Parse Snipe IT label HTML and create nice PDF for Zebra ZD420

label.py

from reportlab.graphics.barcode import code39, code128, code93
from reportlab.graphics.barcode import eanbc, qr, usps
from reportlab.graphics.shapes import Drawing
from reportlab.lib.pagesizes import letter
from reportlab.lib.units import mm
from reportlab.pdfgen import canvas
from reportlab.graphics import renderPDF
from reportlab.lib.units import inch
from reportlab.platypus import Paragraph, Frame
from reportlab.lib.styles import getSampleStyleSheet

styles = getSampleStyleSheet()
styleN = styles['Normal']
styleN.fontSize = 6
styleN.fontName = 'Meta'
styleN.allowOrphans = 1
styleN.leading = 6
styleN.borderPadding = 0
styleN.leftIndent = 0


import reportlab.rl_config
reportlab.rl_config.warnOnMissingFontGlyphs = 0
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
pdfmetrics.registerFont(TTFont('Meta', 'MetaOT-Medi.ttf'))
pdfmetrics.registerFont(TTFont('SourceCodePro', 'SourceCodePro-Medium.ttf'))

import lxml.html


tree = lxml.html.fromstring(open('/Users/ctheune/Labels.html').read())



#----------------------------------------------------------------------
def createBarCodes():
    """
    Create barcode examples and embed in a PDF
    """
    c = canvas.Canvas("label.pdf", pagesize=(2*inch, 1*inch))

    for label in tree.find_class('label'):
        label_data = {}

        for line in label.text_content().splitlines():
            line = line.strip()
            if not line:
                continue
            if ':' in line:
                key, value = line.split(':', maxsplit=1)
                label_data[key] = value.strip()

        if label_data['C'] == 'Flying Circus':
            label_data['C'] = 'Flying Circus Internet Operations GmbH'
        label_data['ID'] = int(label_data['T'].replace('FC', ''))

        print(label_data)

        # Company
        c.setFont("Meta", 5)
        c.drawString(0.6*inch, 0.08*inch, label_data['C'])

        # Tag
        c.setFont("SourceCodePro", 19)
        c.drawString(0.6*inch, 0.2*inch, label_data['T'])

        # Model
        model = [Paragraph(label_data['M'], style=styleN)]
        f = Frame(0, 0.6*inch, 2*inch, 0.45*inch, showBoundary=0)
        f.addFromList(model, c)

         # draw a QR code

        qr_code = qr.QrCodeWidget(f'https://assets.flyingcircus.io/hardware/{label_data["ID"]}')
        bounds = qr_code.getBounds()
        width = bounds[2] - bounds[0]
        height = bounds[3] - bounds[1]
        d = Drawing(45, 45, transform=[45./width,0,0,45./height,0,0])
        d.add(qr_code)
        renderPDF.draw(d, c, 0, 0)
        c.showPage()

    c.save()

if __name__ == "__main__":
    createBarCodes()