diff --git a/README.md b/README.md
index 0ddad037..fd529607 100755
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Python 3.7 or later with the following `pip3 install -U -r requirements.txt` pac
 
 **Start Training:** Run `train.py` to begin training after downloading COCO data with `data/get_coco_dataset.sh` and specifying COCO path on line 37 (local) or line 39 (cloud). Training runs about 1 hour per COCO epoch on a 1080 Ti.
 
-**Resume Training:** Run `train.py -resume 1` to resume training from the most recently saved checkpoint `latest.pt`.
+**Resume Training:** Run `train.py --resume` to resume training from the most recently saved checkpoint `latest.pt`.
 
 Each epoch trains on 120,000 images from the train and validate COCO sets, and tests on 5000 images from the COCO validate set. An Nvidia GTX 1080 Ti will process about 10-15 epochs/day depending on image size and augmentation (13 epochs/day at 416 pixels with default augmentation). Loss plots for the bounding boxes, objectness and class confidence should appear similar to results shown here (results in progress to 160 epochs, will update).
 
@@ -56,7 +56,7 @@ Checkpoints are saved in `/checkpoints` directory. Run `detect.py` to apply trai
 
 Run `test.py` to validate the official YOLOv3 weights `checkpoints/yolov3.weights` against the 5000 validation images. You should obtain a mAP of .581 using this repo (https://github.com/ultralytics/yolov3), compared to .579 as reported in darknet (https://arxiv.org/abs/1804.02767).
 
-Run `test.py -weights_path checkpoints/latest.pt` to validate against the latest training checkpoint.
+Run `test.py --weights checkpoints/latest.pt` to validate against the latest training checkpoint.
 
 # Contact
 
diff --git a/detect.py b/detect.py
index 2f720cd8..0bf70621 100755
--- a/detect.py
+++ b/detect.py
@@ -5,45 +5,42 @@ from models import *
 from utils.datasets import *
 from utils.utils import *
 
-cuda = torch.cuda.is_available()
-device = torch.device('cuda:0' if cuda else 'cpu')
-f_path = os.path.dirname(os.path.realpath(__file__)) + '/'
-
-parser = argparse.ArgumentParser()
-# Get data configuration
-
-parser.add_argument('-image_folder', type=str, default='data/samples', help='path to images')
-parser.add_argument('-output_folder', type=str, default='output', help='path to outputs')
-parser.add_argument('-plot_flag', type=bool, default=True)
-parser.add_argument('-txt_out', type=bool, default=False)
-
-parser.add_argument('-cfg', type=str, default=f_path + 'cfg/yolov3.cfg', help='cfg file path')
-parser.add_argument('-class_path', type=str, default=f_path + 'data/coco.names', help='path to class label file')
-parser.add_argument('-conf_thres', type=float, default=0.50, help='object confidence threshold')
-parser.add_argument('-nms_thres', type=float, default=0.45, help='iou threshold for non-maximum suppression')
-parser.add_argument('-batch_size', type=int, default=1, help='size of the batches')
-parser.add_argument('-img_size', type=int, default=32 * 13, help='size of each image dimension')
-opt = parser.parse_args()
-print(opt)
+from utils import torch_utils
 
 
-def main(opt):
-    os.system('rm -rf ' + opt.output_folder)
-    os.makedirs(opt.output_folder, exist_ok=True)
+def detect(
+        net_config_path,
+        data_config_path,
+        images_path,
+        weights_file_path='weights/yolov3.pt',
+        output='output',
+        batch_size=16,
+        img_size=416,
+        conf_thres=0.3,
+        nms_thres=0.45,
+        save_txt=False,
+        save_images=False,
+):
+
+    device = torch_utils.select_device()
+    print("Using device: \"{}\"".format(device))
+
+    os.system('rm -rf ' + output)
+    os.makedirs(output, exist_ok=True)
+
+    data_config = parse_data_config(data_config_path)
 
