Adding 1 to number

[nilamo]

#2 well i edited the code
no error but it prints nothing

       return zeroo + 1
        print(zeroo)

Of coarse it prints nothing, you return from the function before ever trying to print anything.

Aside from that, though, try to avoid global variables.  It might be a hassle at first, but it'll make your life much better later on :)

All the cool kids have posted code, so here's some from me, too:

>>> import tkinter as tk
>>> class Counter(object):
...   def __init__(self, start: int = 0):
...     self.value = start
...   def add(self) -> int:
...     if self.value < 900:
...       self.value += 1
...     print(self.value)
...     return self.value
...
>>> clicks = Counter()
>>> root = tk.Tk()
>>> tk.Button(root, text="click me!", command=clicks.add).pack()
>>> root.mainloop()
1
2
3
4
5
6
>>>