tutorcruncher/pydf

OSError: [Errno 8] Exec format error

dbinetti opened this issue · 5 comments

dbinetti commented

Not sure if this library is still supported, but FWIW:

Python 3.6.2 (default, Jul 17 2017, 16:44:45) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.2.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import pydf

In [2]: p = pydf.generate_pdf('http://www.google.com')
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-2-911a3ffb27a6> in <module>()
----> 1 p = pydf.generate_pdf('http://www.google.com')

~/.virtualenvs/barberscore-api/lib/python3.6/site-packages/pydf/wkhtmltopdf.py in generate_pdf(html, cache_dir, grayscale, lowquality, margin_bottom, margin_left, margin_right, margin_top, orientation, page_height, page_width, page_size, image_dpi, image_quality, **extra_kwargs)
    143     cmd_args = _convert_args(**py_args)
    144 
--> 145     p = _execute_wk(*cmd_args, input=html.encode())
    146     pdf_content = p.stdout
    147 

~/.virtualenvs/barberscore-api/lib/python3.6/site-packages/pydf/wkhtmltopdf.py in _execute_wk(input, *args)
     28     """
     29     wk_args = (WK_PATH,) + args
---> 30     return subprocess.run(wk_args, input=input, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     31 
     32 

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py in run(input, timeout, check, *popenargs, **kwargs)
    401         kwargs['stdin'] = PIPE
    402 
--> 403     with Popen(*popenargs, **kwargs) as process:
    404         try:
    405             stdout, stderr = process.communicate(input, timeout=timeout)

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags, restore_signals, start_new_session, pass_fds, encoding, errors)
    705                                 c2pread, c2pwrite,
    706                                 errread, errwrite,
--> 707                                 restore_signals, start_new_session)
    708         except:
    709             # Cleanup if the child failed starting.

/usr/local/Cellar/python3/3.6.2/Frameworks/Python.framework/Versions/3.6/lib/python3.6/subprocess.py in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, restore_signals, start_new_session)
   1331                             else:
   1332                                 err_msg += ': ' + repr(orig_executable)
-> 1333                     raise child_exception_type(errno_num, err_msg)
   1334                 raise child_exception_type(err_msg)
   1335 

OSError: [Errno 8] Exec format error
samuelcolvin commented

Is definitely still supported, what made you think otherwise?

What os are you using? Does it work when converting raw html?

samuelcolvin commented

What processor architecture are you on?

Pydf comes bundled with a binary for amd64, if you're on another architecture you'll need to supply your own binary.

dbinetti commented
dbinetti commented
samuelcolvin commented

You'll need to download a binary for wkhtmltopdf which works on mac and set the WKHTMLTOPDF_PATH environment variable so pydf uses it. I've added a note to the beginning of the readme to that effect.

There haven't been any changes over the last 6 months because wkthmltopdf hasn't released a new stable version and nothing has gone wrong. When I say "nothing" I mean TutorCruncher alone generates well over 1m pdfs a month with pydf, both using the pypi package and the docker container; I can't remember a single error over that time with pydf.

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