Undefined name: f --> bare except

[cclauss]

https://github.com/microsoft/DeepSpeed/blob/master/tests/model/Megatron_GPT2/run_checkpoint_test.py#L113-L115

The variable f is an undefined name in this context. This will raise a NameError which will be caught by the bare except and No old checkpoint will be printed. How should f be defined?

[ShadenSmith]

Hello! Thank you for reporting this. We submitted a quick fix and in the meantime I am working on the bare except that is another issue as you pointed out.

Thanks for catching this!