Example code for python 3.6 is not working on macOS 10.13.1

[Twirl1910]

I always get the error-code:

File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pdfjinja.py", line 208, in exec_pdftk
p = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 707, in init
restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py", line 1326, in _execute_child
raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'pdftk'

I installed pdftk (even version 2.02 from here jkraemer/pdf-forms#30) and used the example code in python:

import os

from pdfjinja import PdfJinja
import pypdftk

dirname = os.path.dirname(file)
template_pdf_file = os.path.join(dirname, 'sample.pdf')
template_pdf = PdfJinja(template_pdf_file)

rendered_pdf = template_pdf({
'firstName': 'Faye',
'lastName': 'Valentine',
'address': {
'street': '223B Baker Street',
'apt': '6F',
'city': 'London',
'zipcode': 94455
},
'sig': os.path.join(dirname, 'sig.png'),
'spirit': 'Panda',
'evil': True,
'language': {
'english': True
},
'attachments': [{
'data': os.path.join(dirname, 'attachment.png'),
'text': 'Tux\nFriendly Penguin\nMascot :)',
'dimensions': [100, 200, 400, 400]
}]
})

output_file = os.path.join(dirname, 'output.pdf')
rendered_pdf.write(open(output_file, 'wb'))

[dfrojas]

You have to download pdftk https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/ and then run the script again. I had this same issue, but now the script takes too long. Please let me know if you can fix it and if you have the same issue as me (no errors but bot generate the PDF).

[pmourelle]

@dfrojas just ran test script (python 2.7.9 on osX 10.13.3). Output pdf is created and left empty, script ran (apparently doing nothing) for about 20mins until I killed it.