     # Load model
-    model = Darknet(opt.cfg, opt.img_size)
+    model = Darknet(net_config_path, img_size)
 
-    weights_path = f_path + 'weights/yolov3.pt'
-    if weights_path.endswith('.pt'):  # pytorch format
-        if weights_path.endswith('weights/yolov3.pt') and not os.path.isfile(weights_path):
-            os.system('wget https://storage.googleapis.com/ultralytics/yolov3.pt -O ' + weights_path)
-
-        checkpoint = torch.load(weights_path, map_location='cpu')
+    if weights_file_path.endswith('.pt'):  # pytorch format
+        if weights_file_path.endswith('weights/yolov3.pt') and not os.path.isfile(weights_file_path):
+            os.system('wget https://storage.googleapis.com/ultralytics/yolov3.pt -O ' + weights_file_path)
+        checkpoint = torch.load(weights_file_path, map_location='cpu')
         model.load_state_dict(checkpoint['model'])
         del checkpoint
     else:  # darknet format
-        load_weights(model, weights_path)
+        load_weights(model, weights_file_path)
 
         # current = model.state_dict()
         # saved = checkpoint['model']
@@ -59,8 +56,8 @@ def main(opt):
     model.to(device).eval()
 
     # Set Dataloader
-    classes = load_classes(opt.class_path)  # Extracts class labels from file
-    dataloader = load_images(opt.image_folder, batch_size=opt.batch_size, img_size=opt.img_size)
+    classes = load_classes(data_config['names'])  # Extracts class labels from file
+    dataloader = load_images(images_path, batch_size=batch_size, img_size=img_size)
 
     imgs = []  # Stores image paths
     img_detections = []  # Stores detections for each image index
@@ -71,10 +68,10 @@ def main(opt):
         # Get detections
         with torch.no_grad():
             pred = model(torch.from_numpy(img).unsqueeze(0).to(device))
-            pred = pred[pred[:, :, 4] > opt.conf_thres]
+            pred = pred[pred[:, :, 4] > conf_thres]
 
             if len(pred) > 0:
-                detections = non_max_suppression(pred.unsqueeze(0), opt.conf_thres, opt.nms_thres)
+                detections = non_max_suppression(pred.unsqueeze(0), conf_thres, nms_thres)
                 img_detections.extend(detections)
                 imgs.extend(img_paths)
 
@@ -91,15 +88,15 @@ def main(opt):
     for img_i, (path, detections) in enumerate(zip(imgs, img_detections)):
         print("image %g: '%s'" % (img_i, path))
 
-        if opt.plot_flag:
+        if save_images:
             img = cv2.imread(path)
 
         # The amount of padding that was added
-        pad_x = max(img.shape[0] - img.shape[1], 0) * (opt.img_size / max(img.shape))
-        pad_y = max(img.shape[1] - img.shape[0], 0) * (opt.img_size / max(img.shape))
+        pad_x = max(img.shape[0] - img.shape[1], 0) * (img_size / max(img.shape))
+        pad_y = max(img.shape[1] - img.shape[0], 0) * (img_size / max(img.shape))
         # Image height and width after padding is removed
-        unpad_h = opt.img_size - pad_y
-        unpad_w = opt.img_size - pad_x
+        unpad_h = img_size - pad_y
+        unpad_w = img_size - pad_x
 
         # Draw bounding boxes and labels of detections
         if detections is not None:
@@ -107,7 +104,7 @@ def main(opt):
             bbox_colors = random.sample(color_list, len(unique_classes))
 
             # write results to .txt file
-            results_img_path = os.path.join(opt.output_folder, path.split('/')[-1])
+            results_img_path = os.path.join(output, path.split('/')[-1])
             results_txt_path = results_img_path + '.txt'
             if os.path.isfile(results_txt_path):
                 os.remove(results_txt_path)
@@ -127,24 +124,55 @@ def main(opt):
                 x1, y1, x2, y2 = max(x1, 0), max(y1, 0), max(x2, 0), max(y2, 0)
 
