[EMAIL PROTECTED] wrote:
> > No, that affects the string printed only *after* the "usage = " string.
> > What I would like to do is insert some string *before* the "usage = "
> > string, which is right after the command I type at the command prompt.
> > So I would like to make it look like this:
>
> The example was fine (except for a typo) as far as demonstrating the
> concept. Try this corrected version:
>
> from optparse import OptionParser
>
> usage = '************ THIS IS NEWLY INSERTED STRING
> ************\nusage: %prog [options] input_file'
> parser = OptionParser(usage=usage)
> parser.print_help()
Nope. That only *nearly* does what T wants. The usage message will
still be printed immediately *after* the 'usage: ' string.
>>> parser = OptionParser(usage=usage)
>>> parser.print_help()
usage: ************ THIS IS NEWLY INSERTED STRING************
usage: lopts.py [options] input_file
options:
-h, --help show this help message and exit
I had the same problem, and in order to get something printed before
the usage message, I found one easy-ish way was to subclass the
Formatter passed in to the Parser.
IMHO, optparse does a tricky task well, but it's implemented in a hard
to follow, inflexible manner. My "favorite" pet peeve is that the
options "dictionary" it returns isn't a dict. I wound up doing this to
it to get something [I considered] useful:
o, a = parser.parse_args()
o = o.__dict__.copy()
Peace,
~Simon
--
http://mail.python.org/mailman/listinfo/python-list
