align left and right on the same line

What steps will reproduce the problem?
1. use Epson TM-T20
2. execute the following code
3.

What is the expected output? What do you see instead?
I would like to format a line to begin on the left with some words ("article" 
in my example) and then align on the right to write the price (15.00 € here)

What version of the product are you using? On what operating system?
python-escpos 1.0-1 on ubuntu 13.10

Please provide any additional information below.

code :
Epson.set("LEFT", "A", "", 1, 1)
Epson.text("Article 1")
Epson.set("RIGHT", "A", "", 1, 1)
Epson.text("15.00 \xd5")
Epson.text("\n")

Original issue reported on code.google.com by [e-mail] on 15 May 2014 at 10:29

[MicroJoe]

I had to use this feature for receipt-like printing recently. Here is the snippet that I used (with hardcoded width from my printer):

def leftright(p, left, right, font='b'):
    if font == 'a':
        p.textln("{:<20}{:>12}".format(left, right))
    else:
        p.textln("{:<30}{:>12}".format(left, right))

Maybe we can think of a kind of API for this. At least it will help if someone wants to do this right now without using a cleaner solution (I think this is Python 3 only).

[patkan]

I don’t think that escpos printers are capable of this. Probably the best way to do that is by using tabs.