Improve Installation Process [setup.py file location]

[mchrestkha]

Is your feature request related to a problem? Please describe.
The most likely installation process for most users may result in the Dataflow runner not working as the setup.py file for the Dataflow workers will not be in the right place.

Describe the solution you'd like
Assume users will only pip install and not clone the repo. Place the setup.py file into the main library folder and update setup.py location in beam_pipeline.py

Describe alternatives you've considered
Got it working after moving the setup.py file into the main python ..python3.7/sitepackages/ folder.

Additional context
Add any other context or screenshots about the feature request here.

[mbernico]

Thanks for the report, recreating this now.

[mbernico]

Successfully reproduced, digging into the issue.

[mbernico]

Issue is at beam_pipeline.py 98.

if runner == 'DataflowRunner':
options_dict['setup_file'] = _get_setup_py_filepath()

Setup file isn't installed when TFRecorder is installed via pypi / whl (works with git)

[mbernico]

It looks like TFDV solves this problem by prompting the user to download the whl and supply it as a command line option, passing it to beam pipeline options as an extra package. This is 'less easy' than I'd like it to be but some variation of this is the best idea I have for a fix at this time.

More info: https://www.tensorflow.org/tfx/data_validation/get_started

[mbernico]

This should now be resolves in git @mchrestkha

I'll push it to pypi in just a few minutes as well.