Raspberry Pi Photobooth Printing

Question

I've built this photobooth, and I am struggling to figure out what code i would need to add to the script in order to get this to print a copy of each photo. I have already mapped my printer to the raspberry pi using cups.

Here is the github with the script.

Thanks!

Answer 1

First, you will need pycups. Then this code should work but I cannot test it:

# Set up CUPS
conn = cups.Connection()
printers = conn.getPrinters()
printer_name = printers.keys()[0]
cups.setUser('pi')

# Save the picture to a temporary file for printing
from tempfile import mktemp
output = mktemp(prefix='jpg')
im.save(output, format='jpeg')

# Send the picture to the printer
print_id = conn.printFile(printer_name, output, "Photo Booth", {})

# Wait until the job finishes
from time import sleep
while conn.getJobs().get(print_id, None):
    sleep(1)

The picture is im, which is created at line 168. Just paste the code below this line.

For more details, you can find the snap method in boothcam.py#L99.

This is a script I succesfully tested:

#!/usr/bin/env python
# coding: utf-8

import cups
import Image
from tempfile import mktemp
from time import sleep


# Set up CUPS
conn = cups.Connection()
printers = conn.getPrinters()
printer_name = printers.keys()[0]
cups.setUser('tiger-222')

# Image (code taken from boothcam.py)
im = Image.new('RGBA', (683, 384))
im.paste(Image.open('test.jpg').resize((683, 384)), ( 0, 0, 683, 384))

# Save data to a temporary file
output = mktemp(prefix='jpg')
im.save(output, format='jpeg')

# Send the picture to the printer
print_id = conn.printFile(printer_name, output, "Photo Booth", {})
# Wait until the job finishes
while conn.getJobs().get(print_id, None):
    sleep(1)
unlink(output)