What did you do?
Looked through the source code.
What did you expect to happen?
References to Apache-2.0 code contain the appropriate notice.
What actually happened?
The corresponding notice header is missing: https://github.com/python-pillow/Pillow/blob/main/src/PIL/IcoImagePlugin.py
In there, https://code.google.com/archive/p/casadebender/wikis/Win32IconImagePlugin.wiki is referenced, which is subject to the Apache-2.0 license:
Copyright 2008 Bryan Davis
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.
What did you do?
Looked through the source code.
What did you expect to happen?
References to Apache-2.0 code contain the appropriate notice.
What actually happened?
The corresponding notice header is missing: https://github.com/python-pillow/Pillow/blob/main/src/PIL/IcoImagePlugin.py
In there, https://code.google.com/archive/p/casadebender/wikis/Win32IconImagePlugin.wiki is referenced, which is subject to the Apache-2.0 license: