Python Open File, Append, Create if Not Exist [Methods - PyTutorial
https://pytutorial.com/python-open-file-append-create-if-not-exist/
WEBSep 26, 2023 · . Example 4: Create a New CSV File If It Doesn't Exist and Append Data. import csv. # Data to append . new_data = ["Alice", "Smith", "[email protected]"] # Open a CSV file in append mode, create it if it doesn't exist with open("new_data.csv", "a+", newline="") as file: . csv_writer = csv.writer(file) # Append the data as a new row .
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