1 files changed, 41 insertions, 0 deletions
diff --git a/io_scene_gltf2/io/com/gltf2_io_functional.py b/io_scene_gltf2/io/com/gltf2_io_functional.py
new file mode 100755
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+++ b/io_scene_gltf2/io/com/gltf2_io_functional.py
@@ -0,0 +1,41 @@
+# Copyright 2018 The glTF-Blender-IO authors.
+#
+# 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 typing
+
+
+def chunks(lst: typing.Sequence[typing.Any], n: int) -> typing.List[typing.Any]:
+    """
+    Generator that yields successive n sized chunks of the list l
+    :param lst: the list to be split
+    :param n: the length of the chunks
+    :return: a sublist of at most length n
+    """
+    result = []
+    for i in range(0, len(lst), n):
+        result.append(lst[i:i + n])
+    return result
+
+
+def unzip(*args: typing.Iterable[typing.Any]) -> typing.Iterable[typing.Iterable[typing.Any]]:
+    """
+    Unzip the list. Inverse of the builtin zip
+    :param args: a list of lists or multiple list arguments
+    :return: a list of unzipped lists
+    """
+    if len(args) == 1:
+        args = args[0]
+
+    return zip(*args)
+