as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
generate a python script to create a list of all unique characters from a given string.
user
def uniquechars(string): 
    uniquechars = [] 
    for char in string:
        if char not in uniquechars: 
            uniquechars.append(char) 
    return uniquechars
assistant