python - How to convert string to decimal in this list of lists?

Question

I'm trying to convert the strings in this list of lists into decimal form:

ask = [['31188.28758860', 2], ['31183.48445986', 0.14258435], ...]

I tried using elem.strip('"') for elem in ask to remove the quote marks but get "AttributeError: 'list' object has no attribute 'strip'" So I assume I am not accessing the nested level of the strings

question from:https://stackoverflow.com/questions/65917096/how-to-convert-string-to-decimal-in-this-list-of-lists

Answer 1

[float(elem[0]) for elem in ask]

to just get the first values of your nested list.

OR

[[float(elem[0]), elem[1]] for elem in ask]

to get the same structure than before, but with the strings replaced by floats.