exp_lr_scheduler is missing

[gudovskiy]

Seems that you need this to utils.py:

def exp_lr_scheduler(optimizer, decay_ratio):
"""Decay learning rate by a factor of lr_decay every lr_decay_epoch epochs"""
for param_group in optimizer.param_groups:
param_group['lr'] *= decay_ratio
return optimizer

[gudovskiy]

OK, I found this function in ./optimizer . Then, call should be:
hf_optm_utils.exp_lr_scheduler(optimizer, decay_ratio=args.lr_decay)