[Tutor] Tkinter text

[max baseman]

hello im working on my first simple gui using Tkinter
i've got two questions, 1st how would you go about creating a hidden  
text file that trys on a apple and if that does not work tries to do  
it on a windows computer?

the program I'm making is a vary simple text editor for one file all  
it needs to be able to do is add text and save. as far as i can see  
i'll mostly need to use the text widget but i cant find a tutorial  
for that widget mostly just for the text entry widget which is only  
for one line of text. if anyone knows a good tut that would be great


thank you