f.write("test") io.UnsupportedOperation: not writable 1. 2. 3. 4. 5. 6. io.UnsupportedOperation 文件权限问题报错(上例中是用的f.write,故为not writable 原因及解决方案: open(“测试1.py”)如果入参没有加读写模式参数mode,说明默认打开文件的方式为只读方式,而此时又要写入字符,所以权限受限,才会...
r:表示文件只可读，此时向文件中写入内容会报错:io.UnsupportedOperation: not writable；...
IO error caught: not writable 抓获这个异常之后,得到一个 I/O 错误类,I/O 代表了数据的读写通道错误,一般会出现在保存在硬盘的文件读写上。并且错误语句也很明显,“not writable” 就是无法写入的意思。通过这样的方式,我们不仅能捕获异常,更能知道问题出自哪里。 如果暂时不想处理某种已知异常,而是希望在函数...
using System;publicclassHappyProgram{publicstaticvoidMain(){ Console.WriteLine("Enter a number: ");intYourNumber=Convert.ToInt16(Console.ReadLine());if(YourNumber >10) Console.WriteLine("Your number is greater than ten");if(YourNumber <=10) Console.WriteLine("Your number is ten or smaller")...
file_path='path/to/file.txt'ifnotos.path.exists(file_path):print(f"File '{file_path}' does not exist.")ifnotos.access(file_path,os.R_OK):print(f"File '{file_path}' is not readable.")ifnotos.access(file_path,os.W_OK):print(f"File '{file_path}' is not writable.") ...
>>>importkeyword>>>keyword.kwlist['False','None','True','and','as','assert','break','class','continue','def','del','elif','else','except','finally','for','from','global','if','import','in','is','lambda','nonlocal','not','or','pass','raise','return','try','while...
我的问题是在字典里放K,有些事Str有些int,所以报这个错,可以是str和int不能比较,所以获取的散列值有歧义,所以不允许。 for i,item in enumerate(i): if i == 25: temp[str(i)] = str(item) else: temp[str(i)] =
(s) to egg cache The following error occurred while trying to extract file(s) to thePythonegg cache: [Errno 13] Permission denied: '/root/.python-eggs' The Python egg cache directory is currently set to: /root/.python-eggs Perhaps your account does not have write access to this ...
AttributeError: attribute 'ids' of 'cv2.aruco_Board' objects is not writable. Steps to reproduce import cv2 from cv2 import aruco import numpy as np ids = [[elem] for elem in range(17)] aruco_dict = aruco.Dictionary_get(aruco.DICT_5X5_250) ...
Then it attaches the object to the exception’s .__traceback__ attribute, which is writable. You can create an exception and provide it with your own traceback using the .with_traceback() method.The .__cause__ attribute will store the expression passed to the from class when you’re ...