How to use the os module to create and delete directories in Python 2.x

How to use the os module to create and delete directories in Python 2.x

In Python programming, we often need to create and delete directories. These operations can be easily implemented using Python's os module. In this article, I will explain how to create and delete directories in Python 2.x using the os module and provide code examples.

Create a directory using the os module

In Python, you can create a new directory by calling the mkdir() function of the os module. This function requires one parameter, which is the path to the directory to be created. The following is a sample code that uses the os module to create a directory:

import os

# 定义目录路径
dir_path = "/path/to/new_folder"

# 查看目录是否已经存在
if not os.path.exists(dir_path):
    # 创建目录
    os.mkdir(dir_path)
    print("目录创建成功")
else:
    print("目录已存在")

The above example first imports the os module. Then, store the path to the directory to be created in the dir_path variable. Next, use the exists() function of the os module to check whether the directory already exists. If the directory does not exist, call the mkdir() function to create the directory and print out a "Directory creation successful" prompt.

Use the os module to delete a directory

To delete a directory, you can use the rmdir() function of the os module. Similar to creating a directory, the rmdir() function also requires one parameter, which is the path of the directory to be deleted. The following is a sample code to delete a directory using the os module:

import os

# 定义要删除的目录路径
dir_path = "/path/to/delete_folder"

# 查看目录是否存在
if os.path.exists(dir_path):
    # 删除目录
    os.rmdir(dir_path)
    print("目录删除成功")
else:
    print("目录不存在")

In the above example, the os module is first imported. Then, store the path to the directory to be deleted in the dir_path variable. Next, use the exists() function of the os module to check whether the directory exists. If the directory exists, call the rmdir() function to delete the directory, and print out the prompt "Directory deletion successful".

It should be noted that the rmdir() function of the os module can only delete empty directories. If you want to delete a non-empty directory, you can use the walk() function of the os module to traverse the directory, use the remove() function of the os module to delete the files in the directory, and finally use the rmdir() function to delete the directory itself.

Summary

In Python 2.x, creating and deleting directories is very simple using the os module. These operations can be easily accomplished by calling the mkdir() and rmdir() functions. In actual development, using the os module can easily handle operations such as adding, deleting, modifying, and checking directories, improving the readability and maintainability of the code.

After the introduction of this article, I believe readers have already understood how to use the os module to create and delete directories in Python 2.x. Through practice and continuous exploration, you can gain a deeper understanding of Python's various functions and modules and improve your programming skills. I wish you great success in the world of Python!

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