Python实用记录(八):不同格式之间的转换

numpy转list

list_result=numpy.tolist()

list转numpy

a = np.array(b)

字符串转list

list_convert = a.split()

list转str

str_convert = ''.join(list)

str转list

test_list=list(test_str)

tensor转numpy

import torch
import numpy as np

np_data = np.arange(6).reshape((2, 3))      # The form of array
torch_data = torch.from_numpy(np_data)      # Tensor print dtype=torch.int32
tensor2numpy = torch_data.numpy()           # if torch data， then.numpy();if np_data, then torch.from_numpy(*)

print(
    '\nnumpy:', np_data,
    '\ntorch:', torch_data,
    '\ntensor2numpy:', tensor2numpy
)