NameError: name 'variable_name' is not defined是一个常见的 Python 错误,通常是由于变量未定义或拼写错误引起的。通过仔细检查代码、确保变量在使用前已定义、注意变量的作用域以及使用调试工具,你可以有效地解决这个问题。
【Python】已解决报错:NameError: name ‘xxx‘ is not defined pythonnameerror变量函数作用域 在Python编程中,NameError 是一种常见的错误,它发生在尝试访问一个未被定义的变量时。 程序员洲洲 2024/06/13 1.2K0 详解Python列表推导式 其他 列表推导式可以使用非常简洁的方式对列表或其他可迭代对象的元素进行遍历...
File "/usr/local/lib/python2.3/site-packages/django/contrib/admin/views/main.py", line 298, in get_results result_list = p.get_page(page_num) NameError: global name 'p' is not defined 附件(1) Oldest first Newest first Show comments Show property changes 变更...
问尝试使用Tkinter将复选框指定给操作时出现"Variable is not defined“EN有一些项目组在定位问题的时候...
File "/Users/zoezhang/PycharmProjects/learnpython/learn-内嵌函数.py", line 8, in fun2() NameError: name 'fun2' is not defined 1. 2. 3. 4. 5. 6. 注意:内嵌函数在调用的时候,只能在定义函数的内部能调用,不能全局调用 5.闭包():如果在一个内部函数里,对外部作用域(但不是在全局作用域)...
Second, if you are not interested in type checking, you can disable all of pyright's type checking features by settingpython.analysis.typeCheckingModeto "off". fguillenmentioned this issueApr 5, 2021 VSCode and Pylance: multiple "Variable" is not defined warningslordmauve/pgzero#251 ...
-> get warning:"status_changed" is not defined Pylance(reportUndefinedVariable) You may have to install Python modules to (only) see this diagnostic; in my case, I have the baseline distribution package installed which got me system-wide copies. According todocs/installation.mdinstalling the fol...
Local variables are defined within a function and cannot be accessed outside it. A variable is assumed to be local unless explicitly declared as global using the global keyword. Example: var1 = "Python" def func1(): var1 = "PHP"
Execute the above code to change the global variable x’s value. You’ll get anUnboundLocalErrorbecause Python treatsxas a local variable, andxis also not defined inside my_func(). i.e, You cannot change or reassign value to a global variable inside a function just like this. ...
错误原因b属于条件判断为真的产物,当条件判断为假时就不存在b,其实这种错误类型和如下代码提示的错误相似 a = 0 if a == 1: b = 1 if b == 1: print(b) NameError: name 'b' is not defined 解决方案在条件判断之外就要给定b的值,而不是属于条件判断的产物...