openai/openai-python · error · ValueError

Expected a non-empty value for `project_id` but received {pr

Error message

Expected a non-empty value for `project_id` but received {project_id!r}

What it means

Raised client-side by the openai-python SDK before any HTTP request. Assigning a role to a group via client.admin.organization.projects.groups.roles.create(...) requires a non-empty project_id because it is interpolated into /projects/{project_id}/groups/{group_id}/roles. The guard prevents a malformed URL and echoes the invalid value in the error message.

Source

Thrown at src/openai/resources/admin/organization/projects/groups/roles.py:74

        extra_body: Body | None = None,
        timeout: float | httpx2.Timeout | None | NotGiven = not_given,
    ) -> RoleCreateResponse:
        """
        Assigns a project role to a group within a project.

        Args:
          role_id: Identifier of the role to assign.

          extra_headers: Send extra headers

          extra_query: Add additional query parameters to the request

          extra_body: Add additional JSON properties to the request

          timeout: Override the client-level default timeout for this request, in seconds
        """
        if not project_id:
            raise ValueError(f"Expected a non-empty value for `project_id` but received {project_id!r}")
        if not group_id:
            raise ValueError(f"Expected a non-empty value for `group_id` but received {group_id!r}")
        return self._post(
            path_template("/projects/{project_id}/groups/{group_id}/roles", project_id=project_id, group_id=group_id),
            body=maybe_transform({"role_id": role_id}, role_create_params.RoleCreateParams),
            options=make_request_options(
                extra_headers=extra_headers,
                extra_query=extra_query,
                extra_body=extra_body,
                timeout=timeout,
                security={"admin_api_key_auth": True},
            ),
            cast_to=RoleCreateResponse,
        )

    def retrieve(
        self,
        role_id: str,

View on GitHub (pinned to 9917c6e28e)

Solutions

  1. Verify and populate project_id before the call; print repr() to confirm the problem.
  2. Load the id from a required setting and validate at application startup.
  3. Derive it from client.admin.organization.projects.list()/retrieve() responses.

Example fix

# before
client.admin.organization.projects.groups.roles.create(project_id=os.getenv("PROJECT"), group_id=gid, role_id=rid)

# after
project_id = os.environ["PROJECT_ID"]
client.admin.organization.projects.groups.roles.create(project_id=project_id, group_id=gid, role_id=rid)
Defensive patterns

Strategy: validation

Validate before calling

if not project_id:
    raise ValueError("project_id must be set to assign group roles")
client.admin.organization.projects.groups.roles.create(project_id=project_id, group_id=group_id, role_id=role_id)

Type guard

def valid_project_id(pid: object) -> bool:
    return isinstance(pid, str) and pid.strip() != ""

Try / catch

try:
    client.admin.organization.projects.groups.roles.create(project_id=pid, group_id=gid, role_id=rid)
except ValueError as e:
    raise ConfigError(f"bad arguments for role assignment: {e}") from e

Prevention

When it happens

Trigger: Calling roles.create(project_id='', group_id=..., role_id=...) where project_id is None or empty (unset env var, missing config key, failed lookup).

Common situations: Missing project id in CI secrets; scripts where the project id is fetched from a prior API call that returned no data; copy-paste from examples that hardcode placeholder ids like 'proj_abc' replaced with blanks.

Understand the failure class

Background: Missing required parameter errors: what 'X is required' and 'the required X param is missing' mean, and how to fix them — this error's family across 27 libraries.

Related errors

AI-assisted analysis of openai/openai-python@9917c6e28e (2026-08-28). Data as JSON: /api/errors/0471502d18ede7e2. Report an issue: GitHub.