update conftest.py to resolve doctest issue.

- newer version numpy has a different print format for arrays and scalars that would potentially break the doctests.

bindings/python/cntk/conftest.py

@@ -47,7 +47,13 @@ def pytest_generate_tests(metafunc):
 import numpy
 # Because of difference in precision across platforms, we restrict the output
 # precision and don't write in scientific notation
+# Also, due to the change of how arrays and numbers are printed which was introduced in numpy v1.14.0,
+# we need to set printoptions to legacy to have consistent doctests. 
+def version(v):
+    return tuple(map(int, v.split('.')))
 numpy.set_printoptions(precision=6, suppress=True)
+if version(numpy.__version__) >= version('1.14'):
+    numpy.set_printoptions(legacy="1.13")
 
 import cntk.debugging
 cntk.debugging.set_checked_mode(True)

bindings/python/doc/conftest.py

@@ -51,10 +51,10 @@ def pytest_generate_tests(metafunc):
 # we need to set printoptions to legacy to have consistent doctests. 
 def version(v):
     return tuple(map(int, v.split('.')))
+numpy.set_printoptions(precision=6, suppress=True)
 if version(numpy.__version__) >= version('1.14'):
-    numpy.set_printoptions(precision=6, suppress=True, legacy="1.13")
-else:
-    numpy.set_printoptions(precision=6, suppress=True)
+    numpy.set_printoptions(legacy="1.13")
+
 import cntk