dir()可以查看当前命名空间中的所有变量、函数和对象。总结 “NameError: name is not defined”是一个常见的Python错误,但也是可以预防和解决的。通过遵循上述建议和最佳实践,你可以显著降低遇到此问题的风险,并提高你的Python代码质量和可维护性。想了解更多精彩内容,快来关注python高手养成、墨沐文化 ...
如果在使用这些变量之前没有进行声明,就会触发"NameError: name is not defined"错误。通过在try-except块中包装代码,我们可以捕获这个错误并打印一条有用的消息。💙 四、总结解决Python中"NameError: name is not defined"的常见错误可以通过声明变量、检查拼写、确认导入、检查作用域和检查代码逻辑等方法来实现。
出现name is not defined时,先运行报错的脚本,查看not defined的代码。然后关闭报错提示。 2.打开脚本编辑,找到该报错代码的位置。对该处语法进行修改。修改完之后再次运行脚本,报错消失。 3.因为name是一个系统变量,多种原因都会导致name not defined。例如:要加双引号(”“)或者(’‘)而没加;字符缩进格式出现...
因为name是一个系统变量,包含了模块的名称,很多错误原因导致name not defined:1、缩进导致定义类型成为局部变量 2、>name两端可是双下划线的,并不是只有一个 3、没有定义函数,直接运行 解决办法:1、用python自带的global函数把他们变成全局变量。2、检查缩进 3、检查是否已经定义了函数 ...
(gm, self.example_inputs()) File "/usr/local/lib/python3.8/dist-packages/torch/_dynamo/repro/after_dynamo.py", line 117, in debug_wrapper compiled_gm = compiler_fn(gm, example_inputs) File "/usr/local/lib/python3.8/dist-packages/torch/_dynamo/repro/after_dynamo.py", line 288, in ...
Let's assume input is bob, then this becomes:username = eval('bob') Since eval() executes 'bob' as if it were a Python expression, your program becomes this:username = bob => NameError print ("Hello Mr. " + username) You could make it work my entering "bob" (with the quotes),...
import stringimport randomdef sto(mun): s='' l=string.ascii_letters k=len(l)-1 for i in range(mun): s+=l[random.randint (0,k)] return sh=random.randint (3,7)s=sto(h)print (s)
User activation: Learnings and opportunities Preventing unauthorized automated access to the network Feedback Requested: How do you use the tagged questions page? Linked 0 NameError: name 'main' is not defined - indentation Related 3 Unexpected NameError 2 Python keeps saying NameError: name...
Python程序,错误NameError:名称XX未定义不是由声明引起的,需要在文件的前两行声明代码,声明方法是:1,在文件中写一个带有中文字符的python文件,不进行编码。2,当程序文件中有中文字符时,如果文件未声明编码格式,则会显示错误消息:文件“encode.py”,第1行#SaxaxError:文件编码中的非ASCII字符...
You can also install it directly in your command prompt or terminal. Here’s the command that you can use to install theseabornlibrary: ✅pip install seaborn Solution 2: Import seaborn as sns After the seaborn library is installed you may now Import seaborn and assign it to the variable ...