How do you open a file in Python?

 To open a file in Python, you can use the built-in open() function. Here is an example of how to use it:

In this example, the open() function is used to open a file named "example.txt" in read mode (denoted by the "r" argument). The open() function returns a file object, which is assigned to the variable file.
To close the file after you're done with it, you can call the close() method on the file object:

It's important to remember to close the file when you're done with it to free up system resources. Alternatively, you can use a context manager to automatically close the file when you're done with it, like this:

In this example, the open() function is used with a context manager (with statement) to automatically close the file when the block is exited. Inside the block, the file object is used to read the contents of the file and print them to the console.