On 9/2/2015 6:04 AM, Victor Hooi wrote:
I'm using grouper() to iterate over a textfile in groups of lines:def grouper(iterable, n, fillvalue=None): "Collect data into fixed-length chunks or blocks" # grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx args = [iter(iterable)] * n return zip_longest(fillvalue=fillvalue, *args) However, I'd also like to know the line-number that I'm up to, for printing out in informational or error messages. Is there a way to use enumerate with grouper to achieve this?
Without a runnable test example, it is hard to be sure what you want. However, I believe replacing 'iter(iterable)' with 'enumerate(iterable, 1)', and taking into account that you will get (line_number, line) tuples instead of lines, will do what you want.
-- Terry Jan Reedy -- https://mail.python.org/mailman/listinfo/python-list
