Adds a numpy_array_representer to yaml (#455)

on runtime, to avoid serialization issues

Author: rahul-tuli

src/sparsezoo/analyze/analysis.py

@@ -30,6 +30,7 @@
 from pydantic import BaseModel, Field, PositiveFloat, PositiveInt
 
 from sparsezoo import Model
+from sparsezoo.analyze.utils.helpers import numpy_array_representer
 from sparsezoo.analyze.utils.models import (
     DenseSparseOps,
     Entry,
@@ -93,6 +94,9 @@
     "Gemm",
 }
 
+# add numpy array representer to yaml
+yaml.add_representer(numpy.ndarray, numpy_array_representer)
+
 
 class YAMLSerializableBaseModel(BaseModel):
     """

src/sparsezoo/analyze/utils/__init__.py

@@ -13,3 +13,5 @@
 # limitations under the License.
 
 # flake8: noqa
+
+from .helpers import *

src/sparsezoo/analyze/utils/helpers.py

@@ -0,0 +1,29 @@
+# Copyright (c) 2021 - present / Neuralmagic, Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import numpy
+import yaml
+
+
+__all__ = [
+    "numpy_array_representer",
+]
+
+
+def numpy_array_representer(dumper: yaml.Dumper, data: numpy.ndarray):
+    """
+    A representer for numpy arrays to be used with pyyaml
+    """
+    return dumper.represent_sequence("tag:yaml.org,2002:seq", data.tolist())