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fix format type #425

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fix format type #425

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7 changes: 4 additions & 3 deletions src/compressed_tensors/compressors/model_compressors/model_compressor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -169,7 +169,7 @@ def from_pretrained_model(
cls,
model: Module,
sparsity_config: Union[SparsityCompressionConfig, str, None] = None,
quantization_format: Optional[Union[str, List[str]]] = None,
quantization_format: Optional[Union[str, CompressionFormat, List[str], List[CompressionFormat]]] = None,
) -> Optional["ModelCompressor"]:
"""
Given a pytorch model and optional sparsity and/or quantization configs,
Expand Down Expand Up @@ -203,7 +203,7 @@ def from_pretrained_model(
quantization_config=quantization_config,
transform_config=transform_config,
compression_formats=[quantization_format]
if isinstance(quantization_format, str)
if not isinstance(quantization_format, list)
else quantization_format,
)

Expand Down Expand Up @@ -315,10 +315,11 @@ def __init__(

self.quantization_compressor = {}
for format in self.compression_formats:
name = format.value if isinstance(format, CompressionFormat) else format
self.quantization_compressor[
format
] = BaseCompressor.load_from_registry(
format, config=quantization_config
name, config=quantization_config
)

# ----- used by hf quantizer ----- #
Expand Down