description = 'Manage servers', # main description for help
epilog = 'Tested on Solaris and Linux') # displayed after help
parser.add_argument('action', # argument name
- choices = ['deploy', 'start', 'stop'], # one of four allowed values
+ choices = ['deploy', 'start', 'stop'], # one of 3 allowed values
help = 'action on each target') # help msg
parser.add_argument('targets',
metavar = 'HOSTNAME', # var name used in help msg
nargs = '+', # require 1 or more targets
help = 'url for target machines') # help msg explanation
parser.add_argument('-u', '--user', # -u or --user option
- required = True, # make this a required argument
+ required = True, # make it a required argument
help = 'login as user')
Example of calling the parser on a command string::
the bodies of requests and responses.
The *native strings* are always of type :class:`str` but are restricted to code
-points between *u0000* through *u00FF* which are translatable to bytes using
+points between *U+0000* through *U+00FF* which are translatable to bytes using
*Latin-1* encoding. These strings are used for the keys and values in the
environ dictionary and for response headers and statuses in the
:func:`start_response` function. They must follow :rfc:`2616` with respect to