save_analysis feature failure

[ggggggggg]

I used Channels.save_analysis and Channels.load_analysis to save and load an analysis. On the same computer it worked fine. When I tried to open it on Adrika's computer then we got an error. This is probably related to pkl files (and dill pkl files) being fragile, though I did make sure we had the same version of mass2. I suspect (based on AI chat analysis) this is a polars version mismatch between the two computers, relevant because we probably stored plt.col("x")==4 or something like that inside the Channel in good_expr or similar. I don't know if we should try to assert version matching or not.

This may not be something we should try to fix, but we'll leave it up for now.

RuntimeError                                Traceback (most recent call last)
/tmp/ipykernel_256908/1049559426.py in ?()
----> 1 data1 = mass2.Channels.load_analysis(os.path.expanduser("/home/adrika/mass2/data/20251203_ch5_linescape_power_sweep

~/mass2/.mass2env/src/mass2/mass2/core/channels.py in ?(path)
    794
    795         with ZipFile(path, "r") as zf:
    796             pickle_file = "data_all.pkl"
    797             pickle_bytes = zf.read(pickle_file)
--> 798             data: Channels = dill.loads(pickle_bytes)
    799
    800             restored_channels = {}
    801             for ch_num, ch in data.channels.items():

~/mass2/.mass2env/lib/python3.10/site-packages/dill/_dill.py in ?(str, ignore, **kwds)
    307
    308     Default values for keyword arguments can be set in :mod:`dill.settings`.
    309     """
    310     file = StringIO(str)
--> 311     return load(file, ignore, **kwds)

~/mass2/.mass2env/lib/python3.10/site-packages/dill/_dill.py in ?(file, ignore, **kwds)
    293     Unpickle an object from a file.
    294
...
    305     def __setstate__(self, state: bytes) -> None:
    306         self._pyexpr = F.lit(0)._pyexpr  # Initialize with a dummy
--> 307         self._pyexpr.__setstate__(state)

RuntimeError: BindingsError: "OtherString(\"invalid value: integer `13`, expected variant index 0 <= i < 10\")"