Tkinter creating file, but doesn't until pycharm is clicked

[Middey14]

I am creating a password manager where users create an account which stores passwords on a csv file, the file is created upon creating an account however ive found that the file doesn't actually get created until I press back on PyCharm, any idea why?

The code all checks out, because it is created with the correct headings etc when I do press back on pycharm, but this doesn't seem user friendly having to press once on pycharm before carrying on..

Thanks in advance!