gistfile1.py

# Function to print the last order row of new Order
def printOrder(d):
    key = d.keys()[-1]
    lpr = subprocess.Popen("/usr/bin/lpr", stdin=subprocess.PIPE)
    lpr.stdin.write("OrderNo"+ str(key)+"\n")
    lpr.stdin.write("Name :"+ d[key]['name'] + "\n")
    lpr.stdin.write("tel :"+ str(d[key]['telephone'])+"\n")
    for y in d[key]['items']:
        lpr.stdin.write(y['name'] + " " + y['size'] +" " + str(y['quantity']) + " " +str(y['price']) + "\n")
    lpr.stdin.write("$ "+ str(d[key]['total']) +  "  discount" +" "+ str(d[key]['discount']) )
    lpr.stdin.write(d[key]['instruct']+"\n")

    lpr.stdin.close()
    lpr.wait()