NameError: name 'stem_net' is not defined报错了

这个错误通常是因为在代码中使用了未定义的变量或函数。在这种情况下，'stem_net'变量没有被定义，因此Python无法识别它。要解决这个问题，您需要确保在使用变量或函数之前先定义它们。您还可以检查变量或函数的拼写是否正确，以及它们是否在正确的作用域内定义。如果您正在使用模块，请确保已正确导入模块。如果您能提供更多的上下文和代码，我可以更好地帮助您解决这个问题。

相关问题

name stem is not defined

As an AI language model, I can provide a definition of "stem" for you:

The stem is the part of a word that remains after removing any prefixes or suffixes. It is the core or base of the word that carries its essential meaning. For example, in the word "unhappy," the stem is "happy," and the prefix "un-" changes the meaning to indicate the opposite. Similarly, in the word "running," the stem is "run," and the suffix "-ing" indicates that the action is happening in the present continuous tense.

AttributeError: 'AxesSubplot' object has no attribute 'get_stem_lines'

非常抱歉，我之前给出的代码有误。实际上，`AxesSubplot`对象没有直接的方法来获取stem图对象。但是，您可以通过检查`AxesSubplot`对象的`lines`属性来获取所有的线条对象，并从中筛选出stem图对象。以下是修改后的示例代码：

import matplotlib.pyplot as plt

# 创建一个示例图形
fig, ax = plt.subplots()
x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 4, 2]
ax.stem(x, y)

# 获取当前Axes对象中的所有线条对象
lines = ax.lines

# 筛选出stem图对象
stem_lines = [line for line in lines if line.get_marker() == '|']

# 打印所有stem图对象
for line in stem_lines:
    print(line)

plt.show()

这样，您将能够获取当前Axes对象中的所有stem图对象。希望这次能够帮助到您，对之前的回答中的错误表示歉意。如果还有其他问题，请随时提问。