How to use Pathlib for file search and traversal

How to use pathlib to find and traverse files In Python, Pathlib is a module for advanced file operations.It provides a simple and objective way to operate the paths and files in the file system.The introduction of the Pathlib module makes file search and traversal more simple and intuitive.This article will introduce how to use the Pathlib module to find and traverse files. Install Pathlib module The Pathlib module has been built in the standard library from the Python 3.4 version, so there is no need to install it. Import the Pathlib module To start using the Pathlib module, you need to import it first.You can use the following code to import the Pathlib module: python from pathlib import Path Find files via PATH object First of all, we need to create a PATH object to represent the path to find.Path objects can be created in two ways.First, you can use a string to represent the path, and then use the PATH function to convert it to the PATH object.Secondly, you can use the string path of the current working directory, and then use the resolution method of the Path object to create a PATH object.The following are the examples of two ways: Use the string line to create a PATH object: python path = Path('path/to/directory') Use the current working directory to create a PATH object: python path = Path.cwd().resolve() Now, we have created the PATH object, which can be used to find and traverse with this object. Use PATH object to find files Now, we will introduce two main Path object methods to find files. 1. GLOB method: Use the mixing symbol matching to find the file.You can use ** to match any catalog level.The following is an example code: python # Find a file with all extension '.txt' files = path.glob('**/*.txt') # Print all matching file paths for file in files: print(file) 2. RGLOB method: Find the files in the subdirectory recursively.Different from the GLOB method, the RGLOB method will find files in all subd directory, not just the current directory.The following is an example code: python # Find all the files with the extension '.txt' files = path.rglob('*.txt') # Print all matching file paths for file in files: print(file) Using one of these two methods, you can easily find the file path and print it out. Documents and subditors in the catalog In addition to finding files, Pathlib also provides several methods to traverse the files and sub -directory in the directory. 1. Iterdir method: Return all files and sub -directory lists of all files and subdirectory in the directory.The following is an example code: python #Proforment of files and sub -directory in the directory for item in path.iterdir(): print(item) 2. RGLOB method: Back to the Path object list of all files and sub -directory in the directory and its sub -directory recursively.The following is an example code: python # And the files and sub -directory in the sub -directory for item in path.rglob('*'): print(item) These methods will return a list of PATH objects and can be processed further. Complete example code python from pathlib import Path path = Path('path/to/directory') # Use the GLOB method to find all files with extension '.txt' files = path.glob('**/*.txt') # Print all matching file paths for file in files: print(file) # Use the RGLOB method to find all the files with the extension '.txt' recursively files = path.rglob('*.txt') # Print all matching file paths for file in files: print(file) #Proforment of files and sub -directory in the directory for item in path.iterdir(): print(item) # And the files and sub -directory in the sub -directory for item in path.rglob('*'): print(item) The above code demonstrates how to use the Pathlib module to find and traverse files.You can modify and expand the code according to your own needs. Summarize Using the Pathlib module can easily find and traverse files.It provides a simple and objective way to operate the paths and files in the file system.This article introduces how to use the Pathlib module to create PATH objects, find files and traversal directory.I hope this article will help you learn and use the Pathlib module.