Unexpected keyword argument 'numThreads' when reading Java Zarr with Python

[ZigzagAwaka]

Hi,

When creating Blosc compressor with

Compressor compressor = CompressorFactory.create("blosc", "cname", "zstd", "clevel", 9, "blocksize", 0, "shuffle", 1);

A new optional parameter for Blosc "nthreads" is added into the .zarray metadata file as

"numThreads" : 1

And this is what I got when reading this Zarr with the Python API

  File "numcodecs\blosc.pyx", line 548, in numcodecs.blosc.Blosc.__init__
TypeError: __init__() got an unexpected keyword argument 'numThreads'

Since 'numThreads' is in metadata files it's not possible anymore to read the resulting Zarr using Python
It's technically a Python error, but since JZarr data has to be compatible with the Python API I think it's more of a Java issue (or did I just do something wrong ?)

[joshmoore]

Thanks for the issue, @ZigzagAwaka. #15 should solve this issue once released. (If it doesn't, please let us know)