#
Search the Hub

In this tutorial, you will learn how to search models, datasets and spaces on the Hub using `huggingface_hub`.

##
How to list repositories ?

`huggingface_hub` library includes an HTTP client HfApi to interact with the Hub. Among other things, it can list models, datasets and spaces stored on the Hub:

    >>> from huggingface_hub import HfApi
    >>> api = HfApi()
    >>> models = api.list_models()

The output of list_models() is an iterator over the models stored on the Hub.

Similarly, you can use list_datasets() to list datasets and list_spaces() to list Spaces.

##
How to filter repositories ?

Listing repositories is great but now you might want to filter your search. The list helpers have several attributes like:

- `filter`
- `author`
- `search`
- …

Two of these parameters are intuitive (`author` and `search`), but what about that `filter`? `filter` takes as input a ModelFilter object (or DatasetFilter). You can instantiate it by specifying which models you want to filter.

Let’s see an example to get all models on the Hub that does image classification, have been trained on the imagenet dataset and that runs with PyTorch. That can be done with a single ModelFilter. Attributes are combined as “logical AND”.

    models = hf_api.list_models(
        filter=ModelFilter(
    		task="image-classification",
    		library="pytorch",
    		trained_dataset="imagenet"
    	)
    )

While filtering, you can also sort the models and take only the top results. For example, the following example fetches the top 5 most downloaded datasets on the Hub:

    >>> list(list_datasets(sort="downloads", direction=-1, limit=5))
    [DatasetInfo(
    	id='argilla/databricks-dolly-15k-curated-en',
    	author='argilla',
    	sha='4dcd1dedbe148307a833c931b21ca456a1fc4281',
    	last_modified=datetime.datetime(2023, 10, 2, 12, 32, 53, tzinfo=datetime.timezone.utc),
    	private=False,
    	downloads=8889377,
    	(...)

To explore available filter on the Hub, visit models and datasets pages in your browser, search for some parameters and look at the values in the URL.

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