修复Python错误NameError: Variable is not defined 在上面的例子中,我们得到了NameError,因为我们调用了一个超出范围的变量。 让我们看看如何修复这个NameError:Variable is not defined。 #global scopea =3#Function to add two numbersdefdisplayScope():#local varaibleb=2print("The value of a = ",a)prin...
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。
File"windowBouncingBalls.py",line84,in<module>speed=[choice([-2,2]),choice([-2,2])]NameError: name'choice'isnotdefined You raise the missingchoiceidentifier when two things occur. The first thing requires you to use a standardimportstatement, like the following example, and the second thi...
在Python编程中,UnboundLocalError是一个运行时错误,它发生在尝试访问一个在当前作用域内未被绑定(即未被赋值)的局部变量时。 错误信息UnboundLocalError: local variable ‘xxx’ referenced before assignment指出变量xxx在赋值之前就被引用了。 这种情况通常发生在函数内部,尤其是在使用循环或条件语句时,变量的赋值逻辑可...
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...
如果是局部变量,但仍然报出unboundLocal Error问题,比如下面的代码示例: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 def test(flag):if(a): bbb=aaa elif(b): bbb2=aaa2print(bbb2) 错误提示:UnboundLocalError: local variable ‘bbb2’ referenced before assignment。
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)...
python 使用嵌套函数报local variable xxx referenced before assignment或者 local variable XXX defined in enclosing scope 2019-10-14 10:26 −... james_cai 0 4955 Shared variable in python's multiprocessing 2019-12-10 14:19 −Shared variable in python's multiprocessing https://www.programcreek....
In general, a variable that is defined in a block is available in that block only. It is not accessible outside the block. Such a variable is called a local variable. Formal argument identifiers also behave as local variables.
The above code raise a UndefinedVariableError: name 'BACKTICK_QUOTED_STRING_1' is not defined Expected Behavior returns the first row Installed Versions INSTALLED VERSIONS commit : 0691c5c python : 3.10.14 python-bits : 64 OS : Linux OS-release : 5.15.0-122-generic Version : #132-Ubuntu ...