Python os.unlink()
os模块中的所有函数在文件名和路径无效或不可访问,或其他具有正确类型但操作系统不接受的参数时都会引发OSError。
Python中的os.unlink()方法用于删除或删除文件路径。此方法在语义上与os.remove()方法相同。
就像os.remove()方法它也不能删除或删除目录。如果给定的路径是一个目录,则此方法将引发IsADirectoryError异常。os.rmdir()方法可用于删除目录。
语法:os.unlink(path,*,dir_fd =None)
参数:
path:表示文件路径的类路径对象。类路径对象是表示路径的字符串或字节对象。
dir_fd(可选):指向目录的文件描述符。这个参数的默认值是None。
如果指定的路径是绝对路径,则忽略dir_fd。
注意:参数列表中的’ * ‘表示以下所有参数(在我们的例子中是’ dir_fd ‘)都是仅关键字参数,可以使用它们的名称提供它们,而不是作为位置参数。
返回类型:此方法不返回任何值。
示例1
使用os.unlink()方法来移除或删除一个文件路径
# Python program to explain os.unlink() method # importing os module import os # File Path path = "/home / ihritik / Documents / file1.txt" # Remove the file path # using os.unlink() method os.unlink(path) print("File path has been removed successfully")
输出:
File path has been removed successfully
示例2
如果给定的路径是一个目录
# Python program to explain os.unlink() method # importing os module import os # Path path = "/home / User / Documents / ihritik" # if the given path # is a directory then # 'IsADirectoryError' exception # will raised # Remove the given # file path os.unlink(path) print("File path has been removed successfully") # Similarly, if the specified # file path does not exists or # is invalid then corresponding # OSError will be raised
输出:
Traceback (most recent call last): File "unlink.py", line 17, in os.unlink(path) IsADirectoryError: [Errno 21] Is a directory: '/home/User/Documents/ihritik'
示例3
处理使用os.unlink()方法时的错误
# Python program to explain os.unlink() method # importing os module import os # path path = '/home / User / Documents / ihritik' # Try Removing the given # file path using # try and except block try: os.unlink(path) print("File path removed successfully") # If the given path is # a directory except IsADirectoryError: print("The given path is a directory") # If path is invalid # or does not exists except FileNotFoundError : print("No such file or directory found.") # If the process has not # the permission to remove # the given file path except PermissionError: print("Permission denied") # For other errors except : print("File can not be removed")
输出:
The given path is a directory
版权声明:本页面内容旨在传播知识,为用户自行发布,若有侵权等问题请及时与本网联系,我们将第一时间处理。E-mail:284563525@qq.com