def show(self, filter=None):
        """ Print the list of commands currently in the queue. If filter is
        given, print only commands that match the filter.
        """
        for command in self._commands:
            if command[0] is None:  # or command[1] in self._invalid_objects:
                continue  # Skip nill commands
            if filter and command[0] != filter:
                continue
            t = []
            for e in command:
                if isinstance(e, np.ndarray):
                    t.append('array %s' % str(e.shape))
                elif isinstance(e, str):
                    s = e.strip()
                    if len(s) > 20:
                        s = s[:18] + '... %i lines' % (e.count('\n')+1)
                    t.append(s)
                else:
                    t.append(e)
            print(tuple(t))
def show ( self , filter = None ) : for command in self . _commands : if command [ 0 ] is None : continue if filter and command [ 0 ] != filter : continue t = [ ] for e in command : if isinstance ( e , np . ndarray ) : t . append ( 'array %s' % str ( e . shape ) ) elif isinstance ( e , str ) : s = e . strip ( ) if len ( s ) > 20 : s = s [ : 18 ] + '... %i lines' % ( e . count ( '\n' ) + 1 ) t . append ( s ) else : t . append ( e ) print ( tuple ( t ) )
Print the list of commands currently in the queue. If filter is
        given, print only commands that match the filter.