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?
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Description

When I run the python-fastapi generator, with the python-fastapi templates provided in this repo, and specify packageName, the generated README.md doesn't pick it up for the example uvicorn command: PYTHONPATH=src uvicorn openapi_server.main:app --host 0.0.0.0 --port {{serverPort}}

openapi-generator version

Latest master branch as of Aug 28 2024.

OpenAPI declaration file content or url

I'm using the provided petstore.yaml, but it shouldn't matter.

Generation Details

openapi-generator generate \
    -i https://raw.githubusercontent.com/openapitools/openapi-generator/master/modules/openapi-generator/src/test/resources/3_0/petstore.yaml \
    -g python-fastapi \
    -t modules/openapi-generator/src/main/resources/python-fastapi \
    --additional-properties packageName=my_custom_name,fastapiImplementationPackage=my_custom_name.impl \
    -o ~/myprojects/api

Steps to reproduce

Run the above generator command and open the README.md. You will see that the uvicorn command specifies openapi_server.main:app even though packageName was used to specify something other than openapi_server (should be my_custom_name.main:app)

Related issues/PRs

Suggest a fix

Change the line in the provided template README.mustache from:

PYTHONPATH=src uvicorn openapi_server.main:app --host 0.0.0.0 --port {{serverPort}}

to:

PYTHONPATH=src uvicorn {{packageName}}.main:app --host 0.0.0.0 --port {{serverPort}}