[BUG] [Python] models.set missing, when using uniqeItems: true with python-flask

[mariodsantana]

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [] [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

I want to use uniqueItems: true in my spec, but the generated python-flask code won't run. It throws a ModuleNotFoundError when looking for openapi_server.models.set.Set.

Traceback (most recent call last):
  File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/tmp/openapi_server/__main__.py", line 5, in <module>
    from openapi_server import encoder
  File "/tmp/openapi_server/encoder.py", line 4, in <module>
    from openapi_server.models.base_model_ import Model
  File "/tmp/openapi_server/models/__init__.py", line 6, in <module>
    from openapi_server.models.name import Name
  File "/tmp/openapi_server/models/name.py", line 9, in <module>
    from openapi_server.models.set import Set
ModuleNotFoundError: No module named 'openapi_server.models.set'

openapi-generator version

5.0.1 - based on what it says during startup

OpenAPI declaration file content or url

openapi: 3.0.1

info:
  title: yooneek
  contact:
    email: [email protected]
  license:
    name: MIT
  version: 1.0.0

components:
  schemas:
    Name:
      type: object
      properties:
        id:
          type: string
        parts:
          type: array
          uniqueItems: true
          items:
            type: string

  securitySchemes:
    basic:
      type: http
      scheme: basic

paths:
  /name/{name_id}:
    summary: Operations on a name
    get:
      summary: Get an name
      operationId: get_name
      parameters:
        - name: name_id
          in: path
          description: ID of name to get
          required: true
          schema:
            type: string
      responses:
        200:
          description: successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Name'

Generation Details

Not sure what "generation details" means - unless it's how I generated the spec above? This was part of a much larger spec for which I'm trying to generate a POC service. This project has been a huge help, thanks!

Steps to reproduce

Save the above yaml to openapi.yaml and run

npx @openapitools/openapi-generator-cli generate -i openapi.yaml -g python-flask

Related issues/PRs

I couldn't find anything that seems closely related

Suggest a fix

Seems like the models.set module just isn't included? Hopefully it's a simple oversight...

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[wing328]

Can you please use the same spec and test with the python client generator as well? If it works (output looks to you), then we can plot the fix from the python client generator to python-flask server generator.

[mariodsantana]

Good idea, I should have thought of that for the op. It doesn't error out, but it doesn't seem to apply the constraint. Using the python generator on the yaml above:

IPython 7.19.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import openapi_client.models

In [2]: n = openapi_client.models.Name(id='id#1', parts=['same', 'same'])

In [3]: n
Out[3]: {'id': 'id#1', 'parts': ['same', 'same']}

In [4]: type(n)
Out[4]: openapi_client.model.name.Name

In [5]: n.openapi_types
Out[5]: {'id': (str,), 'parts': ([str],)}

In [6]: n.validations
Out[6]: {('parts',): {}}

[Kevin-Bannier]

I can't reproduce this bug with 6.0.1. It's seems to be resolved.