if shape1[dot_axes[0][i]] != shape2[dot_axes[1][i]]:
raise Exception(" Dot incompatible layers can not be merged using dot mode")
elif mode == "concat":
input_shapes = set([list(l.output_shape).pop(concat_axis) for l in layers])
if len(input_shapes) > 1:
raise Exception(""concat" mode can only merge layers with matching output shapes except for the concat axis")
self.mode = mode
After Change
elif mode == "concat":
input_shapes = set()
for l in layers:
oshape = list(l.output_shape)
oshape.pop(concat_axis)
oshape = tuple(oshape)
input_shapes.add(oshape)
if len(input_shapes) > 1:
raise Exception(""concat" mode can only merge layers with matching output shapes except for the concat axis")
