to_zarr(path, overwrite=True)?

[raybellwaves]

Curious if there is a way to write a zarr store and overwrite it if it already exists?

I'm familiar with overwrite=True when writing parquet files with dask

[jakirkham]

Zarr stores use the MutableMapping API, which provides a clear method. This can be called to delete all key-value pairs in the store

[raybellwaves]

In dask it looks as though it simply does fs.rm(path, recursive=True) https://github.com/dask/dask/blob/main/dask/dataframe/io/parquet/core.py#L531

I imaging @jakirkham's solution is probably more effective but I can try and put in a PR using the dask method as a first pass.

[shoyer]

You can achieve this today by explicitly passing mode='w' into to_zarr().

Per the docstring, the default behavior is mode='w-', which is "fail if exists"