How to Write to File in Python

To write to a file in Python, you can use the built-in “open()” function with the appropriate file mode, such as “w” (write) or “a” (append). The write() method is then used to write content to the file.

Here’s a step-by-step guide on how to write to a file in Python:

1. Use the open() function to create a file object, passing the file name and mode as arguments.
   
2. Write content to the file using the write() method of the file object.
   
3. Close the file using the close() method of the file object to free up resources and ensure that all data is written to the file.

Using the with statement when working with files is recommended, as it automatically handles closing the file for you.

Here’s an example of writing to a file using the ‘w’ (write) mode:

# Using the 'with' statement in write mode
with open("example.txt", "w") as file:
  file.write("Hello, World!\n")
  file.write("This is an example of writing to a file in Python using write mode.\n")

In this example, the file’s contents will be replaced with the new content.

If you want to append content to an existing file without overwriting its content, you can use the ‘a’ (append) mode:

# Using the 'with' statement in append mode
with open("example.txt", "a") as file:
  file.write("This line is appended to the existing content of the file.\n")

In this example, the new content is added to the end of the file without affecting the existing content.

That’s it.