TypeError: can't multiply sequence by non-int of type 'list'

Multiplication Between a List and an Integer

Problematic Code:

 

numbers = [1, 2, 3]
result = numbers * numbers

Error Message:

 

TypeError: can't multiply sequence by non-int of type 'list'

 

Solution: To repeat the list, multiply it by an integer, or to concatenate two lists, use the + operator.

 

# Repeating the list by an integer
result = numbers * 3

# Concatenating two lists
result = numbers + numbers