How do I get multiple items on an address lines to print in Reportlab/tkinter/Python script?

Question

How do I get multiple lines to print on one label in reportlab/tkinter/python? For example, the below prints "Hello" and "World" on two different labels(screenshot attached). I would like to be able to print "Hello" and "World" on the same label, along with additional items below them that would look something like this:

Hello World

Tomorrow

Wednesday

I have tried adding in the same line(sheet.add_label("Hello", "World") but get attached error. Any and all help, thoughts, comments appreciated. Sample working script below:

import labels
from reportlab.graphics import shapes

specs = labels.Specification(210, 297, 2, 8, 90, 25, corner_radius=2)

def draw_label(label, width, height, obj):
    label.add(shapes.String(2, 2, str(obj), fontName="Helvetica", fontSize=40))


sheet = labels.Sheet(specs, draw_label, border=True)

sheet.add_label("Hello")
sheet.add_label("World")


sheet.save('basic.pdf')
print("{0:d} label(s) output on {1:d} page(s).".format(sheet.label_count, sheet.page_count))

New Line example

Error Message

Original Script Output

Answer 1

It seems this problem exists as issue since 2017.

Long strings don't wrap to new line · Issue #15 · bcbnz/pylabels

But you can modify draw_label to get list of lines and use two label.add() with different position in String()

def draw_label(label, width, height, lines):
    #print('lines:', lines)
    label.add(shapes.String(2, 20,  lines[0], fontName="Helvetica", fontSize=20))
    label.add(shapes.String(2, 2, lines[1], fontName="Helvetica", fontSize=20))

sheet = labels.Sheet(specs, draw_label, border=True)

# [ text, text ]
sheet.add_label(["Hello","World"])

You could make it even more complex using list with other values (like x, y, fontName, fontSize, etc.)

def draw_label(label, width, height, lines):
    for x, y, text in lines:
        label.add(shapes.String(x, y, text, fontName="Helvetica", fontSize=20))

sheet = labels.Sheet(specs, draw_label, border=True)

# [ (x, y, text), (x, y, text), ... ]
sheet.add_label([ (2, 40, "Hello"), (2, 20, "World"), (2, 2, "Python") ])

---

Full working code

import labels
from reportlab.graphics import shapes

specs = labels.Specification(210, 297, 2, 8, 90, 25, corner_radius=2)

def draw_label(label, width, height, lines):
    for x, y, text in lines:
        label.add(shapes.String(x, y, text, fontName="Helvetica", fontSize=20))

sheet = labels.Sheet(specs, draw_label, border=True)

# [ (x, y, text), (x, y, text), ... ]
sheet.add_label([ (2, 40, "Hello"), (2, 20, "World"), (2, 2, "Python") ])
sheet.add_label([ (2, 40, "Other"), (2, 20, "Label") ])

sheet.save('basic.pdf')

print("{0:d} label(s) output on {1:d} page(s).".format(sheet.label_count, sheet.page_count))

---

EDIT:

You could create more complex code to add images

sheet.add_label([ 
    ('text', 2, 40, "Hello"), 
    ('text', 2, 20, "World"), 
    ('image', 2, 2, 50, 50, "/home/user/images/logo.png") 
])

And it would need to use if/else to check 'text'/'image' and add different shape.

Something like this

import labels
from reportlab.graphics import shapes

specs = labels.Specification(210, 297, 2, 8, 90, 25, corner_radius=2)

def draw_label(label, width, height, items):
    for item in items:
        if item[0] == 'text':
            print('adding string', item)
            _, x, y, text = item
            label.add(shapes.String(x, y, text, fontName="Helvetica", fontSize=20))
        elif item[0] == 'image':
            print('adding image', item)
            _, x, y, width, heigh, path = item
            label.add(shapes.Image(x, y, width, heigh, path))

sheet = labels.Sheet(specs, draw_label, border=True)

# [ ('text', x, y, text), ('image', x, y, width, height, path), ... ]
sheet.add_label([ ('text', 2, 40, "Hello"), ('text', 2, 20, "World"), ('image', 100, 0, 90, 90 , "/home/furas/images/grass.jpg") ])
sheet.add_label([ ('text', 2, 40, "Other"), ('text', 2, 20, "Label") ])

sheet.save('basic.pdf')

print("{0:d} label(s) output on {1:d} page(s).".format(sheet.label_count, sheet.page_count))