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This article mainly introduces "what are the Python file system methods". In the daily operation, I believe that many people have doubts about what Python file system methods there are. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the questions of "what Python file system methods are there?" Next, please follow the editor to study!

Get information

1. Os.getcwd () gets the current working directory path as a string

Equivalent to the pwd command of macOS/Linux system

2. Os.listdir () gets the contents of the current working directory in the form of a list of strings

Equivalent to the ls command of macOS/Linux system

3. Os.walk ("starting_directory_path") returns a generator that contains the name and path information of directories and files in the current directory and all subdirectories

Os.walk () creates a generator that returns information about the current directory and subdirectories. It works through a directory in the specified starting directory.

Os.walk () returns the following for each directory it traverses:

The current directory path is a string

The subdirectory name in the current directory as a string

List the file name in the current directory as a list of strings

It is often useful to use os.walk () with a for loop to traverse the contents of a directory and its subdirectories. For example, the following code prints all files in the directory and subdirectories of the current working directory.

Import os cwd = os.getcwd () for dir_path, dir_names, file_names in os.walk (cwd): for f in file_names: print (f)

This is how we get the information, and now let's look at the commands to change the working directory or move, copy, or delete parts of the file system.

Change things

4. Os.chdir ("/ absolute/or/relative/path")

Equivalent to the cd command of macOS/Linux system

This method changes the current working directory to the absolute or relative path provided. If your code subsequently makes other changes to the file system, it's a good idea to handle any thrown exceptions when using the try-except method. Otherwise, you may be deleting directories or files that you do not want to delete.

5. Os.path.join ()

The os.path module has many useful methods for common pathname manipulation. You can use it to find information about directory names and directory name sections. The module also has a way to check whether a file or directory exists. Join () is designed to create a path that works on most operating systems by concatenating multiple strings into a beautiful file path.

Basically, if you are using a Unix or macOS system, os.path.join () creates the path by adding a forward slash ("/") between each string provided. If the operating system needs "\", then join knows to use a backslash. Join () also provides other developers with clear information about creating paths. Be sure to use it instead of manual string concatenation to avoid looking like a novice.

6. Os.makedirs ("dir1/dir2")

Equivalent to the mkdir-p command of macOS/Linux system

Os.makedirs () creates a directory. The mkdir () method also creates directories, but it does not create intermediate directories. So I suggest you use os.makedirs ().

7. Shutil.copy2 ("source_file_path", "destination_directory_path")

Equivalent to the cp command of macOS/Linux system

There are many ways to copy files and directories in Python. Shutil.copy2 () is a good choice because it tries to retain as much metadata as possible from the source file.

8. Shutil.move ("source_file", "destination")

Equivalent to the mv command of macOS/Linux system

Use shutil.move () to change the location of the file.

9. Os.remove ("my_file_path")

Equivalent to the rm command of macOS/Linux system

10. Shutil.rmtree ("my_directory_path")

Equivalent to the rm-rf command of macOS/Linux system

At this point, the study on "what are the Python file system methods" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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