Simple Sample for grid of reportlab

reportlab_sample.py

# -*- coding:utf-8 -*-
import os, sys
from reportlab.pdfgen import canvas

CANVAS = canvas.Canvas("sample.pdf", bottomup=False)
OFFSET = (50, 50)
XPAD, YPAD = (5, 5)
FONT_SIZE = 30
CANVAS.setFont("Helvetica", FONT_SIZE)

xlist = [OFFSET[0] + j*(2*XPAD + FONT_SIZE) for j in range(0, 3)]
ylist = [OFFSET[1] + j*(2*YPAD + FONT_SIZE) for j in range(0, 3)]

CANVAS.grid(xlist, ylist)

xlist2 = [OFFSET[0] + j*(2*XPAD + FONT_SIZE) for j in range(0, 2)]
ylist2 = [OFFSET[1] + j*(2*YPAD + FONT_SIZE) for j in range(0, 2)]

CANVAS.drawString(50 + 30 - 17, 50 + 30, "1")
CANVAS.drawString(50 + 30 - 17 + 2*XPAD + FONT_SIZE, 50 + 30, "2")
CANVAS.drawString(50 + 30 - 17, 50 + 30 + 2*YPAD + FONT_SIZE, "3")
CANVAS.drawString(50 + 30 - 17 + 2*XPAD + FONT_SIZE,
                  50 + 30 + 2*YPAD + FONT_SIZE, "4")

CANVAS.setLineWidth(3)
CANVAS.grid(xlist2, ylist2)

CANVAS.showPage()
CANVAS.save()