add simple setup for pip install

python-package/lightgbm/__init__.py

+# coding: utf-8
+"""LightGBM, Light Gradient Boosting Machine.
+
+Contributors: https://github.com/Microsoft/LightGBM/graphs/contributors
+"""
+
+from __future__ import absolute_import
+
+import os
+
+from .basic import Predictor, Dataset, Booster
+from .engine import train, cv
+try:
+    from .sklearn import LGBMModel
+except ImportError:
+    pass
+
+VERSION_FILE = os.path.join(os.path.dirname(__file__), 'VERSION')
+with open(VERSION_FILE) as f:
+    __version__ = f.read().strip()
+
+__all__ = ['Dataset', 'Booster',
+           'train', 'cv',
+           'LGBMModel']
\ No newline at end of file

python-package/lightgbm/basic.py

@@ -11,33 +11,10 @@ import tempfile
 import numpy as np
 import scipy.sparse
 
+from .libpath import find_lib_path
 
 IS_PY3 = (sys.version_info[0] == 3)
 
-
-def find_lib_path():
-    """Find the path to LightGBM library files.
-    Returns
-    -------
-    lib_path: list(string)
-       List of all found library path to LightGBM
-    """
-    curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
-    dll_path = [curr_path, os.path.join(curr_path, '../../lib/'),
-        os.path.join(curr_path, '../../'),
-        os.path.join(curr_path, './lib/'),
-        os.path.join(sys.prefix, 'lightgbm')]
-    if os.name == 'nt':
-        dll_path.append(os.path.join(curr_path, '../../windows/x64/Dll/'))
-        dll_path.append(os.path.join(curr_path, './windows/x64/Dll/'))
-        dll_path = [os.path.join(p, 'lib_lightgbm.dll') for p in dll_path]
-    else:
-        dll_path = [os.path.join(p, 'lib_lightgbm.so') for p in dll_path]
-    lib_path = [p for p in dll_path if os.path.exists(p) and os.path.isfile(p)]
-    if not lib_path:
-        raise Exception('Cannot find lightgbm Library')
-    return lib_path
-
 def _load_lib():
     """Load LightGBM Library."""
     lib_path = find_lib_path()

python-package/lightgbm/libpath.py

+import os
+import platform
+import sys
+
+
+def find_lib_path():
+    """Find the path to LightGBM library files.
+    Returns
+    -------
+    lib_path: list(string)
+       List of all found library path to LightGBM
+    """
+    curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
+    dll_path = [curr_path, os.path.join(curr_path, '../../lib/'),
+        os.path.join(curr_path, '../../'),
+        os.path.join(curr_path, './lib/'),
+        os.path.join(sys.prefix, 'lightgbm')]
+    if os.name == 'nt':
+        dll_path.append(os.path.join(curr_path, '../../windows/x64/Dll/'))
+        dll_path.append(os.path.join(curr_path, './windows/x64/Dll/'))
+        dll_path = [os.path.join(p, 'lib_lightgbm.dll') for p in dll_path]
+    else:
+        dll_path = [os.path.join(p, 'lib_lightgbm.so') for p in dll_path]
+    lib_path = [p for p in dll_path if os.path.exists(p) and os.path.isfile(p)]
+    if not lib_path:
+        raise Exception('Cannot find lightgbm Library')
+    return lib_path

python-package/setup.py

+# pylint: disable=invalid-name, exec-used
+"""Setup lightgbm package."""
+from __future__ import absolute_import
+import sys
+import os
+from setuptools import setup, find_packages
+# import subprocess
+sys.path.insert(0, '.')
+
+CURRENT_DIR = os.path.dirname(__file__)
+
+libpath_py = os.path.join(CURRENT_DIR, 'lightgbm/libpath.py')
+libpath = {'__file__': libpath_py}
+exec(compile(open(libpath_py, "rb").read(), libpath_py, 'exec'), libpath, libpath)
+
+LIB_PATH = libpath['find_lib_path']()
+print("Install lib_lightgbm from: %s" % LIB_PATH)
+
+# Please use setup_pip.py for generating and deploying pip installation
+# detailed instruction in setup_pip.py
+setup(name='lightgbm',
+      version=open(os.path.join(CURRENT_DIR, 'lightgbm/VERSION')).read().strip(),
+      description="LightGBM Python Package",
+      install_requires=[
+          'numpy',
+          'scipy',
+      ],
+      maintainer='Guolin Ke',
+      maintainer_email='guolin.ke@microsoft.com',
+      zip_safe=False,
+      packages=find_packages(),
+      include_package_data=True,
+      data_files=[('lightgbm', LIB_PATH)],
+      url='hhttps://github.com/Microsoft/LightGBM')