在使用 Python 时,如果遇到了 NameError: global name 'control_queue' is not defined 的错误,通常是因为尝试访问一个尚未定义的全局变量。这种情况常见于多线程或多进程编程中,因为不同线程或进程可能无法访问彼此的局部变量。 在下面示例的代码中,control_queue 变量在函数 halt_listener 中被使用,但是它并没有...
272 input() error - NameError: name '...' is not defined 1249 How do you test that a Python function throws an exception? 397 NameError: global name 'xrange' is not defined in Python 3 244 NameError: name 'reduce' is not defined in Python 694 How to "test" NoneType in python?
foriinrange(x):print(i) In this example, an undefined variablexis used in therange()function, throwing theNameError: name 'x' is not definederror: Traceback (most recent call last): File "test.py", line 1, in <module> for i in range(x): NameError: name 'x' is not defined H...
import pandas as pd import csv from sklearn import datasets dataset = datasets.load_wine()` from sklearn.model_selection import train_test_split X = dataset['data'] y = dataset['target'] x_train , x_test , y_train , y_test = train_test_split(x , y , test_size = 0.25 , rando...
在上面的代码中,x从未定义。...为了更好地说明这一点,让我们只运行 print(x)行,这将输出:NameError: name 'x' is not defined 当我们有 try … except块时,Python 会看到 x...也可以指定要注意的错误。让我们坚持我们所知道的(在本例中是NameError)。...other than aNameErrorwent wrong") ...
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42) #split into training and testing set 80/20 ratio NameError: name 'train_test_split' is not defined Unsure of how to proceed, any direction or input would be much appreciated. Thank you, ...
在编程与机器学习领域,数据集划分是一项关键任务,它可以帮助我们在训练模型时进行验证和测试。而train_test_split函数就是用来实现这一目的的工具。然而,在实际应用中,我们可能会遇到name 'train_test_split' is not defined这样的错误。这通常意味着我们还未导入相应的模块或函数。
2 x_test = x_test.reshape(x_test.shape[0], image_size, image_size, 1).astype('float32') 3 4 x_train /= 255.0 5 x_test /= 255.0 NameError: name 'x_train' is not defined Contributor shadiakiki1986commentedApr 12, 2019via email ...
Using Python 3.x. When running the test case for the following code, I get the error -NameError: name 'TEST_VAR' is not defined. I am attaching the file to test, the yaml file the code is reading, and the unit test file.