# NominalVideoStreamNotOpenError

## exception nominal.exceptions.NominalVideoStreamNotOpenError

Bases: [`NominalVideoStreamError`](https://dev.nominal.io/python/ref/generated/nominal.exceptions.NominalVideoStreamError.md#nominal.exceptions.NominalVideoStreamError "nominal.exceptions.NominalVideoStreamError")

The video stream is not open. Call open() first or use as a context manager.

Initialize error.