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 calculate the sum of all array elements.
user
def sumall(array): 
    sum = 0
    for i in range(len(array)): 
        sum += array[i] 
    return sum
assistant