Hello everyone I was experiencing an issue when creating a D

Question

Hello everyone I was experiencing an issue when creating a Deployment which I documented here <https discourse prefect io t error when creating a deployment with the cli modulenotfound 2426> Unfortunately it has not garnered very much attention from what I can tell What it bols down to is that creating a Deployment using the Prefect CLI yields ```Script at data exports extract data py encountered an exception ModuleNotFoundError No module named pandas ``` which kind of confuses me since the host where I am creating the deployment is not where it will run My questions boil down to 1 Why does the CLI need to know `pandas` or any other library that I m using 2 Does this mean that I should set up a different venv for every one of my deployments

Kelvin DeCosta · Answer

Ran into this issue a few times I think whenever a deployment is created from a flow the CLI Python API needs to import the flow function This can t be done without all the dependencies being resolved The solution is to install `pandas` wherever you re running your script

Filip Panovski · Answer

Yes the solution is indeed to install whatever library is causing the issue However what if I have numerous deployments each with their own libraries versions which potentially conflict across deployments So the general solution would be to have a venv per deployment

Kelvin DeCosta · Answer

That sounds like a pain tbf

Christopher Boyd · Answer

Hi Filip I deal with this in a CI CD pipeline that is a shared system My personal resolution was not to build from flow but to build just a generic Deployment object and passing the path entrypoint In other words I don t import the flow as an object and the code isn t run loaded The downsides of this I have had to create my own parameter schema since it cannot be inferred but that s a work in progress

Christopher Boyd · Answer

e g ```deployment = Deployment name=f Import FLOW ENVIRONMENT flow name= Import flow version=1 work queue name= dev infrastructure=k8s job path= opt prefect flows parameters=params entrypoint= flow py flow import parameter openapi schema=schema ```

Filip Panovski · Answer

Thanks a lot for the info < Christopher Boyd> I m having a bit of trouble finding much info on the `parameter openapi schema` do you know of an example in this context that I might have a look at

Christopher Boyd · Answer

I can share an example

Christopher Boyd · Answer

```schema = title Parameters type object properties callback url type string title callback url trigger source type string title trigger source external id type string title external id debug type boolean title debug default False gcp logging enabled type boolean title gcp logging enabled default False duration type array items type integer example 1 title duration ```

Christopher Boyd · Answer

properties would be where you define the actual parameters type and title are the minimums you would need

Filip Panovski · Answer

Ah I didn t realize that a dict would suffice Do each of the individual properties fields `type` `title` `default` correspond to the `pydantic Field` kwargs

Filip Panovski · Answer

Ah I see that s just an OpenAPI JsonSchema compatible schema So if I had default such as `pendulum yesterday Europe Berlin date ` I wouldn t be able to pass those sensibly and would need to go the `pydantic Field` route correct

Christopher Boyd · Answer

Truthfully I m not 100 sure there you re right it is just an openapi compatible schema I can t speak knowledgeably to your question regarding pydantic Field though unfortunatley

Filip Panovski · Answer

That s alright the schema example already helped me tremendously Thank you and have a nice weekend slightly smiling face