                 # write to file
-                if opt.txt_out:
+                if save_txt:
                     with open(results_txt_path, 'a') as file:
                         file.write(('%g %g %g %g %g %g \n') % (x1, y1, x2, y2, cls_pred, cls_conf * conf))
 
-                if opt.plot_flag:
+                if save_images:
                     # Add the bbox to the plot
                     label = '%s %.2f' % (classes[int(cls_pred)], conf)
                     color = bbox_colors[int(np.where(unique_classes == int(cls_pred))[0])]
                     plot_one_box([x1, y1, x2, y2], img, label=label, color=color)
 
-        if opt.plot_flag:
+        if save_images:
             # Save generated image with detections
             cv2.imwrite(results_img_path.replace('.bmp', '.jpg').replace('.tif', '.jpg'), img)
 
     if platform == 'darwin':  # MacOS (local)
-        os.system('open ' + opt.output_folder)
+        os.system('open ' + output)
 
 
 if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    # Get data configuration
+
+    parser.add_argument('--image-folder', type=str, default='data/samples', help='path to images')
+    parser.add_argument('--output-folder', type=str, default='output', help='path to outputs')
+    parser.add_argument('--plot-flag', type=bool, default=True)
+    parser.add_argument('--txt-out', type=bool, default=False)
+
+    parser.add_argument('--cfg', type=str, default='cfg/yolov3.cfg', help='cfg file path')
+    parser.add_argument('--data-config', type=str, default='cfg/coco.data', help='path to data config file')
+    parser.add_argument('--conf-thres', type=float, default=0.50, help='object confidence threshold')
+    parser.add_argument('--nms-thres', type=float, default=0.45, help='iou threshold for non-maximum suppression')
+    parser.add_argument('--batch-size', type=int, default=1, help='size of the batches')
+    parser.add_argument('--img-size', type=int, default=32 * 13, help='size of each image dimension')
+    opt = parser.parse_args()
+    print(opt)
+
     torch.cuda.empty_cache()
-    main(opt)
+
+    init_seeds()
+
+    detect(
+        opt.cfg,
+        opt.data_config,
+        opt.image_folder,
+        output=opt.output_folder,
+        batch_size=opt.batch_size,
+        img_size=opt.img_size,
+        conf_thres=opt.conf_thres,
+        nms_thres=opt.nms_thres,
+        save_txt=opt.txt_out,
+        save_images=opt.plot_flag,
+    )
diff --git a/test.py b/test.py
index f65d373c..edcdc9f1 100644
--- a/test.py
+++ b/test.py
@@ -4,47 +4,45 @@ from models import *
 from utils.datasets import *
 from utils.utils import *
 
-parser = argparse.ArgumentParser(prog='test.py')
-parser.add_argument('-batch_size', type=int, default=32, help='size of each image batch')
-parser.add_argument('-cfg', type=str, default='cfg/yolov3.cfg', help='path to model config file')
-parser.add_argument('-data_config_path', type=str, default='cfg/coco.data', help='path to data config file')
-parser.add_argument('-weights_path', type=str, default='weights/yolov3.pt', help='path to weights file')
-parser.add_argument('-class_path', type=str, default='data/coco.names', help='path to class label file')
-parser.add_argument('-iou_thres', type=float, default=0.5, help='iou threshold required to qualify as detected')
-parser.add_argument('-conf_thres', type=float, default=0.3, help='object confidence threshold')
-parser.add_argument('-nms_thres', type=float, default=0.45, help='iou threshold for non-maximum suppression')
-parser.add_argument('-n_cpu', type=int, default=0, help='number of cpu threads to use during batch generation')
-parser.add_argument('-img_size', type=int, default=416, help='size of each image dimension')
-opt = parser.parse_args()
-print(opt, end='\n\n')
-
-cuda = torch.cuda.is_available()
-device = torch.device('cuda:0' if cuda else 'cpu')
+from utils import torch_utils
 
