The writelines() method in Python is a method that is used to write a list of strings to a file. It is a method of the File object in Python, which represents an open file. With writelines(), you don’t have to worry about formatting the lines correctly – it does it for you. All you have to do is provide a list of strings and the writelines() Method will handle the rest. Another great benefit of writelines() is that you can use it with any type of file – from plain text to audio and video files. So if you need a quick and easy way to write to a file, the writelines() Method is the perfect solution.
Syntax:
The writelines() method uses the following syntax:
Here, sequence is the list of strings that is to be written to the file. The writelines() method does not add any newline characters to the end of the strings in the list. If you want to add a newline character at the end of each string in the list, you can use the writelines() method in the following way:
Example:
Let’s understand Python’s writelines() method with a few examples. Consider the following list of strings:
The writelines() method is generally faster than writing to a file using a loop and the write() method, as it writes all the strings in the list to the file in a single call. However, it is important to note that the writelines() method does not add any newline characters to the end of the strings in the list, so you may need to add them manually if you want to write each string to a new line in the file.
This will create a file named “myfile.txt” in current directory and write all the strings strings in the list lines to the file, in a single line.
This will create a file named myfile.txt and write the strings in the list lines to the file, one string per line, with a newline character at the end of each string.
This will append the strings in the list lines to the end of the file myfile.txt.
