[Py] Modify default paths (#845)

* Update default paths in setup.py

* Update defaults arguments in tox

python/setup.py

@@ -24,6 +24,7 @@ import distutils.ccompiler
 __version__ = '0.2.0'
 
 PYNGRAPH_SOURCE_DIR = os.path.abspath(os.path.dirname(__file__))
+NGRAPH_DEFAULT_INSTALL_DIR = os.environ.get('HOME')
 
 
 def find_ngraph_dist_dir():
@@ -31,7 +32,7 @@ def find_ngraph_dist_dir():
     if os.environ.get('NGRAPH_CPP_BUILD_PATH'):
         ngraph_dist_dir = os.environ.get('NGRAPH_CPP_BUILD_PATH')
     else:
-        ngraph_dist_dir = os.path.join(PYNGRAPH_SOURCE_DIR, 'build/ngraph_dist')
+        ngraph_dist_dir = os.path.join(NGRAPH_DEFAULT_INSTALL_DIR, 'ngraph_dist')
 
     found = os.path.exists(os.path.join(ngraph_dist_dir, 'include/ngraph'))
     if not found:
@@ -47,7 +48,7 @@ def find_pybind_headers_dir():
     if os.environ.get('PYBIND_HEADERS_PATH'):
         pybind_headers_dir = os.environ.get('PYBIND_HEADERS_PATH')
     else:
-        pybind_headers_dir = os.path.join(PYNGRAPH_SOURCE_DIR, 'build/pybind11')
+        pybind_headers_dir = os.path.join(PYNGRAPH_SOURCE_DIR, 'pybind11')
 
     found = os.path.exists(os.path.join(pybind_headers_dir, 'include/pybind11'))
     if not found:

python/tox.ini

@@ -8,9 +8,9 @@ deps =
   -rrequirements.txt
   -rtest_requirements.txt
 setenv =
-  NGRAPH_CPP_BUILD_PATH = {env:NGRAPH_CPP_BUILD_PATH:build/ngraph_dist}
-  LD_LIBRARY_PATH = {env:LD_LIBRARY_PATH:build/ngraph_dist/lib}
-  DYLD_LIBRARY_PATH = {env:DYLD_LIBRARY_PATH:build/ngraph_dist/lib}
+  NGRAPH_CPP_BUILD_PATH = {env:NGRAPH_CPP_BUILD_PATH:{homedir}/ngraph_dist}
+  LD_LIBRARY_PATH = {env:LD_LIBRARY_PATH:{homedir}/ngraph_dist/lib}
+  DYLD_LIBRARY_PATH = {env:DYLD_LIBRARY_PATH:{homedir}/ngraph_dist/lib}
   PYBIND_HEADERS_PATH = {env:PYBIND_HEADERS_PATH:}
 
 [testenv:py3]