Which file mode is used to open a CSV file for reading as well as writing?

Which function is used to read and write in CSV file?

The csv. writer() function returns a writer object that converts the user's data into a delimited string. This string can later be used to write into CSV files using the writerow() function.

Can you read to and write from a CSV at the same time Python?

You can do open("data. csv", "rw") , this allows you to read and write at the same time.

How do you read and write to a CSV file in Python?

Reading from CSV file At first, the CSV file is opened using the open() method in 'r' mode(specifies read mode while opening a file) which returns the file object then it is read by using the reader() method of CSV module that returns the reader object that iterates throughout the lines in the specified CSV document.