> Should we keep this in pylearn2? How much line is printed? How long it was taking you to load the dataset?

I took out the printing and backspacing and now made it just call `log.info` every 100 images. The total time to load is about a minute for the training set when the images are stored on a local disk, though potentially much longer if they're being pulled over NFS.

> From my understanding up to now, you load the full dataset in RAM?

Yes, the whole dataset is loaded into RAM, which takes about 12G.

@dwf I changed all prints to `log.info` or `log.warn` as appropriate. However, now when I try to run the dataset demo (using `python wiskott2.py`), I get this warning, perhaps because logging hasn't been set up by pylearn2?

```
No handlers could be found for logger "__main__"
```