[BUG] [PYTHON] Invalid function names based on strings containing # and digits

[syntaxaire]

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

Invalid function names are generated from enum string values resembling "#367B9C".

openapi-generator version

latest via docker CLI

OpenAPI declaration file content or url

Minimal reproduction: gist, validated with vacuum

Generation Details

docker run --rm -v ${PWD}:/local openapitools/openapi-generator-cli:latest generate --global-property skipFormModel=false -i /local/color-names.json -g python -o /local/openapi-client

Steps to reproduce

After generating, install generated code and run pytest.

Output:

openapi-client\test\test_paths\test_sample_json\test_post.py:15: in <module>
    from openapi_client.paths.sample_json import post  # noqa: E501
E     File "C:\Users\Work\Code\openapi-generator-repros\openapi-client\openapi_client\paths\sample_json\post.py", line 90
E       def 67B9C(cls):
E            ^
E   SyntaxError: invalid decimal literal

[spacether]

Sample spec is:

{
  "openapi": "3.0.0",
  "info": {
    "title": "API Documentation",
    "description": "Test documentation",
    "contact": {
      "name": "Support",
      "email": "[email protected]"
    },
    "version": "v4",
    "x-logo": {
      "url": "https://example.com/logo.png"
    }
  },
  "servers": [
    {
      "url": "https://app.example.com/api/v4",
      "description": "Server"
    }
  ],
  "paths": {
    "/sample.json": {
      "post": {
        "tags": [
          "Things"
        ],
        "summary": "Create a new Thing",
        "operationId": "Thing#create",
        "description": "Outlines the parameters and data fields used when creating a new Thing",
        "responses": {
          "200": {
            "description": "Ok",
            "content": {
              "application/json": {}
            }
          }
        },
        "requestBody": {
          "description": "Request Body for Things",
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "data"
                ],
                "properties": {
                  "data": {
                    "type": "object",
                    "properties": {
                      "color": {
                        "type": "string",
                        "enum": [
                          "#367B9C",
                          "#FFA5A4",
                          "#83D17F",
                          "#FFAC7B",
                          "#8E3F64",
                          "#C75300",
                          "#009CEC",
                          "#62D6B1",
                          "#9EEDCB",
                          "#F9A2C4",
                          "#616161",
                          "#BBDA81",
                          "#DFD3F8",
                          "#D6C4A5",
                          "#FFD478",
                          "#6AC9DE",
                          "#EABBB0",
                          "#BFC2E1",
                          "#DADADA",
                          "#CDE2F5"
                        ],
                        "description": "Test description"
                      },
                      "name": {
                        "type": "string",
                        "description": "Another test description"
                      },
                      "source": {
                        "type": "string",
                        "enum": [
                          "web",
                          "mobile"
                        ],
                        "description": "Yet another test description"
                      },
                      "visible": {
                        "type": "boolean",
                        "description": "Nothing to see here"
                      }
                    },
                    "required": [
                      "name"
                    ]
                  }
                }
              }
            }
          },
          "required": false
        }
      }
    }
  },
  "tags": [
    {
      "name": "Things",
      "description": "A bunch of things"
    }
  ]
}

[spacether]

@syntaxaire fixed!