pkbar 0.2.1

Keras Progress Bar for PyTorch

pkbar

Keras style progressbar for pytorch (PK Bar)

1. show

• pkbar.Pbar (progress bar)

loading and processing dataset
10/10  [==============================] - 1.0s

• pkbar.Kbar (keras bar)

Epoch: 1/3
100/100 [========] - 10s 102ms/step - loss: 3.7782 - rmse: 1.1650 - val_loss: 0.1823 - val_rmse: 0.4269
Epoch: 2/3
100/100 [========] - 10s 101ms/step - loss: 0.1819 - rmse: 0.4265 - val_loss: 0.1816 - val_rmse: 0.4261
Epoch: 3/3
100/100 [========] - 10s 101ms/step - loss: 0.1813 - rmse: 0.4258 - val_loss: 0.1810 - val_rmse: 0.4254

2. Install

pip install pkbar

3. Usage

• pkbar.Pbar (progress bar)

import pkbar
import time

pbar = pkbar.Pbar(name='loading and processing dataset', target=10)

for i in range(10):
    time.sleep(0.1)
    pbar.update(i)

loading and processing dataset
10/10  [==============================] - 1.0s

• pkbar.Kbar (keras bar) for a concreate example

import pkbar
import torch

# training loop
train_per_epoch = num_of_batches_per_epoch

for epoch in range(num_epochs):

    print('Epoch: %d/%d' % (epoch + 1, num_epochs))
    kbar = pkbar.Kbar(target=train_per_epoch, width=8)

    # training
    for i in range(train_per_epoch):
        outputs = model(inputs)
        train_loss = criterion(outputs, targets)
        train_rmse = torch.sqrt(train_loss).detach().cpu().numpy()
        optimizer.zero_grad()
        train_loss.backward()
        optimizer.step()

        kbar.update(i, values=[("loss", train_loss.detach().cpu().numpy()), ("rmse", train_rmse)])

    # validation
    outputs = model(inputs)
    val_loss = criterion(outputs, targets)
    val_rmse = torch.sqrt(val_loss).detach().cpu().numpy()

    kbar.add(1, values=[("loss", train_loss.detach().cpu().numpy()), ("rmse", train_rmse),
                        ("val_loss", val_loss.detach().cpu().numpy()), ("val_rmse", val_rmse)])

Epoch: 1/3
100/100 [========] - 10s 102ms/step - loss: 3.7782 - rmse: 1.1650 - val_loss: 0.1823 - val_rmse: 0.4269
Epoch: 2/3
100/100 [========] - 10s 101ms/step - loss: 0.1819 - rmse: 0.4265 - val_loss: 0.1816 - val_rmse: 0.4261
Epoch: 3/3
100/100 [========] - 10s 101ms/step - loss: 0.1813 - rmse: 0.4258 - val_loss: 0.1810 - val_rmse: 0.4254

4. Acknowledge

Keras progbar's code from tf.keras.utils.Progbar