Ethanfel
6bc3fd6443
Pure PyTorch SelVA source for SelvaModelLoader/FeatureExtractor/Sampler nodes. Imports rewritten from selva.* to selva_core.*. mel_converter.py: replaced librosa.filters.mel with pure-numpy implementation to avoid librosa→numba→NumPy version incompatibility in some ComfyUI environments. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
import importlib
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from typing import Optional
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from omegaconf import DictConfig, OmegaConf
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def instantiate_from_config(target: str, params: Optional[dict] = None):
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"""
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Instantiate an object from a dotted path `target` and keyword `params`.
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Common name: instantiate_from_config
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"""
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if not target or not isinstance(target, str):
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raise ValueError(f"Invalid target: {target!r}")
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params = {} if params is None else params
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# Convert OmegaConf DictConfig to plain dict if needed
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try:
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if isinstance(params, DictConfig):
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params = OmegaConf.to_container(params, resolve=True)
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except Exception:
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pass
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try:
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module_path, attr_name = target.rsplit('.', 1)
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except ValueError as e:
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raise ValueError(f"Target must be like 'pkg.mod.Class', got {target!r}") from e
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try:
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module = importlib.import_module(module_path)
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except ModuleNotFoundError as e:
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raise ModuleNotFoundError(f"Could not import module '{module_path}' for target '{target}'.") from e
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try:
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obj = getattr(module, attr_name)
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except AttributeError as e:
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raise AttributeError(f"Module '{module_path}' has no attribute '{attr_name}' (from '{target}').") from e
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if not callable(obj):
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raise TypeError(f"Resolved target '{target}' is not callable.")
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return obj(**dict(params)) |