Hi, everyone!

I met trouble when I used YT-fliter part.

At first, I have tried exclude_ function, however, it said that there is no such an attribute.

The version of my YT is 3.5.0, I donnot know if it is because of the old version.

Here is the error info: 

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             File "vorfield.py", line 85, in <module>

             vort_ds=ds.exclude_inside(('boxlib','vort_z'),-1e3,1e3)

             P000 yt : [ERROR    ] 2022-01-26 17:34:53,155 AttributeError: 'BoxlibDataset' object has no attribute 'exclude_inside'

             application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

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Then I tried cut_region function, however, it said that some argument is lost and I donnot know why.

Here is the error info:

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             File "vorfield.py", line 82, in <module>

             vort_ds = ds.cut_region(['(obj["boxlib", "vort_z"] > 1e3)'])

             P000 yt : [ERROR    ] 2022-01-26 17:07:37,086 TypeError: __init__() missing 1 required positional argument: 'conditionals'

             application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

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I will be appreciate if anybody can help me!

Thank all!

He Yifeng