You are working on the MapIV/pypcd4 repository. The source code is checked out at /testbed at commit…

You are working on the MapIV/pypcd4 repository. The source code is checked out at /testbed at commit…: a task in SWE-Lego-RL-2699 (Harbor dataset). The loop in the from fileobj method should exit if the file is not a valid PCD file, possibly by raising an appropriate exception.

The task

The loop in the `from_fileobj` method should exit if the file is not a valid PCD file, possibly by raising an appropriate exception.

Part of Lego-X/Lego-RL-2699.