Python Converting Strings In List To Ints And Floats

If I were to have the following list: lst = ['3', '7', 'foo', '2.6', 'bar', '8.9'] how would I convert all possible items into either ints or floats accordingly, to get lst = [3,

Solution 1:

Loop over each item and make an attempt to convert. If the conversion fail then you know it's not convertible.

deftryconvert(s):
    try:
        returnint(s)
    except ValueError:
        try:
            returnfloat(s)
        except ValueError:
            return s

lst = ['3', '7', 'foo', '2.6', 'bar', '8.9']
newlst = [tryconvert(i) for i in lst]
print(newlst)

Output:

[3, 7, 'foo', 2.6, 'bar', 8.9]