How to force to be written to the csv file right after opening?

Question

Python

Here is the code:

import csv
file = open("kek.csv", "w+")
writer = csv.writer(file)
writer.writerow(["1", "22", "333"])

Operating system - MacOS High Sierra (well, it can affect)
If the file exists, then the line 1,22,333 is written
But if it does not exist, then it is only created, and nothing is written to it

Answer 1

You were told about close in the last question. And it's better with open
And stop being a woodpecker, it's written about in the docks and google without any problems.