @thiagoalexandria Can you try to do a git pull with the latest code and see if this is fixed? If not please supply some sample source so I can try to reproduce the error. Thanks!

BreizhHardware commented

2026-05-06 12:36:37 +02:00

Author

Owner

@thiagooliveira-sh commented on GitHub (Nov 30, 2023):

I'm facing the same error, @patrickchugh it generates the plan, reads it, but when it reaches the Conditional resource list stage, it fails with an error indicated in the issue:

Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x108641880>

Here's the link to the repository with the code I'm testing.

https://github.com/thiagoalexandria/terravision-example

@thiagooliveira-sh commented on GitHub (Nov 30, 2023): I'm facing the same error, @patrickchugh it generates the plan, reads it, but when it reaches the Conditional resource list stage, it fails with an error indicated in the issue: ``` Unhandled error: <class 'TypeError'>, unsupported operand type(s) for +: 'bool' and 'str', <traceback object at 0x108641880> ``` Here's the link to the repository with the code I'm testing. https://github.com/thiagoalexandria/terravision-example

BreizhHardware commented

2026-05-06 12:36:38 +02:00

Author

Owner

@patrickchugh commented on GitHub (Dec 2, 2023):

@thiagoalexandria I fixed it and was able to get this to run when I tagged some subnets. Please download the latest code and try again.

Enriched graphviz dictionary:

{
    "aws_instance.webserver": [
        "aws_lb.elb"
    ],
    "aws_lb.elb": [
        "aws_alb.elb"
    ],
    "aws_security_group.allow_http": [
        "aws_instance.webserver",
        "aws_lb.elb"
    ]
}

Output JSON Dictionary :
{
    "aws_instance.webserver": [
        "aws_lb.elb"
    ],
    "aws_lb.elb": [
        "aws_alb.elb"
    ],
    "aws_security_group.allow_http": [
        "aws_instance.webserver",
        "aws_lb.elb"
    ]
}

Exporting graph object into file architecture.json

Completed!

@patrickchugh commented on GitHub (Dec 2, 2023): @thiagoalexandria I fixed it and was able to get this to run when I tagged some subnets. Please download the latest code and try again. ``` Enriched graphviz dictionary: { "aws_instance.webserver": [ "aws_lb.elb" ], "aws_lb.elb": [ "aws_alb.elb" ], "aws_security_group.allow_http": [ "aws_instance.webserver", "aws_lb.elb" ] } Output JSON Dictionary : { "aws_instance.webserver": [ "aws_lb.elb" ], "aws_lb.elb": [ "aws_alb.elb" ], "aws_security_group.allow_http": [ "aws_instance.webserver", "aws_lb.elb" ] } Exporting graph object into file architecture.json Completed! ```

BreizhHardware commented

2026-05-06 12:36:38 +02:00

Author

Owner

@thiagooliveira-sh commented on GitHub (Dec 3, 2023):

Now it works, thanks a lot !

@thiagooliveira-sh commented on GitHub (Dec 3, 2023): Now it works, thanks a lot !