# Define a list containing different types of values # Import the json module, which provides an easy way to encode and decode JSON data ![]() We use the dump() method to write the list to the file in a JSON-encoded format. In this method, we use the json module to write the list to a file in JSON format. Read: How to Reverse a List in Python Method-4 Python Write List to File using the JSON module It then uses the with a statement to open a new file called ‘join.txt’ in write mode and writes the contents of my_list to the file, with each element on a new line. The above code defines a list called my_list containing various data types. # and write the contents of the list to the file in a specific format # Open a file named 'join.txt' in write mode using a context manager We then use the write() method to write this string to the file. In this method, we use the join() method to concatenate all the items in the list into a single string, separated by newline characters ‘\n’. Read: Python concatenate list Method-3: Python Write List to File using the join() and the write() method Python write a list to file using the writelines method It then loops through the list and writes each item to the file using the writelines() method. The above code creates a list of mobile phone brands and then opens a file named “f1.txt” in write mode. # loop through the mobile phone list and write each item to the file ![]() # open a file named "f1.txt" in write mode In this method, we use the writelines() method to write each item in the list to the file. Read: Python list methods Method-2: Python Write List to File using the writelines() method The for loop iterates over each element in the list and writes it to the file as a string, followed by a newline character to create a new line for the next element.It uses the with statement to open the file in write mode and automatically close it after writing the data. The code writes the elements of the list my_list to a file named output.txt, with each element on a new line. ![]() # loop through the list and write each item to the file # open a file named "output.txt" in write mode We also add a newline character ‘\n’ after each item to write each item on a new line. In this method, we use a for loop to iterate through each item in the list, and use the write() method to write each item to the file. Method-1: Python Write List to File using a for loop and the write() method There are several methods for writing a list to a file in Python, including using a for loop, the writelines () method, json module, etc. One common task is writing a list to a file, which can be useful for storing data that can be read later or for sharing data with other programs.
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