在 Jupyter Notebook 中使用 pyplot.scatter() 会导致 Jupyter Notebook 菜单中的错误

Question

The image of the jupyter notebook menu error:

My code as follow:

[%matplotlib inline
import torch
from IPython import display
from matplotlib import pyplot as plt
import numpy as np
import random

num_inputs = 2
num_examples = 1000
true_w = [2, -3.4]
true_b = 4.2
features = torch.from_numpy(np.random.normal(0, 1, (num_examples, num_inputs)))

labels = true_w[0] * features[:, 0] + true_w[1] * features[:, 1] + true_b
labels += torch.from_numpy(np.random.normal(0, 0.01, size=labels.size()))

def use_svg_display():
    display.set_matplotlib_formats('svg')

def set_figsize(figsize=(3.5, 2.5)):
    use_svg_display()
    plt.rcParams['figure.figsize'] = figsize

set_figsize()
plt.scatter(features[:, 1].numpy(), labels.numpy(), 1);

My environment is: Windows 10, Anaconda, Python3.6. When executing the last line, this problem occured. I have looked through the Internet but have no idea what't the problem.

Answer 1

After seeing your corrected code, it looks like this is an error with the svg rendering in your matplotlib version. See this github issue about the same problem. It looks like you'll want to update your matplotlib version to 3.1.1 or revert to 3.0.3 as suggested in the post, by doing conda install matplotlib=3.0.3 in the terminal and restarting your notebook.