SoFunction
Updated on 2025-04-10

(path) detailed explanation and usage example in python

Preface

dirname is a Python function used to process file paths and is usually used to get the directory part of a given path. It is part of the module. The following is a detailed explanation and use example of the dirname function.

1. Import module

First, you need to import the os module because dirname is part of the module.

import os

2. Function definition

(path)

2.1. Parameters

  • path: A string representing the path to a file or directory.

2.2. Return value

  • Returns the directory part in the path, excluding the file name. If there is no directory part in the path, an empty string is returned.

2.3. Example

import os

# Example 1: Get the directory part of the file pathfile_path = "/home/user/documents/"
directory = (file_path)
print(directory)  # Output: /home/user/documents
# Example 2: Get the previous directory of the directory pathdir_path = "/home/user/documents/"
parent_directory = (dir_path)
print(parent_directory)  # Output: /home/user
# Example 3: The previous directory of the root directoryroot_path = "/"
root_parent = (root_path)
print(root_parent)  # Output: (empty string)
# Example 4: The previous directory of the current directorycurrent_path = "."
current_parent = (current_path)
print(current_parent)  # Output: (Empty string)

3. Things to note

  • Only process path strings, and do not check whether the path actually exists.
  • If the path ends with a slash, dirname ignores the last slash.
  • For relative paths, dirname also returns the previous directory of the relative path.

4. Use in combination with other functions

 Often with Use in conjunction to separate the directory and file names in the path.

import os

file_path = "/home/user/documents/"
directory = (file_path)
file_name = (file_path)

print("Directory:", directory)  # Output: /home/user/documentsprint("File Name:", file_name)  # Output:

With these examples and explanations, you should be able to understand and effectively use functions to handle file paths.

Extended

If print (file) The script where it is located is run with an absolute path, the absolute path where the script is located will be output. If it is run with a relative path, an empty directory will be output.

print((__file__))

Summarize

This is the end of this article about the detailed explanation and usage examples of python (path). For more detailed explanations of python (path), please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!