How to Close a File in Python?

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In Python, you can close a file using the close() method provided by the file object. Here’s an example of how to close a file in Python:

# Open a file in write mode
file = open("example.txt", "w")

# Write data to the file
file.write("Hello, World!")

# Close the file

In this example, we first open a file named “example.txt” in write mode using the open() function. We assign the file object to the variable file.

Next, we use the write() method of the file object to write the string “Hello, World!” to the file.

Finally, we close the file by calling the close() method on the file object. This ensures that any pending data is written to the file and frees up system resources.

It’s important to close files after you’re done with them to free up system resources and ensure proper handling of the file. Failing to close files can result in data loss or other issues.

Alternatively, you can also use a context manager (with statement) to automatically close the file for you:

with open("example.txt", "w") as file:
    file.write("Hello, World!")

Using a context manager ensures that the file is automatically closed when you exit the block, even if an exception occurs within the block. This approach is considered more Pythonic and helps avoid the need to explicitly call close().

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