Concatenate list to int python

In this article, you will learn how to solve TypeError:can only concatenate list (not int) to list Python error.

Lets look at a code example that produces the same error.

fruits = ["mango and orange", "pineapple", "grapes and black grapes", "banana"] buy_price = [100, 200, 300, 400] fruits_bought = [] for s in range(0, len(fruits)): if buy_price[s] > 100: fruits_bought = fruits_bought + s for o in fruits_bought: print(fruits[o])

Output

Traceback (most recent call last): File "<string>", line 6, in <module> TypeError: can only concatenate list (not "int") to list

In order to solve TypeError:can only concatenate list (not int) to list Python error you have to use theappend()method to add an item to your list. consider the example below:

fruits = ["mango and orange", "pineapple", "grapes and black grapes", "banana"] buy_price = [100, 200, 300, 400] fruits_bought = [] for s in range(0, len(fruits)): if buy_price[s] > 100: fruits_bought.append(s) for o in fruits_bought: print(fruits[o])

output

pineapple grapes and black grapes banana