reproduce_issue_1.sh

#!/bin/sh


git checkout v0.5.0

python <<EOF
import pickle

import skorch
import skorch.toy


model = skorch.toy.make_classifier()
model = skorch.NeuralNetClassifier(model)
model.initialize()

with open('model.pkl', 'wb') as f:
    pickle.dump(model, f)
EOF

git checkout master

# Fix issue (2) so loading works
git apply - <<EOF
diff --git a/skorch/net.py b/skorch/net.py
index fdbdf01..ea87905 100644
--- a/skorch/net.py
+++ b/skorch/net.py
@@ -1419,9 +1419,6 @@ class NeuralNet:
             f.write(state['cuda_dependent_attributes_'])
             f.seek(0)
             cuda_attrs = torch.load(f, **load_kwargs)
-        for key in self.cuda_dependent_attributes_:
-            if key in cuda_attrs:
-                del state[key]
         state.update(cuda_attrs)
         self.__dict__.update(state)

EOF

python <<EOF
import pickle

with open('model.pkl', 'rb') as f:
    m = pickle.load(f)

with open('model2.pkl', 'wb') as f:
    pickle.dump(m, f)
EOF

reproduce_issue_2.sh

#!/bin/sh


git checkout v0.5.0

python <<EOF
import pickle

import skorch
import skorch.toy


model = skorch.toy.make_classifier()
model = skorch.NeuralNetClassifier(model)
model.initialize()

with open('model.pkl', 'wb') as f:
    pickle.dump(model, f)
EOF

git checkout master

python <<EOF
import pickle

with open('model.pkl', 'rb') as f:
    m = pickle.load(f)

print(m)
EOF