Traceback (most recent call last):


 "plug.pyo", line 109, in load_plugins


 "plug.pyo", line 40, in __init__
AttributeError: 'module' object has no attribute 'plugin_start'


Traceback (most recent call last):


 "/usr/bin/ocrmypdf", line 11, in <module>

load_entry_point('ocrmypdf==4.3.5', 'console_scripts', 'ocrmypdf')()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 561, in load_entry_point

return get_distribution(dist).load_entry_point(group, name)


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2631, in load_entry_point

return ep.load()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2291, in load

return self.resolve()


 "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2297, in resolve

module = __import__(self.module_name, fromlist=['__name__'], level=0)


 "/usr/lib/python3/dist-packages/ocrmypdf/__main__.py", line 387, in <module>

logging_factory, __name__, [None, options.verbose])


 "/usr/lib/python3/dist-packages/ruffus/proxy_logger.py", line 342, in make_shared_logger_and_pro

xy
manager.start()


 "/usr/lib/python3.5/multiprocessing/managers.py", line 479, in start

self._process.start()


 "/usr/lib/python3.5/multiprocessing/process.py", line 105, in start

self._popen = self._Popen(self)


 "/usr/lib/python3.5/multiprocessing/context.py", line 267, in _Popen

return Popen(process_obj)


 "/usr/lib/python3.5/multiprocessing/popen_fork.py", line 17, in __init__

sys.stdout.flush()

AttributeError: 'NoneType' object has no attribute 'flush'