make skip specific to linux

Author: wholmgren

pvlib/test/__init__.py

@@ -2,6 +2,7 @@
 # the xray/xarray project
 
 import sys
+import platform
 
 try:
     import unittest2 as unittest
@@ -17,15 +18,16 @@
 def requires_scipy(test):
     return test if has_scipy else unittest.skip('requires scipy')(test)
 
-def incompatible_conda_py3(test):
+def incompatible_conda_linux_py3(test):
     """
     Test won't work in Python 3.x due to Anaconda issue.
     """
     major = sys.version_info[0]
     minor = sys.version_info[1]
+    system = platform.system()
 
-    if major == 3:
-        out = unittest.skip('error on Python 3 due to anaconda')(test)
+    if major == 3 and system == 'Linux':
+        out = unittest.skip('error on Linux Python 3 due to Anaconda')(test)
     else:
         out = test
 

pvlib/test/test_pvsystem.py

@@ -10,7 +10,7 @@
 
 from nose.tools import assert_equals, assert_almost_equals
 from pandas.util.testing import assert_series_equal, assert_frame_equal
-from . import incompatible_conda_py3
+from . import incompatible_conda_linux_py3
 
 from pvlib import tmy
 from pvlib import pvsystem
@@ -123,7 +123,7 @@ def test_calcparams_desoto():
                                EgRef=1.121,
                                dEgdT=-0.0002677)
 
-@incompatible_conda_py3
+@incompatible_conda_linux_py3
 def test_i_from_v():
     output = pvsystem.i_from_v(20, .1, .5, 40, 6e-7, 7)
     assert_almost_equals(-299.746389916, output, 5)
@@ -141,7 +141,7 @@ def test_singlediode_series():
     out = pvsystem.singlediode(cecmodule, IL, I0, Rs, Rsh, nNsVth)
     assert isinstance(out, pd.DataFrame)
 
-@incompatible_conda_py3
+@incompatible_conda_linux_py3
 def test_singlediode_series():  
     cecmodule = sam_data['cecmod'].Example_Module                       
     out = pvsystem.singlediode(cecmodule, 7, 6e-7, .1, 20, .5)