my_data_file = open('data.txt', 'w')
r– (default mode) open the file for readingw– open the file for writing, overwriting the content if the file already exists with datax– creates a new file, failing if it existsa– open the file for writing, appending new data at the end of the file’s contents if it already existsb– write binary data to files instead of the default text data+– allow reading and writing to a mode