#NEWLINE# def make_command_line( predictions = '/dev/stdout' , quiet = True , save_resume = True , q_colon = None , **kwargs ) : #NEWLINE# #INDENT# "Construct a command line for VW, with each named argument corresponding\n    to a VW option.\n    Single character keys are mapped to single-dash options,\n    e.g. 'b=20' yields '-b 20',\n    while multiple character keys map to double-dash options:\n        'quiet=True' yields '--quiet'\n    Boolean values are interpreted as flags: present if True, absent if False.\n    All other values are treated as option arguments, as in the -b example above.\n    If an option argument is a list, that option is repeated multiple times,\n    e.g. 'q=['ab', 'bc']' yields '-q ab -q bc'\n\n    q_colon is handled specially, mapping to '--q:'.\n\n    Run 'vw -h' for a listing of most options.\n\n    Defaults are well-suited for use with Wabbit Wappa:\n    vw --predictions /dev/stdout --quiet --save_resume\n\n    NOTE: This function makes no attempt to validate the inputs or\n    ensure they are compatible with Wabbit Wappa.\n\n    Outputs a command line string.\n    " #NEWLINE# args = [ 'vw' ] #NEWLINE# if q_colon : #NEWLINE# #INDENT# kwargs [ 'q:' ] = command #NEWLINE# #UNINDENT# kwargs [ 'predictions' ] = predictions #NEWLINE# kwargs [ 'quiet' ] = quiet #NEWLINE# kwargs [ 'save_resume' ] = save_resume #NEWLINE# for ( key , value ) in kwargs . items ( ) : #NEWLINE# #INDENT# if ( len ( key ) == 1 ) : #NEWLINE# #INDENT# option = '-{}' . format ( key ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# option = '--{}' . format ( key ) #NEWLINE# #UNINDENT# if ( value is True ) : #NEWLINE# #INDENT# arg_list = [ option ] #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# if isinstance ( value , basestring ) : #NEWLINE# #INDENT# arg_list = [ '{} {}' . format ( option , value ) ] #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# if hasattr ( value , '__getitem__' ) : #NEWLINE# #INDENT# arg_list = [ '{} {}' . format ( option , subvalue ) for subvalue in value ] #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# arg_list = [ '{} {}' . format ( option , value ) ] #NEWLINE# #UNINDENT# #UNINDENT# #UNINDENT# args . extend ( arg_list ) #NEWLINE# #UNINDENT# command = ' ' . join ( args ) #NEWLINE# return command