Test program returns int (I want int) and real one returns tuple (not wanted)

[chesschaser]

WooHoo! The code partially works!

class SearchWin:
    def searchList(self):
        content = self.searchTerms.get()
        next_index = 0
        elements = int(itemslist.size())
        for i in range(0, elements):
            if content in itemslist.get(next_index):
                itemslist.select_set(next_index)
                break
            else:
                if next_index <= elements:
                    next_index += 1
                    continue
                else:
                    messagebox.showerror("Item not found", "No item could be found containing " + "'" + content + "'")
            
    def __init__(self):
        searchPrompt = Tk()
        searchPrompt.title("Search list")
        #searchPrompt.iconbitmap("feather.ico")
        searchPrompt.resizable(0, 0)

        searchText = Label(searchPrompt, text = "Search terms")
        searchText.pack()

        Label(searchPrompt).pack()

        self.searchTerms = Entry(searchPrompt, width = 30)
        self.searchTerms.pack(padx = 10)

        Label(searchPrompt).pack()

        searchbtn = Button(searchPrompt, text = "Search", command = self.searchList)
        searchbtn.pack()

Glitches:

1. Messagebox not displayed (line 15) when item not found
2. Not all items that contain the search term are highlighted

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3. Forgot. Item 3 highlights item 1 (not sure)