 
-def main(opt):
+def test(
+    net_config_path,
+    data_config_path,
+    weights_file_path,
+    batch_size=16,
+    img_size=416,
+    iou_thres=0.5,
+    conf_thres=0.3,
+    nms_thres=0.45,
+    n_cpus=0,
+):
+    device = torch_utils.select_device()
+    print("Using device: \"{}\"".format(device))
+
     # Configure run
-    data_config = parse_data_config(opt.data_config_path)
+    data_config = parse_data_config(data_config_path)
     nC = int(data_config['classes'])  # number of classes (80 for COCO)
     test_path = data_config['valid']
 
     # Initiate model
-    model = Darknet(opt.cfg, opt.img_size)
+    model = Darknet(net_config_path, img_size)
 
     # Load weights
-    if opt.weights_path.endswith('.pt'):  # pytorch format
-        checkpoint = torch.load(opt.weights_path, map_location='cpu')
+    if weights_file_path.endswith('.pt'):  # pytorch format
+        checkpoint = torch.load(weights_file_path, map_location='cpu')
         model.load_state_dict(checkpoint['model'])
         del checkpoint
     else:  # darknet format
-        load_weights(model, opt.weights_path)
+        load_weights(model, weights_file_path)
 
     model.to(device).eval()
 
     # Get dataloader
     # dataset = load_images_with_labels(test_path)
-    # dataloader = torch.utils.data.DataLoader(dataset, batch_size=opt.batch_size, shuffle=False, num_workers=opt.n_cpu)
-    dataloader = load_images_and_labels(test_path, batch_size=opt.batch_size, img_size=opt.img_size)
+    # dataloader = torch.utils.data.DataLoader(dataset, batch_size=batch_size, shuffle=False, num_workers=n_cpus)
+    dataloader = load_images_and_labels(test_path, batch_size=batch_size, img_size=img_size)
 
     print('%11s' * 5 % ('Image', 'Total', 'P', 'R', 'mAP'))
     outputs, mAPs, mR, mP, TP, confidence, pred_class, target_class = [], [], [], [], [], [], [], []
@@ -53,7 +51,7 @@ def main(opt):
 
         with torch.no_grad():
             output = model(imgs.to(device))
-            output = non_max_suppression(output, conf_thres=opt.conf_thres, nms_thres=opt.nms_thres)
+            output = non_max_suppression(output, conf_thres=conf_thres, nms_thres=nms_thres)
 
         # Compute average precision for each sample
         for sample_i, (labels, detections) in enumerate(zip(targets, output)):
@@ -78,7 +76,7 @@ def main(opt):
                 target_cls = labels[:, 0]
 
                 # Extract target boxes as (x1, y1, x2, y2)
-                target_boxes = xywh2xyxy(labels[:, 1:5]) * opt.img_size
+                target_boxes = xywh2xyxy(labels[:, 1:5]) * img_size
 
                 detected = []
                 for *pred_bbox, conf, obj_conf, obj_pred in detections:
@@ -89,7 +87,7 @@ def main(opt):
                     # Extract index of largest overlap
                     best_i = np.argmax(iou)
                     # If overlap exceeds threshold and classification is correct mark as correct
-                    if iou[best_i] > opt.iou_thres and obj_pred == labels[best_i, 0] and best_i not in detected:
+                    if iou[best_i] > iou_thres and obj_pred == labels[best_i, 0] and best_i not in detected:
                         correct.append(1)
                         detected.append(best_i)
                     else:
@@ -119,7 +117,7 @@ def main(opt):
     # Print mAP per class
     print('%11s' * 5 % ('Image', 'Total', 'P', 'R', 'mAP') + '\n\nmAP Per Class:')
 
-    classes = load_classes(opt.class_path)  # Extracts class labels from file
+    classes = load_classes(data_config['names'])  # Extracts class labels from file
     for i, c in enumerate(classes):
         print('%15s: %-.4f' % (c, AP_accum[i] / AP_accum_count[i]))
 
