Failing on empty args when running from docker

[psykzz]

Running
docker run --rm -v $(pwd):/data/ micahhausler/container-transform

Returns:

$ docker run --rm -v $(pwd):/data/ micahhausler/container-transform
Traceback (most recent call last):
  File "/usr/local/bin/container-transform", line 11, in <module>
    load_entry_point('container-transform==1.1.5', 'console_scripts', 'container-transform')()
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/site-packages/click-6.7-py3.6.egg/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/container_transform-1.1.5-py3.6.egg/container_transform/client.py", line 64, in transform
    output = converter.convert(verbose)
  File "/usr/local/lib/python3.6/site-packages/container_transform-1.1.5-py3.6.egg/container_transform/converter.py", line 46, in convert
    input_transformer = self._input_class(self._filename)
  File "/usr/local/lib/python3.6/site-packages/container_transform-1.1.5-py3.6.egg/container_transform/compose.py", line 32, in __init__
    self.stream_version = float(stream.get('version', '1'))
AttributeError: 'NoneType' object has no attribute 'get'
$