From 22f6ffe9de1cc3b84f0bdcebd0a0b90f5b4dfd94 Mon Sep 17 00:00:00 2001
From: Jean-Baptiste Keck <Jean-Baptiste.Keck@imag.fr>
Date: Mon, 18 May 2020 13:57:46 +0200
Subject: [PATCH] add a better message if an operator implementation happens to
be None
---
hysop/core/graph/computational_node_frontend.py | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/hysop/core/graph/computational_node_frontend.py b/hysop/core/graph/computational_node_frontend.py
index 77b14e2d7..ab75850b0 100644
--- a/hysop/core/graph/computational_node_frontend.py
+++ b/hysop/core/graph/computational_node_frontend.py
@@ -1,3 +1,4 @@
+import inspect
from hysop.constants import Implementation, Backend, implementation_to_backend
from hysop.tools.decorators import debug
from hysop.tools.types import check_instance, first_not_None
@@ -87,6 +88,12 @@ class ComputationalGraphNodeFrontend(ComputationalGraphNodeGenerator):
msg+= 'available implementations are:\n {}'
msg=msg.format(implementation, '\n '.join(simplementations))
raise ValueError(msg)
+ elif (self.implementations()[implementation] is None):
+ msg = 'Specified implementation \'{}\' is registered as an available implementation for operator \'{}\', '
+ msg+= 'but no underlying implementation was found. This may be due to missing dependency or a catched '
+ msg+= 'import error in file file://{}.'
+ msg=msg.format(implementation, self.__class__.__name__, inspect.getfile(self.__class__)[:-1])
+ raise ValueError(msg)
self.implementation = implementation
self.backend = implementation_to_backend(implementation)
@@ -96,6 +103,7 @@ class ComputationalGraphNodeFrontend(ComputationalGraphNodeGenerator):
self._input_fields_to_dump = []
self._output_fields_to_dump = []
+
@debug
def _generate(self):
try:
--
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