@@ -128,4 +126,30 @@ def main(opt):
 
 
 if __name__ == '__main__':
-    mAP = main(opt)
+
+    parser = argparse.ArgumentParser(prog='test.py')
+    parser.add_argument('--batch-size', type=int, default=32, help='size of each image batch')
+    parser.add_argument('--cfg', type=str, default='cfg/yolov3.cfg', help='path to model config file')
+    parser.add_argument('--data-config', type=str, default='cfg/coco.data', help='path to data config file')
+    parser.add_argument('--weights', type=str, default='weights/yolov3.pt', help='path to weights file')
+    parser.add_argument('--iou-thres', type=float, default=0.5, help='iou threshold required to qualify as detected')
+    parser.add_argument('--conf-thres', type=float, default=0.3, help='object confidence threshold')
+    parser.add_argument('--nms-thres', type=float, default=0.45, help='iou threshold for non-maximum suppression')
+    parser.add_argument('--n-cpus', type=int, default=0, help='number of cpu threads to use during batch generation')
+    parser.add_argument('--img-size', type=int, default=416, help='size of each image dimension')
+    opt = parser.parse_args()
+    print(opt, end='\n\n')
+
+    init_seeds()
+
+    mAP = test(
+        opt.cfg,
+        opt.data_config,
+        opt.weights,
+        batch_size=opt.batch_size,
+        img_size=opt.img_size,
+        iou_thres=opt.iou_thres,
+        conf_thres=opt.conf_thres,
+        nms_thres=opt.nms_thres,
+        n_cpus=opt.n_cpus,
+    )
diff --git a/train.py b/train.py
index 93ac9c96..cfe90dea 100644
--- a/train.py
+++ b/train.py
@@ -6,57 +6,59 @@ from models import *
 from utils.datasets import *
 from utils.utils import *
 
-parser = argparse.ArgumentParser()
-parser.add_argument('-epochs', type=int, default=100, help='number of epochs')
-parser.add_argument('-batch_size', type=int, default=16, help='size of each image batch')
-parser.add_argument('-data_config_path', type=str, default='cfg/coco.data', help='data config file path')
-parser.add_argument('-cfg', type=str, default='cfg/yolov3.cfg', help='cfg file path')
-parser.add_argument('-multi_scale', default=False, help='random image sizes per batch 320 - 608')
-parser.add_argument('-img_size', type=int, default=32 * 13, help='pixels')
-parser.add_argument('-resume', default=False, help='resume training flag')
-parser.add_argument('-batch_report', default=False, help='report TP, FP, FN, P and R per batch (slower)')
-parser.add_argument('-freeze_darknet53', default=False, help='freeze darknet53.conv.74 layers for first epoch')
-parser.add_argument('-var', type=float, default=0, help='optional test variable')
-opt = parser.parse_args()
-if opt.multi_scale:  # pass maximum multi_scale size
-    opt.img_size = 608
-print(opt)
+from utils import torch_utils
 
 # Import test.py to get mAP after each epoch
-sys.argv[1:] = []  # delete any train.py command-line arguments before they reach test.py
-import test  # must follow sys.argv[1:] = []
+import test
 
-cuda = torch.cuda.is_available()
-device = torch.device('cuda:0' if cuda else 'cpu')
+DARKNET_WEIGHTS_FILENAME = 'darknet53.conv.74'
+DARKNET_WEIGHTS_URL = 'https://pjreddie.com/media/files/{}'.format(
+    DARKNET_WEIGHTS_FILENAME
+)
 
-random.seed(0)
-np.random.seed(0)
-torch.manual_seed(0)
-if cuda:
-    torch.cuda.manual_seed(0)
-    torch.cuda.manual_seed_all(0)
-    if not opt.multi_scale:
+
+def train(
+    net_config_path,
+    data_config_path,
+    img_size=416,
+    resume=False,
+    epochs=100,
+    batch_size=16,
+    weights_path='weights',
+    report=False,
+    multi_scale=False,
+    freeze_backbone=True,
+    var=0,
+):
+
+    device = torch_utils.select_device()
+    print("Using device: \"{}\"".format(device))
+
+    if not multi_scale:
         torch.backends.cudnn.benchmark = True
 
