Decorators for reducing pytorch boilerplate
Project description
What is this?
Functions and decorators I found myself rewriting for every pytorch project
How do I use this?
pip install trivial-torch-tools
from trivial_torch_tools import Sequential, init
import torch.nn as nn
class Model(nn.Module):
@init.to_device()
# ^ does self.to() and defaults to GPU if available (uses default_device variable)
@init.save_and_load_methods(model_attributes=["layers"], basic_attributes=["input_shape"])
# ^ creates self.save() and self.load()
def __init__(self, input_shape=(81,81,3)):
self.input_shape = input_shape
layers = Sequential(input_shape=(81,81,3))
# ^ dynamically compute the output shape/size of layers (the nn.Linear below)
layers.add_module('conv1' , nn.Conv2d(input_shape[0], 32, kernel_size=8, stride=4, padding=0))
layers.add_module('relu1' , nn.ReLU())
layers.add_module('flatten' , nn.Flatten(start_dim=1, end_dim=-1))
layers.add_module('linear1' , nn.Linear(in_features=layers.output_size, out_features=10))
layers.add_module('sigmoid1', nn.Sigmoid())
self.layers = layers
# layers.output_size
# layers.output_shape
# layers.layer_shapes
# available tools
from trivial_torch_tools import *
core.default_device # defaults to cuda if available
core.to_tensor # aggresively converts objects to tensors
model.init.to_device(device=default_device)
model.init.save_and_load_methods(basic_attributes=[], model_attributes=[], path_attribute="path")
model.init.forward_sequential_method
model.convert_args.to_tensor()
model.convert_args.to_device()
model.convert_args.to_batched_tensor(number_of_dimensions=4) # for color images
model.convert_args.torch_tensor_from_opencv_format()
image.tensor_from_path(value)
image.pil_image_from_tensor(value)
image.torch_tensor_from_opencv_format(value)
image.opencv_tensor_from_torch_format(value)
image.opencv_array_from_pil_image(value)
OneHotifier.tensor_from_argmax(tensor) # [0.1,99,0,0,] => [0,1,0,0,]
OneHotifier.index_from_one_hot(tensor) # [0,1,0,0,] => 2
OneHotifier.index_tensor_from_onehot_batch(tensor) # [[0,1,0,0,]] => [2]
import torch
converter = OneHotifier(possible_values=[ "thing0", ('thing', 1), {"thing":2} ])
converter.to_one_hot({"thing":2}) # >>> tensor([0,0,1])
converter.from_one_hot(torch.tensor([0,0,1])) # >>> {"thing":2}
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