Exceptions

h2o.exceptions – all exceptions classes in h2o module.

All H2O exceptions derive from H2OError.

exception h2o.exceptions.H2OStartupError

Bases: h2o.exceptions.H2OSoftError

Raised by H2OLocalServer when the class fails to launch a server.

exception h2o.exceptions.H2OConnectionError

Bases: h2o.exceptions.H2OSoftError

Raised when connection to an H2O server cannot be established.

This can be raised if the connection was not initialized; or the server cannot be reached at the specified address; or there is an authentication error; or the request times out; etc.

exception h2o.exceptions.H2OServerError(message, stacktrace=None)

Bases: h2o.exceptions.H2OError

Raised when any kind of server error is encountered.

This includes: server returning HTTP status 500; or server sending malformed JSON; or server returning an unexpected response (e.g. lacking a “__schema” field); or server indicating that it is in an unhealthy state; etc.

exception h2o.exceptions.H2OResponseError

Bases: h2o.exceptions.H2OError, exceptions.EnvironmentError

Raised when the server encounters a user error and sends back an H2OErrorV3 response.

exception h2o.exceptions.H2OValueError(message, var_name=None, skip_frames=0)

Bases: h2o.exceptions.H2OSoftError

Error indicating that wrong parameter value was passed to a function.

exception h2o.exceptions.H2OTypeError(var_name=None, exp_types=None, var_value=None, message=None, skip_frames=0)

Bases: h2o.exceptions.H2OSoftError

Error indicating that the user passed a parameter of wrong type.

This error will trigger “soft” exception handling, in the sense that the stack trace will be much more compact than usual.

skip_frames

Number of local frames to skip when printing our the stacktrace.

var_name

Variable name.