Question

我有一个import copy original = [[1]] a = original[:] b = list(original) c = copy.copy(original) original[0][0] = 2 print(a) # [[2]] print(b) # [[2]] print(c) # [[2]]对象，其中包含一个包含数据的数组，当它在对象上进行迭代并尝试保存数据时...它会清零并且没有任何内容被保存。

笔记本代码

Filter

在Jupyter Notebook中运行的输出

valid = filter(None, results)
print(results)
filenames = [x[0] for x in valid]
samples = [x[1] for x in valid]
durations = [x[2] for x in valid]
print(samples)
samples = np.asarray(samples)
np.savetxt(join(data_root, 'filenames.txt'), filenames, fmt='%s')
np.savetxt(join(data_root, 'durations.txt'), durations, fmt='%i')
%time np.save(join(data_root, 'samples.npy'), samples)
print('Saved', len(list(valid)), 'samples')

我所有进入[('data/drums/samples/anywhereyougo_1.2sec.wav', array([-0.00331263, -0.00248447, 0.00124224, ..., 0. , -0.00207039, -0.00455487], dtype=float32), 58576), ('data/drums/samples/anywhereyougo_2.8sec.wav', array([ 0. , 0.00041356, 0. , ..., 0. , 0.00041356, -0.00041356], dtype=float32), 136053)] [] CPU times: user 362 µs, sys: 205 µs, total: 567 µs Wall time: 612 µs Saved 0 samples的内容如下：

samples.npy

我假设这是一个空的num py数组..刚开始使用numpy

Answer 1

所以在查看非iPython解释器中的原始代码后

重新安排的事情：

samples = []
filenames = []
durations = []
sample_total = 0

valid = filter(None, results)
for x in enumerate(valid):
    filenames.append(x[1][0])
    samples.append(x[1][1])
    durations.append(x[1][2])
    sample_total = x[0] + 1

samples = np.asarray(samples)

np.savetxt(join(data_root, 'filenames.txt'), filenames, fmt='%s')
np.savetxt(join(data_root, 'durations.txt'), durations, fmt='%i')
%time np.save(join(data_root, 'samples.npy'), samples)

print("Saved " + str(sample_total) + " samples")

ipython3 numpy数组没有保存

笔记本代码

在Jupyter Notebook中运行的输出

1 个答案: