Running langgraph cli dev command with poetry

[KenjiPcx]

Hi,

I was following the quickstart from https://langchain-ai.github.io/langgraph/tutorials/langgraph-platform/local-server/ and I wanted to manage my project dependencies with poetry, so I changed the pyproject.toml file and setup the poetry project.

But when I run langgraph dev to run the studio, it tells me that module <app_name> cannot be found, and asks me to install the package again.

It works fine when I don't use poetry, but its using my global python executable...

Tried to install langgraph cli inside poetry and used
poetry run langgraph dev but it still had the same error.

[majulahsingapuri]

so I changed the pyproject.toml file and setup the poetry project.

The only way it works for me is to setup poetry in the root folder and then langgraph new ./app .... Since that command creates a new pyproject.toml, I am lead to believe this is the only way to go about doing it since there might be some configurations that are required later on.