Taha Mustapha Nehdi

PCAM: fix DataLoader pickling error by avoiding module on self

4

PCAM: lazy-import h5py via `_get_h5py` to keep dataset picklable Fixes: #9195 Problem - `PCAM` previously stored the `h5py` module on the dataset instance, making it unpicklable. - `DataLoader(num_workers>0)` / spawn-based...

DataLoader multiprocessing fails when dataset stores a module object (TypeError: cannot pickle 'module' object)

2

## 🐛 Describe the bug When a custom `Dataset` stores a Python **module object** (e.g. `self.h5py = h5py`) as an attribute, `DataLoader` with `num_workers > 0` fails with `TypeError: cannot...