from __future__ import print_function
import torch
import torch.nn as nn
import torch.nn.functional as F
import torch.optim as optim
import torchvision
from torchvision import datasets, transforms
import torchvision.models as models
import matplotlib.pyplot as plt
import numpy as np


class ModuleBase(nn.Module):
    def __init__(self):
        super(ModuleBase, self).__init__()

    def SetConvRequiresGrad(self, layer, requiregrad):
      self.features[layer].weight.requires_grad = requiregrad
      b = self.features[layer].bias
      if b != None:
        self.features[layer].bias.requires_grad = requiregrad
        
    def ForwardLayer(self, x, layer=0):
        if layer < 0:
            return x
        layers = self.features[0:layer+1]
        x = layers(x)
        return x
    
    def PrintLayer(self):
        names = []
        i = 0
        for l in self.features:
            names.append(str(i)+' : '+str(l))
            i = i+1
        return names