try:
user = get_user(user_id)
except (TypeError, ValueError):
self.add_error_message("The user was incorrect.")
except APINotFoundError:
self.add_error_message("The user was not found.")
except (APINotAuthorizedError, APIForbiddenError):
self.add_error_message("You are not authorized to access this.")
except APIError:
self.add_error_message("There was an unexpected error getting the user.")