Create package install directly twine

[hildogjr]

I am using
twine version 1.12.1 (pkginfo: 1.4.2, requests: 2.19.1, setuptools: 39.0.1,requests-toolbelt: 0.8.0, tqdm: 4.26.0)

since the steps to publish a package is always

$ python setup.py sdist bdist_wheel
$ twine upload --repository-url https://test.pypi.org/legacy/ dist/*
username: ...
password:

May be add a option to create the package directly by twine when used a setup.py file as input.

[sigmavirus24]

python setup.py sdist bdist_wheel

Is not the only way to build a package for distribution via Twine. This may be most common, but we can't yet generalize that usage to every user of twine

[crwilcox]

This seems to be covered by an older issue, #160

[di]

Closing as a duplicate of #160.