Replace

my_string = my_string.replace("ReplaceThis", "WithThis")

Add string to string, forcing a fixed length

#**************************************************************
#**************************************************************
#********** ADD FIXED LENGTH STRING TO STATUS STRING **********
#**************************************************************
#**************************************************************
#Example usage:
#   my_string = ""
#   my_string = add_fixed_length_string(my_string, "Name", 10)
#   my_string = add_fixed_length_string(my_string, "1234567890EXTRA", 10)
#   my_string = add_fixed_length_string(my_string, "Short", 10)
#   my_string will be: "Name       | 1234567890 | Short     "
def add_fixed_length_string(output_string, add_string, add_string_fixed_length):
    if output_string != "":
        output_string += " | "

    if len(add_string) < add_string_fixed_length:
        add_string = add_string.ljust(add_string_fixed_length)
    elif len(add_string) > add_string_fixed_length:
        add_string = add_string[:add_string_fixed_length]

    output_string += add_string
    return output_string