Python中的pathlib库使用详解_python_

The pathlib module – object-oriented filesystem paths(面向对象的文件系统路径)

from pathlib import Path # 导入pathlib的Path类 import os path = "/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb" p = Path(path) print(f"获取文件名：{p.name}") # 获取文件名：pathlib库的使用.ipynb

from pathlib import Path import os path = "/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb" p = Path(path) print(f"获取前缀：{p.stem}") # 获取前缀：pathlib库的使用 print(f"获取后缀：{p.suffix}") # 获取后缀：.ipynb

from pathlib import Path import os path = "/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb" p = Path(path) print(f"获取当前文件所属文件夹：{p.parent}") print(f"获取上一级文件夹：{p.parent.parent}") print(f"获取上上一级文件夹：{p.parent.parent.parent}") """ 获取当前文件所属文件夹：/home/leovin/JupyterNotebookFolders 获取上一级文件夹：/home/leovin 获取上上一级文件夹：/home """

from pathlib import Path import os path = "/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb" p = Path(path) print(f"获取当前文件所属文件夹及其父文件夹：{p.parents}\n") # 遍历 for idx, folder_path in enumerate(p.parents): print(f"No.{idx}: {folder_path}") """ 获取当前文件所属文件夹及其父文件夹： No.0: /home/leovin/JupyterNotebookFolders No.1: /home/leovin No.2: /home No.3: / """

from pathlib import Path import os path = "/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb" p = Path(path) print(f"将文件的绝对路径按照`/`进行分割，返回一个tuple：{p.parts}\n") # 遍历 for idx, element in enumerate(p.parts): print(f"No.{idx}: {element}") """ 获取当前文件所属文件夹及其父文件夹： No.0: / No.1: home No.2: leovin No.3: JupyterNotebookFolders No.4: pathlib库的使用.ipynb """ 

from pathlib import Path import os path_1 = Path.cwd() path_2 = os.getcwd() print(f"Path.cwd(): {path_1}") print(f"os.getcwd(): {path_2}") """ Path.cwd(): /home/leovin/JupyterNotebookFolders os.getcwd(): /home/leovin/JupyterNotebookFolders """

from pathlib import Path print(f"获取用户home路径: {Path.home()}") """ 获取用户home路径: /home/leovin """

from pathlib import Path p = Path("/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb") print(f"获取文件详细信息: {p.stat()}\n") print(f"获取文件字节大小: {p.stat().st_size}\n") print(f"获取文件创建时间: {p.stat().st_ctime}\n") # c: create print(f"获取文件上次修改时间: {p.stat().st_mtime}\n") # m:: modify """ 获取文件详细信息: os.stat_result(st_mode=33204, st_ino=23860358, st_dev=2052, st_nlink=1, st_uid=1000, st_gid=1000, st_size=12125, st_atime=1653039478, st_mtime=1653039478, st_ctime=1653039478) 获取文件字节大小: 12125 获取文件创建时间: 1653039478.703161 获取文件上次修改时间: 1653039478.703161 """

from pathlib import Path print(f"目标路径的文件是否存在: {Path('/home/leovin/JupyterNotebookFolders/xxx').exists()}") # False print(f"目标路径的文件是否存在: {Path('/home/leovin/JupyterNotebookFolders').exists()}") # True

from pathlib import Path print(f"目标路径是否为文件: {Path('/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb').is_file()}") # True print(f"目标路径是否为文件夹: {Path('/home/leovin/JupyterNotebookFolders/').is_dir()}") # True

from pathlib import Path print(f"目标路径是否为文件: {Path('/home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb').is_file()}") # True print(f"目标路径是否为文件夹: {Path('/home/leovin/JupyterNotebookFolders/').is_dir()}") # True

from pathlib import Path path_object = Path("/home/leovin/JupyterNotebookFolders/").iterdir() print(f"path_object: {path_object}") # path_object:  # 迭代目录对象 for idx, element in enumerate(path_object): print(f"No.{idx}: {element}") """ path_object:  No.0: /home/leovin/JupyterNotebookFolders/temp No.1: /home/leovin/JupyterNotebookFolders/torch.meshgrid().ipynb No.2: /home/leovin/JupyterNotebookFolders/array.argsort().ipynb No.3: /home/leovin/JupyterNotebookFolders/切片....ipynb No.4: /home/leovin/JupyterNotebookFolders/logging信息.log No.5: /home/leovin/JupyterNotebookFolders/Python中类的私有变量、私有方法、静态方法.ipynb No.6: /home/leovin/JupyterNotebookFolders/temp_file.ipynb No.7: /home/leovin/JupyterNotebookFolders/example.log No.8: /home/leovin/JupyterNotebookFolders/Python语法.ipynb No.9: /home/leovin/JupyterNotebookFolders/.ipynb_checkpoints No.10: /home/leovin/JupyterNotebookFolders/craw.data.txt No.11: /home/leovin/JupyterNotebookFolders/test.txt No.12: /home/leovin/JupyterNotebookFolders/logging的学习.ipynb No.13: /home/leovin/JupyterNotebookFolders/Test.ipynb No.14: /home/leovin/JupyterNotebookFolders/算法题 No.15: /home/leovin/JupyterNotebookFolders/functions.ipynb No.16: /home/leovin/JupyterNotebookFolders/mask转0&1.ipynb No.17: /home/leovin/JupyterNotebookFolders/Multi_Task_in_Python.ipynb No.18: /home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb No.19: /home/leovin/JupyterNotebookFolders/三种激活函数绘制.ipynb """

from pathlib import Path pattern = "JupyterNotebookFolders/*.ipynb" glob_generator = Path("/home/leovin/").glob(pattern) # 遍历返回的对象 -> 返回的是绝对路径 for idx, element in enumerate(glob_generator): print(f"No.{idx}: {element}") """ No.0: /home/leovin/JupyterNotebookFolders/torch.meshgrid().ipynb No.1: /home/leovin/JupyterNotebookFolders/array.argsort().ipynb No.2: /home/leovin/JupyterNotebookFolders/切片....ipynb No.3: /home/leovin/JupyterNotebookFolders/Python中类的私有变量、私有方法、静态方法.ipynb No.4: /home/leovin/JupyterNotebookFolders/temp_file.ipynb No.5: /home/leovin/JupyterNotebookFolders/Python语法.ipynb No.6: /home/leovin/JupyterNotebookFolders/logging的学习.ipynb No.7: /home/leovin/JupyterNotebookFolders/Test.ipynb No.8: /home/leovin/JupyterNotebookFolders/functions.ipynb No.9: /home/leovin/JupyterNotebookFolders/mask转0&1.ipynb No.10: /home/leovin/JupyterNotebookFolders/Multi_Task_in_Python.ipynb No.11: /home/leovin/JupyterNotebookFolders/pathlib库的使用.ipynb No.12: /home/leovin/JupyterNotebookFolders/三种激活函数绘制.ipynb """

from pathlib import Path # 当前文件夹下的txt文件 for idx, element in enumerate(Path("./").glob("*.txt")): print(f"No.{idx}: {element}") print("-" * 30) """ 删除指定的文件（非目录） 1. 是真的删除而非unlink 2. 如果文件不存在则保存 """ try: Path("./will_be_deleted.txt").unlink() except Exception as e: print(f"删除
                
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