how can i use loop to convert number of seasons from string to int and then take the number and assi-CodePudding

shows = [
["The Imperfects", "Science Fiction", "1", "entertaining"],
["Devil in Ohio", "Thriller", "1", "spooky"],
["The Crown", "Historical Drama", "4", "Powerful"],
["Narco-Saints", "Thriller", "1", "Entertaining"],
["In the Dark", "Crime Drama", "4", "intriguing"]]

how do i use loop to change the number of seasons from string to int and place it back into original spot in list?

CodePudding user response：

Iterate over the list of lists. For each sub-list, enumerate its elements and try to convert to int. If it succeeds, replace the original value

shows = [
    ["The Imperfects", "Science Fiction", "1", "entertaining"],
    ["Devil in Ohio", "Thriller", "1", "spooky"],
    ["The Crown", "Historical Drama", "4", "Powerful"],
    ["Narco-Saints", "Thriller", "1", "Entertaining"],
    ["In the Dark", "Crime Drama", "4", "intriguing"]]

for show in shows:
    for i, e in enumerate(show):
        try:
            show[i] = int(e)
        except ValueError:
            pass

print(shows)

Output:

[['The Imperfects', 'Science Fiction', 1, 'entertaining'], ['Devil in Ohio', 'Thriller', 1, 'spooky'], ['The Crown', 'Historical Drama', 4, 'Powerful'], ['Narco-Saints', 'Thriller', 1, 'Entertaining'], ['In the Dark', 'Crime Drama', 4, 'intriguing']]

Alternative:

If you know that the value you want to convert is at index 2 and that it's always going to be a string representation of an integer then it's even simpler:

for show in shows:
    show[2] = int(show[2])

CodePudding user response：

If your integer is always at the same place you could use this list comprehension:

new_shows = [[elem if index != 2 else int(elem) for index, elem in enumerate(show)] for show in shows]