Option parser question - reading options from file as well as command line
Max Erickson
maxerickson at gmail.com
Tue May 16 16:36:50 EDT 2006
Andrew Robert <andrew.arobert at gmail.com> wrote in
news:126k6ed517nf73e at corp.supernews.com:
> Any ideas?
I don't know much about optparse, but since I was bored:
>>> help(o.parse_args)
Help on method parse_args in module optparse:
parse_args(self, args=None, values=None) method of
optparse.OptionParser instance
parse_args(args : [string] = sys.argv[1:],
values : Values = None)
-> (values : Values, args : [string])
Parse the command-line options found in 'args' (default:
sys.argv[1:]). Any errors result in a call to 'error()', which
by default prints the usage message to stderr and calls
sys.exit() with an error message. On success returns a pair
(values, args) where 'values' is an Values instance (with all
your option values) and 'args' is the list of arguments left
over after parsing options.
>>> o.parse_args('seven')
Traceback (most recent call last):
File "<pyshell#15>", line 1, in ?
o.parse_args('seven')
File "C:\bin\Python24\lib\optparse.py", line 1275, in parse_args
stop = self._process_args(largs, rargs, values)
File "C:\bin\Python24\lib\optparse.py", line 1322, in _process_args
del rargs[0]
TypeError: object doesn't support item deletion
>>>
That's the result of poking an optionParser instance in Idle.
parse_args is expecting something that looks like sys.argv[1:], which
is a list. You are passing it a string.
max
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