Python - In the code, how can we remove every ' list( ) ' in the output and only keep its content?

Question

Code: https://code.sololearn.com/c1fJ9FbtPKoG/#py

For example:
input: a,b,c
output:
[[list([]) list(['a'])]
[list(['b']) list(['a', 'b'])]
[list(['c']) list(['a', 'c'])]
[list(['b', 'c']) list(['a', 'b', 'c'])]]

VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated.

Desired output:
[ [], ['a'],
['b'], ['a', 'b'],
['c'], ['a', 'c'],
['b', 'c'], ['a', 'b', 'c'] ]

Answer 1

Benjamin Jürgens

But the desired output is one that's reshaped with 2 columns...

Answer 2

If you just print result instead of b it gives the desired output