-
-def main(opt):
-    os.makedirs('weights', exist_ok=True)
+    os.makedirs(weights_path, exist_ok=True)
+    latest_weights_file = os.path.join(weights_path, 'latest.pt')
+    best_weights_file = os.path.join(weights_path, 'best.pt')
 
     # Configure run
-    data_config = parse_data_config(opt.data_config_path)
+    data_config = parse_data_config(data_config_path)
     num_classes = int(data_config['classes'])
-    train_path = '../coco/trainvalno5k.txt'
+    train_path = data_config['train']
 
     # Initialize model
-    model = Darknet(opt.cfg, opt.img_size)
+    model = Darknet(net_config_path, img_size)
 
     # Get dataloader
-    dataloader = load_images_and_labels(train_path, batch_size=opt.batch_size, img_size=opt.img_size,
-                                        multi_scale=opt.multi_scale, augment=True)
+    if multi_scale:  # pass maximum multi_scale size
+        img_size = 608
+
+    dataloader = load_images_and_labels(train_path, batch_size=batch_size, img_size=img_size,
+                                        multi_scale=multi_scale, augment=True)
 
     lr0 = 0.001
-    if opt.resume:
-        checkpoint = torch.load('weights/latest.pt', map_location='cpu')
+    if resume:
+        checkpoint = torch.load(latest_weights_file, map_location='cpu')
 
         model.load_state_dict(checkpoint['model'])
         if torch.cuda.device_count() > 1:
@@ -85,9 +87,13 @@ def main(opt):
         best_loss = float('inf')
 
         # Initialize model with darknet53 weights (optional)
-        if not os.path.isfile('weights/darknet53.conv.74'):
-            os.system('wget https://pjreddie.com/media/files/darknet53.conv.74 -P weights')
-        load_weights(model, 'weights/darknet53.conv.74')
+        def_weight_file = os.path.join(weights_path, DARKNET_WEIGHTS_FILENAME)
+        if not os.path.isfile(def_weight_file):
+            os.system('wget {} -P {}'.format(
+                DARKNET_WEIGHTS_URL,
+                weights_path))
+        assert os.path.isfile(def_weight_file)
+        load_weights(model, def_weight_file)
 
         if torch.cuda.device_count() > 1:
             raise Exception('Multi-GPU not currently supported: https://github.com/ultralytics/yolov3/issues/21')
@@ -106,7 +112,7 @@ def main(opt):
     mean_recall, mean_precision = 0, 0
     print('%11s' * 16 % (
         'Epoch', 'Batch', 'x', 'y', 'w', 'h', 'conf', 'cls', 'total', 'P', 'R', 'nTargets', 'TP', 'FP', 'FN', 'time'))
-    for epoch in range(opt.epochs):
+    for epoch in range(epochs):
         epoch += start_epoch
 
         # Update scheduler (automatic)
@@ -121,7 +127,7 @@ def main(opt):
             g['lr'] = lr
 
         # Freeze darknet53.conv.74 layers for first epoch
-        if opt.freeze_darknet53:
+        if freeze_backbone is not False:
             if epoch == 0:
                 for i, (name, p) in enumerate(model.named_parameters()):
                     if int(name.split('.')[1]) < 75:  # if layer < 75
@@ -146,7 +152,7 @@ def main(opt):
                     g['lr'] = lr
 
             # Compute loss, compute gradient, update parameters
-            loss = model(imgs.to(device), targets, batch_report=opt.batch_report, var=opt.var)
+            loss = model(imgs.to(device), targets, batch_report=report, var=var)
             loss.backward()
 
             # accumulated_batches = 1  # accumulate gradient for 4 batches before stepping optimizer
@@ -159,7 +165,7 @@ def main(opt):
             for key, val in model.losses.items():
                 rloss[key] = (rloss[key] * ui + val) / (ui + 1)
 
