2,4]In[19]:even_gen=(eforeinrange(10)ife%2==0)In[20]:even_gen[:3]---TypeErrorTraceback(mostrecentcalllast)InputIn[20],in<cellline:1>()--->1even_gen[:3]TypeError:'generator'objectisnotsubscriptable 而且两者有一个致命的区别:生成器表达式只能迭代一次,而列表推导式可以使用很多次,举例如...
cell_contents) # 运行结果: Traceback (most recent call last): File "test01.py", line 8, in <module> print(f.__closure__[0].cell_contents) TypeError: 'NoneType' object is not subscriptable # 说明这个不是闭包 4. 闭包的作用 ### 临时名称空间的示例 ### def func(n): num = 1 num...
错误日志的代码示例如下(包含高亮注释): # 错误日志示例# File "script.py", line 8, in <module># clear_cells(sheet, 'A1:B10')# TypeError: 'NoneType' object is not subscriptable # 需要检查是否正确加载了工作表 1. 2. 3. 4. 性能优化 使用新特性进行调优,以下是一个压测脚本示例(使用 Locust):...
__closure__[0].cell_contents) #结果 TypeError: 'NoneType' object is not subscriptable #结果就是没有闭包调用的值,就不是闭包 #是闭包 def func(): name = 'test' age = 18 def inner(): print(name) print(age) return inner f = func() print(f.__closure__[0].cell_contents) print(f...
2、脚本中引入copy方法,但提示TypeError: 'module' object is not callable的解决办法:将引入语句写成fromxlutils.copyimport copy; 3、指定sheet时(ow.get_sheet[0];),提示TypeError: 'method' object is not subscriptable 产生原因:subscriptable的意思是可有下标,错误的原因就是:对象不具有下标,即把不具有下标操...
print(f.__closure__[0].cell_contents) # 运行结果: Traceback (most recent call last): File "test01.py", line 8, in <module> print(f.__closure__[0].cell_contents) TypeError: 'NoneType' object is not subscriptable # 说明这个不是闭包 ...
TypeError: 'type' object is not subscriptable if proper name given,it will print []. ↥ back to top Q. What is a method? A method is a function on some object x that you normally call as x.name(arguments...). Methods are defined as functions inside the class definition: class ...
:passclassShenacell(App):defbuild(self):returnWindowManager()if__name__=='__main__':Shenacell...
方法： yum install xorg-x11-xauth 二、打开linux服务器的sshd的X11转发功能： vi /etc/ssh/sshd...
scraper.py TypeError: 'NoneType' object is not subscriptable Select Nested ElementsThe DOM is a nested tree structure. Defining a selection strategy to get the desired HTML elements in one step isn't always easy, but that's why Beautiful Soup offers an alternative approach for searching nodes...