Bruce>  I want to find out how many errors and warnings there were:

    Bruce>  smtpmail.exe - 0 error(s), 0 warning(s)

    Bruce>  In C/C++ that would be something like:
    Bruce>  sscanf(buffer, "smtpmail.exe - %d error(s), %d warning(s)", &errors,
    Bruce>  &warnings);

    Bruce>  It's not that I think the sscanf syntax is particularly elegant,
    Bruce>  but it sure is compact! I saw the discussion about adding scanf
    Bruce>  to Python

    Bruce>  but I need to know what people do right now when faced with this
    Bruce>  task.

This is a task often relegated to regular expressions, which probably
explains (in part) why scanf is not found in python.  You could define a
regular expression like

    errpat = re.compile(r'(?P<exe> [^\s]+)\s+-\s+'
                        r'(?P<err> \d+)\s+error\(s\),\s+'
                        r'(?P<warn> \d+)\s+warning\(s\)')

then use it to extract the program name, number of errors and number of
warnings like so:

    mat = errpat.match(line)
    if mat is not None:
        exe = mat.group('exe')
        nerrs = int(mat.group('err')
        nwarns = int(mat.group('warn')

It's not nearly as compact as a similar scanf pattern, but regular
expressions are considerably more powerful.

HTH,

-- 
Skip Montanaro (skip@pobox.com)
http://www.mojam.com/
http://www.musi-cal.com/

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