| # Symbolic constants for Tk | 
 |  | 
 | # Booleans | 
 | NO=FALSE=OFF=0 | 
 | YES=TRUE=ON=1 | 
 |  | 
 | # -anchor and -sticky | 
 | N='n' | 
 | S='s' | 
 | W='w' | 
 | E='e' | 
 | NW='nw' | 
 | SW='sw' | 
 | NE='ne' | 
 | SE='se' | 
 | NS='ns' | 
 | EW='ew' | 
 | NSEW='nsew' | 
 | CENTER='center' | 
 |  | 
 | # -fill | 
 | NONE='none' | 
 | X='x' | 
 | Y='y' | 
 | BOTH='both' | 
 |  | 
 | # -side | 
 | LEFT='left' | 
 | TOP='top' | 
 | RIGHT='right' | 
 | BOTTOM='bottom' | 
 |  | 
 | # -relief | 
 | RAISED='raised' | 
 | SUNKEN='sunken' | 
 | FLAT='flat' | 
 | RIDGE='ridge' | 
 | GROOVE='groove' | 
 | SOLID = 'solid' | 
 |  | 
 | # -orient | 
 | HORIZONTAL='horizontal' | 
 | VERTICAL='vertical' | 
 |  | 
 | # -tabs | 
 | NUMERIC='numeric' | 
 |  | 
 | # -wrap | 
 | CHAR='char' | 
 | WORD='word' | 
 |  | 
 | # -align | 
 | BASELINE='baseline' | 
 |  | 
 | # -bordermode | 
 | INSIDE='inside' | 
 | OUTSIDE='outside' | 
 |  | 
 | # Special tags, marks and insert positions | 
 | SEL='sel' | 
 | SEL_FIRST='sel.first' | 
 | SEL_LAST='sel.last' | 
 | END='end' | 
 | INSERT='insert' | 
 | CURRENT='current' | 
 | ANCHOR='anchor' | 
 | ALL='all' # e.g. Canvas.delete(ALL) | 
 |  | 
 | # Text widget and button states | 
 | NORMAL='normal' | 
 | DISABLED='disabled' | 
 | ACTIVE='active' | 
 |  | 
 | # Menu item types | 
 | CASCADE='cascade' | 
 | CHECKBUTTON='checkbutton' | 
 | COMMAND='command' | 
 | RADIOBUTTON='radiobutton' | 
 | SEPARATOR='separator' | 
 |  | 
 | # Selection modes for list boxes | 
 | SINGLE='single' | 
 | BROWSE='browse' | 
 | MULTIPLE='multiple' | 
 | EXTENDED='extended' | 
 |  | 
 | # Various canvas styles | 
 | PIESLICE='pieslice' | 
 | CHORD='chord' | 
 | ARC='arc' | 
 | FIRST='first' | 
 | LAST='last' | 
 | BUTT='butt' | 
 | PROJECTING='projecting' | 
 | ROUND='round' | 
 | BEVEL='bevel' | 
 | MITER='miter' | 
 |  | 
 | # Arguments to xview/yview | 
 | MOVETO='moveto' | 
 | SCROLL='scroll' | 
 | UNITS='units' | 
 | PAGES='pages' |