-            if opt.batch_report:
+            if report:
                 TP, FP, FN = metrics
                 metrics += model.losses['metrics']
 
@@ -176,7 +182,7 @@ def main(opt):
                     mean_recall = recall[k].mean()
 
             s = ('%11s%11s' + '%11.3g' * 14) % (
-                '%g/%g' % (epoch, opt.epochs - 1), '%g/%g' % (i, len(dataloader) - 1), rloss['x'],
+                '%g/%g' % (epoch, epochs - 1), '%g/%g' % (i, len(dataloader) - 1), rloss['x'],
                 rloss['y'], rloss['w'], rloss['h'], rloss['conf'], rloss['cls'],
                 rloss['loss'], mean_precision, mean_recall, model.losses['nT'], model.losses['TP'],
                 model.losses['FP'], model.losses['FN'], time.time() - t1)
@@ -193,19 +199,32 @@ def main(opt):
                       'best_loss': best_loss,
                       'model': model.state_dict(),
                       'optimizer': optimizer.state_dict()}
-        torch.save(checkpoint, 'weights/latest.pt')
+        torch.save(checkpoint, latest_weights_file)
 
         # Save best checkpoint
         if best_loss == loss_per_target:
-            os.system('cp weights/latest.pt weights/best.pt')
+            os.system('cp {} {}'.format(
+                latest_weights_file,
+                best_weights_file,
+            ))
 
         # Save backup weights every 5 epochs
         if (epoch > 0) & (epoch % 5 == 0):
-            os.system('cp weights/latest.pt weights/backup' + str(epoch) + '.pt')
+            backup_file_name = 'backup{}.pt'.format(epoch)
+            backup_file_path = os.path.join(weights_path, backup_file_name)
+            os.system('cp {} {}'.format(
+                latest_weights_file,
+                backup_file_path,
+            ))
 
         # Calculate mAP
-        test.opt.weights_path = 'weights/latest.pt'
-        mAP, R, P = test.main(test.opt)
+        mAP, R, P = test.test(
+            net_config_path,
+            data_config_path,
+            latest_weights_file,
+            batch_size=batch_size,
+            img_size=img_size,
+        )
 
         # Write epoch results
         with open('results.txt', 'a') as file:
@@ -217,5 +236,35 @@ def main(opt):
 
 
 if __name__ == '__main__':
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--epochs', type=int, default=100, help='number of epochs')
+    parser.add_argument('--batch-size', type=int, default=16, help='size of each image batch')
+    parser.add_argument('--data-config', type=str, default='cfg/coco.data', help='path to data config file')
+    parser.add_argument('--cfg', type=str, default='cfg/yolov3.cfg', help='cfg file path')
+    parser.add_argument('--multi-scale', default=False, help='random image sizes per batch 320 - 608')
+    parser.add_argument('--img-size', type=int, default=32 * 13, help='pixels')
+    parser.add_argument('--weights-path', type=str, default='weights', help='path to store weights')
+    parser.add_argument('--resume', action='store_true', help='resume training flag')
+    parser.add_argument('--report', action='store_true', help='report TP, FP, FN, P and R per batch (slower)')
+    parser.add_argument('--freeze', action='store_true', help='freeze darknet53.conv.74 layers for first epoche')
+    parser.add_argument('--var', type=float, default=0, help='optional test variable')
+    opt = parser.parse_args()
+    print(opt, end='\n\n')
+
+    init_seeds()
+
     torch.cuda.empty_cache()
-    main(opt)
+    train(
+        opt.cfg,
+        opt.data_config,
+        img_size=opt.img_size,
+        resume=opt.resume,
+        epochs=opt.epochs,
+        batch_size=opt.batch_size,
+        weights_path=opt.weights_path,
+        report=opt.report,
+        multi_scale=opt.multi_scale,
+        freeze_backbone=opt.freeze,
+        var=opt.var,
+    )
diff --git a/utils/gcp.sh b/utils/gcp.sh
old mode 100644
new mode 100755
index 3e27c169..32647259
--- a/utils/gcp.sh
+++ b/utils/gcp.sh
@@ -4,28 +4,28 @@
 sudo rm -rf yolov3 && git clone https://github.com/ultralytics/yolov3 && cd yolov3 && python3 train.py
 
