Split a string based on pre defined split characters

string_splitter.py

def split_string(source,splitlist):
    output = []
    atsplit = True
    for char in source:
        if char in splitlist:
            atsplit = True
        else:
            if atsplit:
                output.append(char)
                atsplit = False
            else:
                output[-1] = output[-1] + char
    return output


out = split_string("This is a test-of the,string separation-code!"," ,!-")
print out
#>>> ['This', 'is', 'a', 'test', 'of', 'the', 'string', 'separation', 'code']