Regarding import library in two different program file

[Rohit]

Hi,
I wrote two Python programs. One program has a class definition and other program importing that class to access its attributes and methods. In both the programs I am importing sys in-built library and using it. Is there any way to import sys library in one program and use it in other program without importing?

Code is here:

#Program: program_1.py
import sys

class xmlFile:
    def sendXML(self, xmlFile):
        try:
            print("Processing XML file %s..." %xmlFile)
        except FileNotFoundError:
            print(os.path.basename(sys.argv[0])
                  + "->" + self.__class__.__name__
                  + "::"
                  + sys._getframe().f_code.co_name
                  + "(): File "
                  + xmlFile
                  + " does not exists!")
            exit(-2)

#Proram: program_2.py
import sys
import os.path
from program_1 import xmlFile

if (len(sys.argv) <= 1):
    print("usage: "+(os.path.basename(sys.argv[0]))+" <xml file>")
    exit

xmlFl = xmlFile()
dataList = xmlFl.sendXML(sys.argv[fl])

Thanks!