call a variable from one function to another ...

[Windspar]

Function variables are local to function. They cannot be shared.

options.
maybe have function return variable.

import os 
def qassam():
    filename = "/root/Downloads/scapy.txt"
    return filename
 
 
def fileex():
    filename = qassam()
    if os.path.isfile(filename):
        print("is there")
    else:
        print("else ... ")
         
fileex()

Make shared variables

import os 

class ShareVariables:
    filename = ""

def qassam():
    ShareVariables.filename = "/root/Downloads/scapy.txt"
 
 
def fileex():
    if os.path.isfile(ShareVariables.filename):
        print("is there")
    else:
        print("else ... ")

qassum()         
fileex()

My least favorite. Have global variable

import os 
filename = ""

def qassam():
    global filename
    filename = "/root/Downloads/scapy.txt"
 
 
def fileex():
    if os.path.isfile(filename):
        print("is there")
    else:
        print("else ... ")

qassum()         
fileex()