kivy variables between classes or screens 

😅 this is the video

@@Pythoneer- okay let me try

Yes it has see if have modified something.

@@Pythoneer- I had deleted something by accident. It now works fine!

put this in the app class self.screenm = ScreenManager(transition=FadeTransition()) instead of this self.screenm = ScreenManager() and make sure to import from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition

u can check other transitions in the doc this one is for a fading screen

The code as it is works fine, check if u have added something, i have no attribute schermo2

@@Pythoneer- you re right! Your code works perfectly. The problem is mine because when I try to use a similar syntax for reach a variable from a screen to another,screenmanager said “none type has not etc”. Now I have resolved with the instantiation of the various screens object. Thanks for your time and your share 🏆

@@karimsantoro4326 my pleasure bro ❤. Keep it up

Use this at the top of the kv file #:set name value And whenever u want to use it again just use that name. There is also Numericproperty and Stringproperty u can check the doc its straightforward

@@Pythoneer- can you give an example

And can I use list element to assign variable

#:set fnt_size 20 Label: text 'example' font_size: fnt_size if u want to use a list u have to use python to read from it then pass it by id or by string or numeric property there is also listproperty. Ps its easier to read the doc u will find everything u need

@@Pythoneer- what meant by numeric and list property