Ruby allows Arrays to be used as Hash key, Python doesn't

[vmedea]

I ran into an error while reading ruby data:

Traceback (most recent call last):
  File "….py", line 5, in <module>
    d = rubymarshal.reader.load(f)
  File "…/.local/lib/python3.8/site-packages/rubymarshal/reader.py", line 289, in load
    return loader.read()
  File "…/.local/lib/python3.8/site-packages/rubymarshal/reader.py", line 197, in read
    attributes = self.read_attributes()
  File "…/.local/lib/python3.8/site-packages/rubymarshal/reader.py", line 233, in read_attributes
    attr_value = self.read()
  File "…/.local/lib/python3.8/site-packages/rubymarshal/reader.py", line 125, in read
    result[key] = value
TypeError: unhashable type: 'list'

Ruby doesn't (IIRC) have a different concept of tuples and arrays. I hacked around it by adding

                if isinstance(key, list): # Workaround for non-hashable lists used as key
                    key = tuple(key)

to the reading code for TYPE_HASH. It's a bit ad-hoc but I'm not sure what a consistent fix would be.

[Lost-MSth]

Not enough. There maybe some nested lists. I use recursive method to solve it.

Well, I am not sure too.

[vmedea]

Good point, it would need a recursive solution.

[d9pouces]

Can I have a test case?