The os Library , List a file, Create a folder, Renames a file

The os Library

Today's lesson is going to use the os library to create folders and navigate around them.

Previously, we've used os to clear the screen.

Here are a few other things that it can do:

List a file

👉 listdir() will allow you to list all the files:

import os

print(os.listdir()) # Lists all the files in the current directory. Useful for checking that a file is in the folder we think it is.

files = os.listdir()

if "quickSave.txt" not in files:

print("Error: Quick Save not found.")

#Checks if a file is in a directory and outputs an error if not.

Create a folder
👉 Try this code with os.mkdir():

import os

os.mkdir("Hello") # Creates a folder called 'Hello'

Renames a file

👉 os.rename() takes 2 arguments: the file to rename and the new name.

import os
os.rename("myname.txt", "NEW.o")

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