How to join nested list of strings and get the result as new list of string?

Question

I am having nested list of strings as:

A = [[\"A\",\"B\",\"C\"],[\"A\",\"B\"]]

I am trying to join the strings in sublist to get a single l

Answer 1

You can try this:

A = [["A","B","C"],["A","B"]]
new_a = [[''.join(b)] for b in A]

Output:

[['ABC'], ['AB']]