Pathlib vs OS.Path: How to better operate the file path

Pathlib vs os.path: How to better operate the file path In Python, the operation file path is one of the tasks that often encounter during development.There are two main modules in the Python standard library that can be used for file path operations: `Pathlib` and` OS.Path`.This article will compare these two modules and introduce how to better use them to operate the file path. 1. Introduction -` Pathlib`: `Pathlib` Module is introduced from Python 3.4.It provides an object -oriented way to manipulate the file path, which is more concise and convenient to use. -` OS.Path`: `os.Path` Module is a module used in the file path operation in the Python standard library, which provides a series of functions to process the file path. 2. Basic usage comparison There are similar basic usage to use the `Pathlib` and` OS.Path`, but there are some key differences. -Colon the path: -Afathlib`: You can use the `Path` class to create a path. python from pathlib import Path # 创 创 path = Path('path/to/file.txt') -Ad `os.path`: You can use` os.path.join () `function to create a path. python import os.path # 创 创 path = os.path.join('path', 'to', 'file.txt') -Exical part of the obtaining path: -Ad using `Pathlib`:` PATH` Class provides a series of attributes to obtain the path component, such as `.parent` to get the parent directory,` .Stm` Get the file name (without extension name), `.Suffix`Get file extension names, etc. python from pathlib import Path # 组 path = Path('path/to/file.txt') parent_dir = path.parent file_name = path.stem extension = path.suffix -Ad a series of functions provided by `OS.Path`: You can use a series of functions provided by the` OS.Path` module to obtain the component of the path, such as `os.path.dirname ()` to get the parent directory, `os.path.basename () `Get the file name,` os.path.splitext () `Get the file name and extension name. python import os.path # 组 path = 'path/to/file.txt' parent_dir = os.path.dirname(path) file_name = os.path.basename(path) extension = os.path.splitext(path)[1] -We judgment path existence: -Pathlib`: `PATH` Class provides` .exist () `method to determine whether the path exists. python from pathlib import Path # Determine whether the path exists path = Path('path/to/file.txt') if path.exists(): Print ('Path existence') -As using `os.path`: You can use` os.path.exist () `function to determine whether the path exists. python import os.path # Determine whether the path exists path = 'path/to/file.txt' if os.path.exists(path): Print ('Path existence') -At other operations: -Ad the use of `Pathlib`:` PATH` Class with many other operations, such as stitching paths, creating directory, traversing directory, etc. -Ad the use of `os.path`:` os.path` Module provides some other operations, such as stitching paths, creating directory, traversing directory, etc. 3. Advantages and applicable scenarios `Pathlib` has some advantages than` os.path`, making it more suitable for use in some scenarios. -The object -oriented design: `Pathlib` uses the object -oriented method to perform path operations to make the code more readable and maintained. -Simple concrete syntax: When using `Pathlib`, you can express the hierarchical structure and operation of the path more clearly without repeated calling the function. -The cross -platform compatibility: `Pathlib` supports the path of different operating systems, which can easily switch between different systems. When you need to perform the path frequency and hope that the code is more concise and easy to read, it is recommended to use the `Pathlib`.For some simple path operations, using `os.path` is also a common choice. 4. Example code The following is an example code that uses' pathlib` and `os.path` to perform path operation: python from pathlib import Path import os.path # Use Pathlib for path operation path = Path('path/to/file.txt') print(f'Parent directory: {path.parent}') print(f'File name: {path.stem}') print(f'Extension: {path.suffix}') if path.exists(): print('Path exists') # Use OS.Path for path operation path = os.path.join('path', 'to', 'file.txt') print(f'Parent directory: {os.path.dirname(path)}') print(f'File name: {os.path.basename(path)}') print(f'Extension: {os.path.splitext(path)[1]}') if os.path.exists(path): print('Path exists') 5. Summary `Pathlib` and` OS.Path` are two important modules used in python for file path operations.This article introduces their basic usage comparison and advantages, as well as applicable scenarios.Which module is used depends on personal preferences and specific needs, but it is recommended to use the `Pathlib` to write priority when operating frequent path operations in order to write more concise and readable code.