Python 3.13 incompatibility: del arg_values['frame']

[jklymak]

With Python 3.13.2 and xmitgcm 0.5.2

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
Cell In[3], line 3
      1 td = '../results/StraightSlopeExpStrat002Dye/input/'
      2 td = '../results/StraightSlopeUpsidedownStrat001/input/'
----> 3 with xm.open_mdsdataset(td, iters='all', endian='<', prefix='dissipation') as ds:
      4     display(ds)
      5     ds=ds.isel(j=0, j_g=0).isel(time=-4)

File ~/Dropbox/CanyonMix/.pixi/envs/default/lib/python3.13/site-packages/xmitgcm/mds_store.py:166, in open_mdsdataset(data_dir, grid_dir, iters, prefix, read_grid, delta_t, ref_date, calendar, levels, geometry, grid_vars_to_coords, swap_dims, endian, chunks, ignore_unknown_vars, default_dtype, nx, ny, nz, llc_method, extra_metadata, extra_variables)
    164 frame = inspect.currentframe()
    165 _, _, _, arg_values = inspect.getargvalues(frame)
--> 166 del arg_values['frame']
    167 function_name = inspect.getframeinfo(frame)[2]
    169 # auto-detect whether to swap dims

ValueError: cannot remove local variables from FrameLocalsProxy

Doesn't occur for Python 3.12. Looks like python removed del for whatever arg_values is.

Thanks!