Hi,all: There is a mistake in the Python Manuals at "5.3 Tuples and Sequences".It said: a tuple with one item is constructed by following a value with a comma (it is not sufficient to enclose a single value in parentheses). but if you type: >>> b=('hello') >>> b 'hello' No problem!? Am I right? DengWei deng@ms.shlftdc.net.cn