Integration Zoo

Below is a (non-exhaustive) list of usage examples showcasing 🤗 Filesystem’s interesting integrations:

• Reading/writing a Pandas DataFrame from/to a 🤗 Hub repository:

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  >>> import pandas as pd
  
  >>> # Read a remote CSV file into a dataframe
  >>> df = pd.read_csv("hf://datasets/my-username/my-dataset-repo/train.csv")
  
  >>> # Write a dataframe to a remote CSV file
  >>> df.to_csv("hf://datasets/my-username/my-dataset-repo/test.csv")

  The same workflow can also be used for Dask and Polars DataFrames.

• Querying (remote) 🤗 Hub files with DuckDB:

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  >>> from hffs import HfFileSystem
  >>> import duckdb
  
  >>> fs = HfFileSystem()
  >>> duckdb.register_filesystem(fs)
  >>> # Query a remote file and get the result back as a dataframe
  >>> fs_query_file = "hf://datasets/my-username/my-dataset-repo/data_dir/data.parquet"
  >>> df = duckdb.query(f"SELECT * FROM '{fs_query_file}' LIMIT 10").df()

• Using 🤗 Hub as an array store with Zarr:

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  >>> import numpy as np
  >>> import zarr
  
  >>> embeddings = np.random.randn(50000, 1000).astype("float32")
  
  >>> # Write an array to a repo
  >>> with zarr.open_group("hf://my-username/my-model-repo/array-store", mode="w") as root:
  ...    foo = root.create_group("embeddings")
  ...    foobar = foo.zeros('experiment_0', shape=(50000, 1000), chunks=(10000, 1000), dtype='f4')
  ...    foobar[:] = embeddings
  
  >>> # Read an array from a repo
  >>> with zarr.open_group("hf://my-username/my-model-repo/array-store", mode="r") as root:
  ...    first_row = root["embeddings/experiment_0"][0]