add platform if statement in setup.py for pip for pull #450 issuecomment-133795287

python-package/README.md

@@ -5,13 +5,14 @@ Installation
 We are on [PyPI](https://pypi.python.org/pypi/xgboost) now. For stable version, please install using pip:
 
 * ```pip install xgboost```
-* Note for windows users: this pip installation may not work on some windows environment. Please install from github if pip doesn't work on windows.
+* Note for windows users: this pip installation may not work on some windows environment, and it may cause unexpected errors. pip installation on windows is currently disabled for further invesigation, please install from github.
 
 For up-to-date version, please install from github.
 
 * To make the python module, type ```./build.sh``` in the root directory of project
 * Make sure you have [setuptools](https://pypi.python.org/pypi/setuptools)
 * Install with `python setup.py install` from this directory.
+* For windows users, please use the Visual Studio project file under [windows folder](../windows/). See also the [installation tutorial](https://www.kaggle.com/c/otto-group-product-classification-challenge/forums/t/13043/run-xgboost-from-windows-and-python) from Kaggle Otto Forum.
 
 Examples
 ------

python-package/setup.py

@@ -5,8 +5,13 @@ import sys
 from setuptools import setup, find_packages
 import subprocess
 sys.path.insert(0, '.')
-#build on the fly
 
+import os
+#build on the fly if install in pip
+#otherwise, use build.sh in the parent directory
+
+if 'pip' in __file__:
+    if not os.name == 'nt': #if not windows
         build_sh = subprocess.Popen(['sh', 'xgboost/build-python.sh'])
         build_sh.wait()
         output = build_sh.communicate()
@@ -23,7 +28,7 @@ LIB_PATH = xgboost.core.find_lib_path()
 #and be sure to test it firstly using "python setup.py register sdist upload -r pypitest"
 setup(name='xgboost',
       version=xgboost.__version__,
-      #version='0.4a12',
+      #version='0.4a13',
       description=xgboost.__doc__,
       install_requires=[
           'numpy',

python-package/xgboost/core.py

@@ -45,8 +45,12 @@ def find_lib_path():
     if os.name == 'nt':
         if platform.architecture()[0] == '64bit':
             dll_path.append(os.path.join(curr_path, '../../windows/x64/Release/'))
+            #hack for pip installation when copy all parent source directory here
+            dll_path.append(os.path.join(curr_path, './windows/x64/Release/'))
         else:
             dll_path.append(os.path.join(curr_path, '../../windows/Release/'))
+            #hack for pip installation when copy all parent source directory here
+            dll_path.append(os.path.join(curr_path, './windows/Release/'))
     if os.name == 'nt':
         dll_path = [os.path.join(p, 'xgboost_wrapper.dll') for p in dll_path]
     else: