Python optparse.NO_DEFAULT Examples

The following are 5 code examples of optparse.NO_DEFAULT(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module optparse , or try the search function .
Example #1
Source File: config.py    From linter-pylama with MIT License 6 votes vote down vote up 
def _expand_default(self, option):
    """Patch OptionParser.expand_default with custom behaviour

    This will handle defaults to avoid overriding values in the
    configuration file.
    """
    if self.parser is None or not self.default_tag:
        return option.help
    optname = option._long_opts[0][2:]
    try:
        provider = self.parser.options_manager._all_options[optname]
    except KeyError:
        value = None
    else:
        optdict = provider.get_option_def(optname)
        optname = provider.option_attrname(optname, optdict)
        value = getattr(provider.config, optname, optdict)
        value = utils._format_option_value(optdict, value)
    if value is optparse.NO_DEFAULT or not value:
        value = self.NO_DEFAULT_VALUE
    return option.help.replace(self.default_tag, str(value))
Example #2
Source File: config.py    From python-netsurv with MIT License 6 votes vote down vote up 
def _expand_default(self, option):
    """Patch OptionParser.expand_default with custom behaviour

    This will handle defaults to avoid overriding values in the
    configuration file.
    """
    if self.parser is None or not self.default_tag:
        return option.help
    optname = option._long_opts[0][2:]
    try:
        provider = self.parser.options_manager._all_options[optname]
    except KeyError:
        value = None
    else:
        optdict = provider.get_option_def(optname)
        optname = provider.option_attrname(optname, optdict)
        value = getattr(provider.config, optname, optdict)
        value = utils._format_option_value(optdict, value)
    if value is optparse.NO_DEFAULT or not value:
        value = self.NO_DEFAULT_VALUE
    return option.help.replace(self.default_tag, str(value))
Example #3
Source File: config.py    From python-netsurv with MIT License 6 votes vote down vote up 
def _expand_default(self, option):
    """Patch OptionParser.expand_default with custom behaviour

    This will handle defaults to avoid overriding values in the
    configuration file.
    """
    if self.parser is None or not self.default_tag:
        return option.help
    optname = option._long_opts[0][2:]
    try:
        provider = self.parser.options_manager._all_options[optname]
    except KeyError:
        value = None
    else:
        optdict = provider.get_option_def(optname)
        optname = provider.option_attrname(optname, optdict)
        value = getattr(provider.config, optname, optdict)
        value = utils._format_option_value(optdict, value)
    if value is optparse.NO_DEFAULT or not value:
        value = self.NO_DEFAULT_VALUE
    return option.help.replace(self.default_tag, str(value))
Example #4
Source File: __init__.py    From luscan-devel with GNU General Public License v2.0 5 votes vote down vote up 
def call_command(name, *args, **options):
    """
    Calls the given command, with the given options and args/kwargs.

    This is the primary API you should use for calling specific commands.

    Some examples:
        call_command('syncdb')
        call_command('shell', plain=True)
        call_command('sqlall', 'myapp')
    """
    # Load the command object.
    try:
        app_name = get_commands()[name]
    except KeyError:
        raise CommandError("Unknown command: %r" % name)

    if isinstance(app_name, BaseCommand):
        # If the command is already loaded, use it directly.
        klass = app_name
    else:
        klass = load_command_class(app_name, name)

    # Grab out a list of defaults from the options. optparse does this for us
    # when the script runs from the command line, but since call_command can
    # be called programatically, we need to simulate the loading and handling
    # of defaults (see #10080 for details).
    defaults = {}
    for opt in klass.option_list:
        if opt.default is NO_DEFAULT:
            defaults[opt.dest] = None
        else:
            defaults[opt.dest] = opt.default
    defaults.update(options)

    return klass.execute(*args, **defaults)
Example #5
Source File: __init__.py    From python-compat-runtime with Apache License 2.0 5 votes vote down vote up 
def call_command(name, *args, **options):
    """
    Calls the given command, with the given options and args/kwargs.

    This is the primary API you should use for calling specific commands.

    Some examples:
        call_command('syncdb')
        call_command('shell', plain=True)
        call_command('sqlall', 'myapp')
    """
    # Load the command object.
    try:
        app_name = get_commands()[name]
        if isinstance(app_name, BaseCommand):
            # If the command is already loaded, use it directly.
            klass = app_name
        else:
            klass = load_command_class(app_name, name)
    except KeyError:
        raise CommandError("Unknown command: %r" % name)

    # Grab out a list of defaults from the options. optparse does this for us
    # when the script runs from the command line, but since call_command can
    # be called programatically, we need to simulate the loading and handling
    # of defaults (see #10080 for details).
    defaults = dict([(o.dest, o.default)
                     for o in klass.option_list
                     if o.default is not NO_DEFAULT])
    defaults.update(options)

    return klass.execute(*args, **defaults)