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54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
"""
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Miscellaneous helper code.
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"""
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import torch
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class DotDict(dict):
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"""
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dot.notation access to dictionary attributes
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"""
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def __getattr__(self, attr):
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return self[attr]
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__setattr__ = dict.__setitem__
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__delattr__ = dict.__delitem__
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def get_dict_to_torch(stuff, device="cpu"):
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"""Set everything in the dict to the specified torch device."""
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if isinstance(stuff, dict):
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for k, v in stuff.items():
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stuff[k] = get_dict_to_torch(v, device)
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return stuff
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if isinstance(stuff, torch.Tensor):
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return stuff.to(device)
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return stuff
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def get_dict_to_cpu(stuff):
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"""Set everything in the dict to CPU."""
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if isinstance(stuff, dict):
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for k, v in stuff.items():
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stuff[k] = get_dict_to_cpu(v)
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return stuff
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if isinstance(stuff, torch.Tensor):
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return stuff.detach().cpu()
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return stuff
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def is_not_none(var):
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"""Return True if the variable var is None."""
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return not isinstance(var, type(None))
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def get_masked_dict(d, mask):
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"""Return a masked dictionary.
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TODO(ethan): add more asserts/checks so this doesn't have unpredictable behavior."""
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masked_dict = {}
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for key, value in d.items():
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masked_dict[key] = value[mask]
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return masked_dict
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