jupyter_client.provisioning.provisioner_base:KernelProvisionerBase.pre_launch

Extended Summary

This includes applying additional substitutions to the kernel launch command and environment. It also includes preparation of launch parameters.

NOTE: Subclass implementations are advised to call this method as it applies environment variable substitutions from the local environment and calls the provisioner's _finalize_env() method to allow each provisioner the ability to cleanup the environment variables that will be used by the kernel.

This method is called from KernelManager.pre_start_kernel() as part of its start kernel sequence.

Returns the (potentially updated) keyword arguments that are passed to launch_kernel().