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import difflib |
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import torch |
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def get_layer(l_name, library=torch.nn): |
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"""Return layer object handler from library e.g. from torch.nn |
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E.g. if l_name=="elu", returns torch.nn.ELU. |
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Args: |
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l_name (string): Case insensitive name for layer in library (e.g. .'elu'). |
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library (module): Name of library/module where to search for object handler |
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with l_name e.g. "torch.nn". |
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Returns: |
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layer_handler (object): handler for the requested layer e.g. (torch.nn.ELU) |
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""" |
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all_torch_layers = [x for x in dir(torch.nn)] |
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match = [x for x in all_torch_layers if l_name.lower() == x.lower()] |
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if len(match) == 0: |
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close_matches = difflib.get_close_matches( |
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l_name, [x.lower() for x in all_torch_layers] |
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) |
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raise NotImplementedError( |
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"Layer with name {} not found in {}.\n Closest matches: {}".format( |
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l_name, str(library), close_matches |
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) |
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) |
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elif len(match) > 1: |
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close_matches = difflib.get_close_matches( |
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l_name, [x.lower() for x in all_torch_layers] |
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) |
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raise NotImplementedError( |
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"Multiple matchs for layer with name {} not found in {}.\n " |
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"All matches: {}".format(l_name, str(library), close_matches) |
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) |
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else: |
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layer_handler = getattr(library, match[0]) |
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return layer_handler |
