这是因为inner_variable的作用域仅限于inner_function,在outer_function中无法访问。我们应该将inner_variable定义在outer_function中。 通过这些例子,我们可以看到解决 “undefined name” 错误的关键是确保正确拼写变量或函数的名称,并在使用它们之前先定义它们。此外,还需要注意作用域问题,确保在正确
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Error is an undefined name in run_on_save.py (streamlit#605) Browse files python3 -c "Exception" # No problems python3 -c "NotImplementedError" # No problems python3 -c "Error" # NameError: name 'Error' is not defined [flake8](http://flake8.pycqa.org) testing of https://...
An undefined name is likely to raiseNameErrorat runtime. Example defdouble():returnn*2# raises `NameError` if `n` is undefined when `double` is called Use instead: defdouble(n):returnn*2 References Python documentation: Naming and binding ...
我试着做一件最简单的事情,打开一个文件,在python中读取并关闭它。很简单。问题是,这个表情符号不是在像U+2600那样的unicode语法中,它们是作为小图像放置的。encode character '\U0001f681' in 我尝试了以下几种方法,没有具体的编码: name</e 浏览4提问于2015-08-26得票数 2 回答已采纳 1回答 MySQL-pytho...
python 为什么当我在init方法中请求用户输入时，我的示例变量显示为undefined当您调用类构造函数时，您的...
Print only once if something specific name is in the file I have a problem. This is my script: The problem is here I want to only check if POP42 is in the file in the second column and print 5 but I have data like that so it will print into my output file ${... ...
问python中的"Name can be undefined“问题EN昨天晚上一个网友需要将服务器配置WEB且恢复他购买的帝国CMS...
newname 'silence' newname.charAt(); 's' newname.charAt(2); 'l' (2)返回指定字符的索引位置newname 'silence' newname.indexOf('n');; 4 【4】拼接字符串newname 'silence' var name1 = "mark"; undefined var name2 = "park"; undefined newname.concat(name1,name2); 'silencemarkpark' ...
Best practice fromusers.modelsimportUserfromauth.modelsimportcheck_passworduser=User.objects.get(name='Grant')check_password(user.username,'password') Additional links https://www.python.org/dev/peps/pep-0008/#imports