Exceptions

pykx.exceptions

KDB-X Python exceptions and warnings.

Standard Python exceptions (e.g. TypeError, ValueError, etc.) are used as convention dictates, but for KDB-X Python and q specific issues custom exceptions are used.

PyKXWarning

Bases: Warning

Warning type for KDB-X Python-specific warnings.

PyKXException

Bases: Exception

Base exception type for KDB-X Python-specific exceptions.

LicenseException

LicenseException(feature_msg='use this feature', *args, **kwargs)

Bases: PyKXException

Exception for when a feature that requires a valid q license is used without one.

FutureCancelled

FutureCancelled(msg='', *args, **kwargs)

Bases: PyKXException

Exception for when a QFuture is cancelled.

NoResults

NoResults(*args, **kwargs)

Bases: PyKXException

Exception for when a QFutures result is not yet ready.

UninitializedConnection

UninitializedConnection(*args, **kwargs)

Bases: PyKXException

Exception for when a QConnection is used before it is initialized.

PyArrowUnavailable

PyArrowUnavailable(msg=None, *args, **kwargs)

Bases: PyKXException

Exception for features that depend on PyArrow when PyArrow is not available.

QError

Bases: PyKXException

Exception type for q errors.

Refer to https://code.kx.com/q/basics/errors/ for clarification about error messages.

DBError

Bases: PyKXException

Exceptions that relate to errors in database usage unrelated to q execution