[python] prepare for PyPI

[guolinke]

No description provided.

[henry0312]

typo: PyPI (pypi), not pipy :)

[henry0312]

I can do refactoring setup.py after merge.

[guolinke]

@henry0312 can you refactor it base on this branch, then creat a PR to that branch?

[henry0312]

@guolinke yes, I can, but I'll have been busy until the end of June.
So I think It's better to merge this PR for now.

[guolinke]

@wxchan any comments?

[wxchan]

Is it possible to remove --precompile and infer whether it's precompiled? like run find_packages first and see if it's an exception?

[wxchan]

MANIFEST.in can be simplified a little:

warning: no files found matching '*.md'
warning: no files found matching '*' under directory 'include'
warning: no files found matching '*' under directory 'src'
warning: no previously-included files matching '*.o' found anywhere in distribution
warning: no previously-included files matching '*.obj' found anywhere in distribution
warning: no previously-included files matching '*.a' found anywhere in distribution
warning: no previously-included files matching '*.pyo' found anywhere in distribution
warning: no previously-included files matching '*.pyc' found anywhere in distribution

build_pip.py seems not necessary? we can run python setup.py sdist directly

[guolinke]

@wxchan
I think the default option should be re-compile, since it is more safe if updating the cpp codes.

[wxchan]

ok, hope it wouldn't be confused to old users.

what is the getopt error you talked about yesterday?

[guolinke]

@wxchan fixed by adding this line: https://github.com/Microsoft/LightGBM/blob/ddcee1e011336d68046cde257589da2eb730a9bf/python-package/setup.py#L29

[wxchan]

ok, no other issue.

[guolinke]

@wxchan
after build the package, i try to install it via pip install lightgbm-0.2a0.tar.gz.
But it shows a strange error : No files/directories in C:\Users\xxx\AppData\Local\Temp\pip-vfzusp1m-build\pip-egg-info (from PKG-INFO)

Do you have any idea about this ?

[wxchan]

I got the same error on my mac, fix by removing this line