Python PY_VAR0

[TLILI MED]

Hello
something that i don't understand
I launch a prog.py recovering the selected line of a treeview,
I assign these values to the 2 fields, the tt happens correctly.

prog.py

def selection
       curitem=tree.focus()
       dict=tree.item(curitem)
       chvalue1.set(dict["values"][1])
       chvalue2.set(dict["values"][2])

The problem is here:
Calling the same script from another prog.py passing through a function called from a button:

prog1.py (this is the prog that calls prog.py)

def list():
     exec(open("./prog.py").read(), globals())


chEntry1=entry(fen, textvariable=chvalue1)
chEntry2=entry(fen, textvariable=chvalue2)
the chvalue1 and chvalue2 do not take any value and my print displays py_var7

Thanks in advance