[Python] Where to import the models DeepSeek VL from?

Discussão em 'Python' iniciado por Stack, Abril 28, 2025.

  1. Stack

    Stack Membro Participativo

    I am trying to run the DeepSeek VL2 model (tiny version) locally and use the following code found on Huggingface:

    import torch
    from transformers import AutoModelForCausalLM

    from deepseek_vl.models import DeepseekVLV2Processor, DeepseekVLV2ForCausalLM
    from deepseek_vl.utils.io import load_pil_images


    # specify the path to the model
    model_path = "deepseek-ai/deepseek-vl2-tiny" # replaced 'small' with 'tiny'
    vl_chat_processor: DeepseekVLV2Processor = DeepseekVLV2Processor.from_pretrained(model_path)
    tokenizer = vl_chat_processor.tokenizer

    vl_gpt: DeepseekVLV2ForCausalLM = AutoModelForCausalLM.from_pretrained(model_path, trust_remote_code=True)
    vl_gpt = vl_gpt.to(torch.bfloat16).cuda().eval()

    ## single image conversation example
    conversation = [
    {
    "role": "<|User|>",
    "content": "<image>\n<|ref|>The giraffe at the back.<|/ref|>.",
    "images": ["./images/visual_grounding.jpeg"],
    },
    {"role": "<|Assistant|>", "content": ""},
    ]

    # load images and prepare for inputs
    pil_images = load_pil_images(conversation)
    prepare_inputs = vl_chat_processor(
    conversations=conversation,
    images=pil_images,
    force_batchify=True,
    system_prompt=""
    ).to(vl_gpt.device)

    # run image encoder to get the image embeddings
    inputs_embeds = vl_gpt.prepare_inputs_embeds(**prepare_inputs)

    # run the model to get the response
    outputs = vl_gpt.language_model.generate(
    inputs_embeds=inputs_embeds,
    attention_mask=prepare_inputs.attention_mask,
    pad_token_id=tokenizer.eos_token_id,
    bos_token_id=tokenizer.bos_token_id,
    eos_token_id=tokenizer.eos_token_id,
    max_new_tokens=512,
    do_sample=False,
    use_cache=True
    )

    answer = tokenizer.decode(outputs[0].cpu().tolist(), skip_special_tokens=True)
    print(f"{prepare_inputs['sft_format'][0]}", answer)


    However, I am unable to import

    from deepseek_vl.models import DeepseekVLV2Processor, DeepseekVLV2ForCausalLM
    from deepseek_vl.utils.io import load_pil_images


    I tried to install deepseek_vl through pip but the packages listed there with a similar name seem to be something completely different. Then I thought it might be required to download the DeepSeek-VL repository from Github. But the repository does not contain classes named DeepseekVLV2Processor or DeepseekVLV2ForCausalLM in the models directory. The load_pil_images function can be found under utils.io though.

    I know that the Installation gudieline on Huggingface states that the dependencies are to be installed through pip install -e .. But when do I have to run this command? After downloading the repository? Obviously, since I am new to running such models locally, I must be doing something completely wrong. How am I supposed to run the code above and to import the requirements correctly?

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