I know with open('foo.txt') as f: ...do something...
will close the file automatically when the "with" block ends. I also saw codes in a book: for line in open('foo.txt'): ...do something... but it didn't mention if the file will be closed automatically or not when the "for" block ends. Is there any document talking about this? and how to know if a file is in "open" or not? --Jach Fong -- https://mail.python.org/mailman/listinfo/python-list