allow standard and cmake python install

Author: mcodev31

README.md

@@ -33,11 +33,21 @@ sudo make install
 
 The libmsym module requires python 3.
 
+If you have installed the libmsym library in a location that can be found by your loader (e.g. ldconfig):
+```shell
+cd ../bindings/python
+# install libmsym module in user site
+python setup.py install --user
+# run example
+python ./examples/msympy_example.py <input xyz-file> <output xyz-file>
+```
+
+If you want to install libmsym in a custom directory, the easies way it to use cmake:
 ```shell
 # install libmsym shared library in $HOME/lib and the python module in the user site
- cmake -DMSYM_BUILD_PYTHON:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=ON -DCMAKE_INSTALL_PREFIX=$HOME/lib -DMSYM_PYTHON_INSTALL_OPTS=--user ../.
+cmake -DMSYM_BUILD_PYTHON:BOOL=ON -DBUILD_SHARED_LIBS:BOOL=ON -DCMAKE_INSTALL_PREFIX=$HOME/lib -DMSYM_PYTHON_INSTALL_OPTS=--user ../.
 # run example
-python3 ../bindings/python/examples/msympy_example.py <input xyz-file> <output xyz-file>
+python ../bindings/python/examples/msympy_example.py <input xyz-file> <output xyz-file>
 ```
 
 methods dealing with SALCs etc. require numpy to be installed

bindings/python/.gitignore

@@ -1,5 +1,4 @@
 /build
-/__pycache__
 
 *.swp
 .DS_Store

bindings/python/CMakeLists.txt

@@ -3,8 +3,8 @@ cmake_minimum_required (VERSION 2.8.11)
 find_program(PYTHON "python")
 if (PYTHON)
 	set(MSYM_PYTHON_PACKAGE_DIR  "${CMAKE_CURRENT_BINARY_DIR}/libmsym")
-	set(MSYM_PYTHON_SETUP_IN     "${CMAKE_CURRENT_SOURCE_DIR}/setup.py.in")
-	set(MSYM_PYTHON_INIT_C_IN    "${CMAKE_CURRENT_SOURCE_DIR}/libmsym/__init__.py.in")
+	set(MSYM_PYTHON_SETUP_IN     "${CMAKE_CURRENT_SOURCE_DIR}/cmake/setup.py.in")
+	set(MSYM_PYTHON_INIT_C_IN    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/__init__.py.in")
 	set(MSYM_PYTHON_CODE_IN      "${CMAKE_CURRENT_SOURCE_DIR}/libmsym/libmsym.py")
 	set(MSYM_PYTHON_SETUP        "${CMAKE_CURRENT_BINARY_DIR}/setup.py")
 	set(MSYM_PYTHON_INIT_G_IN    "${CMAKE_CURRENT_BINARY_DIR}/__init__.py.in")

bindings/python/libmsym/__init__.py.in renamed to bindings/python/cmake/__init__.py.in

@@ -0,0 +1,4 @@
+/__pycache__
+
+*.swp
+.DS_Store

bindings/python/setup.py.in renamed to bindings/python/cmake/setup.py.in

@@ -0,0 +1,11 @@
+__all__ = []
+
+_libmsym_install_location = None
+
+def export(defn):
+    globals()[defn.__name__] = defn
+    __all__.append(defn.__name__)
+    return defn
+
+from . import libmsym
+

bindings/python/libmsym/.gitignore

@@ -0,0 +1,25 @@
+#
+#  setup.py
+#  libmsym
+#
+#  Created by Marcus Johansson on 07/10/15.
+#  Copyright (c) 2015 Marcus Johansson.
+#
+#  Distributed under the MIT License ( See LICENSE file or copy at http://opensource.org/licenses/MIT )
+#
+
+from distutils.core import setup
+import sys
+
+if (not sys.version_info[0] is 3):
+    sys.exit('libmsym module requires python 3')
+    
+setup(name='libmsym',
+      version='${LIBMSYM_VERSION}',
+      description = 'libmsym python binding',
+      license='MIT',
+      author='Marcus Johansson',
+      author_email='[email protected]',
+      url='https://github.com/mcodev31/libmsym',
+      packages=['libmsym']
+      )