Source code for wolframclient.language.exceptions

# -*- coding: utf-8 -*-

from __future__ import absolute_import, print_function, unicode_literals

from wolframclient.language import wl
from wolframclient.serializers.serializable import WLSerializable
from wolframclient.utils.decorators import to_dict
from wolframclient.utils.encoding import safe_force_text

[docs]class WolframLanguageException(WLSerializable, Exception): """ The most generic exception raised by the Wolfram Client Library. This class is :class:`~wolframclient.serializers.serializable.WLSerializable` and will automatically serialize to a failure box when evaluated in Wolfram Desktop. """ def __init__(self, payload, exec_info=None): self.payload = payload if exec_info: self.set_traceback(*exec_info) else: self.set_traceback(None, None, None)
[docs] def failure_tag(self): return "PythonError"
[docs] def failure_template(self): return safe_force_text(self.payload)
[docs] def failure_parameters(self): return {}
[docs] def failure_code(self): if isinstance(self.payload, Exception): return safe_force_text(self.payload.__class__.__name__)
[docs] def set_traceback(self, exc_type, exc_value, tb): self.exc_type, self.exc_value, self.tb = exc_type, exc_value, tb
[docs] def to_wl(self, *args, **opts): return wl.Failure( self.failure_tag(), wl.Association( *(wl.RuleDelayed(key, value) for key, value in self.failure_meta().items()) ), )
[docs] def show_traceback(self): return True
[docs] @to_dict def failure_meta(self): template, parameters, code = ( self.failure_template(), self.failure_parameters(), self.failure_code(), ) if template: yield "MessageTemplate", template yield "MessageParameters", parameters if code: yield "FailureCode", code if self.show_traceback() and self.tb: from wolframclient.language.traceback import serialize_traceback yield "Traceback", serialize_traceback(self.exc_type, self.exc_value, self.tb)
def __repr__(self): return "%s: %s" % (self.__class__.__name__, self.failure_template())