 # Resume
-python3 train.py -resume 1
+python3 train.py --resume
 
 # Detect
 gsutil cp gs://ultralytics/yolov3.pt yolov3/weights
 python3 detect.py
 
 # Test
-python3 test.py -img_size 416 -weights_path weights/latest.pt
+python3 test.py --img_size 416 --weights weights/latest.pt
 
 # Test Darknet
-python3 test.py -img_size 416 -weights_path ../darknet/backup/yolov3.backup
+python3 test.py --img_size 416 --weights ../darknet/backup/yolov3.backup
 
 # Download and Test
 sudo rm -rf yolov3 && git clone https://github.com/ultralytics/yolov3 && cd yolov3
 wget https://pjreddie.com/media/files/yolov3.weights -P weights
-python3 test.py -img_size 416 -weights_path weights/backup5.pt -nms_thres 0.45
+python3 test.py --img_size 416 --weights weights/backup5.pt --nms_thres 0.45
 
 # Download and Resume
 sudo rm -rf yolov3 && git clone https://github.com/ultralytics/yolov3 && cd yolov3
 wget https://storage.googleapis.com/ultralytics/yolov3.pt -O weights/latest.pt
-python3 train.py -img_size 416 -batch_size 16 -epochs 1 -resume 1
-python3 test.py -img_size 416 -weights_path weights/latest.pt -conf_thres 0.5
+python3 train.py --img_size 416 --batch_size 16 --epochs 1 --resume
+python3 test.py --img_size 416 --weights weights/latest.pt --conf_thres 0.5
 
 # Copy latest.pt to bucket
 gsutil cp yolov3/weights/latest.pt gs://ultralytics
@@ -36,6 +36,6 @@ wget https://storage.googleapis.com/ultralytics/latest.pt
 
 # Testing
 sudo rm -rf yolov3 && git clone https://github.com/ultralytics/yolov3 && cd yolov3
-python3 train.py -epochs 3 -var 64
+python3 train.py --epochs 3 --var 64
 sudo shutdown
 
diff --git a/utils/torch_utils.py b/utils/torch_utils.py
new file mode 100644
index 00000000..58bf5ff4
--- /dev/null
+++ b/utils/torch_utils.py
@@ -0,0 +1,23 @@
+import torch
+
+
+def check_cuda():
+    return torch.cuda.is_available()
+
+
+CUDA_AVAILABLE = check_cuda()
+
+
+def init_seeds(seed=0):
+    torch.manual_seed(seed)
+    if CUDA_AVAILABLE:
+        torch.cuda.manual_seed(seed)
+        torch.cuda.manual_seed_all(seed)
+
+
+def select_device(force_cpu=False):
+    if force_cpu:
+        device = torch.device('cpu')
+    else:
+        device = torch.device('cuda:0' if CUDA_AVAILABLE else 'cpu')
+    return device
diff --git a/utils/utils.py b/utils/utils.py
index 6fcf5fac..12d161bd 100755
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -5,11 +5,19 @@ import numpy as np
 import torch
 import torch.nn.functional as F
 
+from utils import torch_utils
+
 # Set printoptions
 torch.set_printoptions(linewidth=1320, precision=5, profile='long')
 np.set_printoptions(linewidth=320, formatter={'float_kind': '{:11.5g}'.format})  # format short g, %precision=5
 
 
+def init_seeds(seed=0):
+    random.seed(seed)
+    np.random.seed(seed)
+    torch_utils.init_seeds(seed=seed)
+
+
 def load_classes(path):
     """
     Loads class labels at 'path'