<s> from collections import OrderedDict <EOL> import theano . tensor as T <EOL> from . . import utils <EOL> __all__ = [ <EOL> "<STR_LIT>" , <EOL> "<STR_LIT>" , <EOL> ] <EOL> class Layer ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , incoming , name = None ) : <EOL> if isinstance ( incoming , tuple ) : <EOL> self . input_shape = incoming <EOL> self . input_layer = None <EOL> else : <EOL> self . input_shape = incoming . output_shape <EOL> self . input_layer = incoming <EOL> self . name = name <EOL> self . params = OrderedDict ( ) <EOL> self . get_output_kwargs = [ ] <EOL> if any ( d is not None and d <= <NUM_LIT:0> for d in self . input_shape ) : <EOL> raise ValueError ( ( <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" ) % ( <EOL> self . input_shape , self . name ) ) <EOL> @ property <EOL> def output_shape ( self ) : <EOL> shape = self . get_output_shape_for ( self . input_shape ) <EOL> if any ( isinstance ( s , T . Variable ) for s in shape ) : <EOL> raise ValueError ( "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" % ( self . __class__ . __name__ , shape ) ) <EOL> return shape <EOL> def get_params ( self , ** tags ) : <EOL> """<STR_LIT>""" <EOL> result = list ( self . params . keys ( ) ) <EOL> only = set ( tag for tag , value in tags . items ( ) if value ) <EOL> if only : <EOL> result = [ param for param in result <EOL> if not ( only - self . params [ param ] ) ] <EOL> exclude = set ( tag for tag , value in tags . items ( ) if not value ) <EOL> if exclude : <EOL> result = [ param for param in result <EOL> if not ( self . params [ param ] & exclude ) ] <EOL> return utils . collect_shared_vars ( result ) <EOL> def get_output_shape_for ( self , input_shape ) : <EOL> """<STR_LIT>""" <EOL> return input_shape <EOL> def get_output_for ( self , input , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> raise NotImplementedError <EOL> def add_param ( self , spec , shape , name = None , ** tags ) : <EOL> """<STR_LIT>""" <EOL> if name is not None : <EOL> if self . name is not None : <EOL> name = "<STR_LIT>" % ( self . name , name ) <EOL> param = utils . create_param ( spec , shape , name ) <EOL> tags [ '<STR_LIT>' ] = tags . get ( '<STR_LIT>' , True ) <EOL> tags [ '<STR_LIT>' ] = tags . get ( '<STR_LIT>' , True ) <EOL> self . params [ param ] = set ( tag for tag , value in tags . items ( ) if value ) <EOL> return param <EOL> class MergeLayer ( Layer ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self , incomings , name = None ) : <EOL> self . input_shapes = [ incoming if isinstance ( incoming , tuple ) <EOL> else incoming . output_shape <EOL> for incoming in incomings ] <EOL> self . input_layers = [ None if isinstance ( incoming , tuple ) <EOL> else incoming <EOL> for incoming in incomings ] <EOL> self . name = name <EOL> self . params = OrderedDict ( ) <EOL> self . get_output_kwargs = [ ] <EOL> @ Layer . output_shape . getter <EOL> def output_shape ( self ) : <EOL> shape = self . get_output_shape_for ( self . input_shapes ) <EOL> if any ( isinstance ( s , T . Variable ) for s in shape ) : <EOL> raise ValueError ( "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" <EOL> "<STR_LIT>" % ( self . __class__ . __name__ , shape ) ) <EOL> return shape <EOL> def get_output_shape_for ( self , input_shapes ) : <EOL> """<STR_LIT>""" <EOL> raise NotImplementedError <EOL> def get_output_for ( self , inputs , ** kwargs ) : <EOL> """<STR_LIT>""" <EOL> raise NotImplementedError </s>
