importosimportstatimportshutildeferrorRemoveReadonly(func,path,exc):excvalue=exc[1]iffuncin(os.rmdir,os.remove)andexcvalue.errno==errno.EACCES:# change the file to be readable,writable,executable: 0777os.chmod(path,stat.S_IRWXU|stat.S_IRWXG|stat.S_IRWXO)# retryfunc(path)else:# raiseenter ...
all previous components (on Windows, including the previous drive letter, if there was one) are thrown away, and joining continues. The return value is the concatenation of path1, and optionally path2, etc., with exactly one directory separator (os.sep) inserted between components, unless path...
all previous components (on Windows, including the previous drive letter, if there was one) are thrown away, and joining continues. The return value is the concatenation of path1, and optionally path2, etc., with exactly one directory separator (os.sep) inserted between components, unless path...
shutil.rmtree(directory, onerror=remove_readonly) 在删除之前检查文件夹是否存在,这样更可靠。 importshutildefremove_folder(path):# check if folder existsifos.path.exists(path):# remove if existsshutil.rmtree(path)else:# throw your exception to handle this special scenarioraiseXXError("your exception...
class MyHandler(http.server.SimpleHTTPRequestHandler): def __init__(self, *args, **kwargs): super().__init__(*args, directory='path_to_directory', **kwargs) 其中,path_to_directory是要共享的目录的路径。 创建一个服务器对象,并指定端口号和处理程序类: 代码语言:txt 复制 PORT = 8000 Han...
If False, write() will raise OSError. """ pass #判断文件是否可写 f = open('a.txt','r',encoding='utf-8') print(f.writable()) #False,因为是用r模式打开 f.close() 1.5 文件的删除 文件的删除需要使用os模块和os.path模块。os模块提供了对系统环境、文件、目录等操作系统级的接口函数。文件...
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...
Check for the existence of File or a Directory in Python For this example, we have created a file called “myfile.txt” and a directory called “my_test_folder“. How to Check if a File Exists We can work with the os module as follows: import os.path if os.path.isfile(...
# writable.py class WritableFile: def __init__(self, file_path): self.file_path = file_path def __enter__(self): self.file_obj = open(self.file_path, mode="w") return self.file_obj def __exit__(self, exc_type, exc_val, exc_tb): if self.file_obj: self.file_obj.close(...
Formally, the first form is known as an object’s as-code repr, and the second is its user-friendly str. The difference can matter when we step up to using classes; for now, if something looks odd, try showing it with a print built-in call statement. Besides expressions, there are ...