How to Append to a File in Python

By: Rajesh P.S.

Appending to a file in Python involves adding new data at the end of an existing file. You can achieve this by opening the file in append mode ('a') and then writing the desired content. Here's how to do it with examples:

Using 'write' Method

You can use the write method to add new content to the end of the file.

with open('myfile.txt', 'a') as file: file.write("This is a new line.\n") file.write("Appending more content.\n")

Using 'print' Function

The print function can be used to write data to a file as well.

with open('myfile.txt', 'a') as file: print("This is another line.", file=file) print("Appending data using print.", file=file)

Continue Reading...

Remember to include the newline character (\n) if you want to separate appended content from the existing content.

Keep in mind that the file should be closed after appending to ensure proper file handling:

file = open('myfile.txt', 'a') file.write("Appended content.") file.close()

However, using the with statement is recommended as it automatically closes the file when the block is exited.

with open('myfile.txt', 'a') as file: file.write("Appending using 'with' statement.")

Appending is useful when you want to add new data without overwriting existing content in the file.

Conclusion

Appending to a file in Python can be achieved by opening the file in append mode ('a') and then using either the write method or the print function to add new content. The 'with' statement is recommended for proper file handling, as it automatically closes the file when the block is exited.

Next > Difference Between Multithreading vs Multiprocessing in Python

Related Topics

More Related Topics.....