Future Of Technology - Django

Introduction:
Script use to get the pincode from a address. I used regulatr expression to find it. At first, we will check check pincode end of address. If we didn't get, then check between address. Here I assumed pincode starts with 7 and len should be 6 (ex 700002)

Script:

def getPin(myStr):
    pin=re.search(r"7(\d{0,5})$",myStr)# check for pincode end of string
    if not pin:
        pin=re.search(r"7(\d{0,5})[ ]",myStr) # check for pincode in between string
    if pin:
        return pin.group().strip()
    else:
        return ''