TST: add nose import for skipped scipy tests

Author: jreback

pandas/tests/frame/test_missing.py

@@ -23,6 +23,7 @@ def _skip_if_no_pchip():
     try:
         from scipy.interpolate import pchip_interpolate  # noqa
     except ImportError:
+        import nose
         raise nose.SkipTest('scipy.interpolate.pchip missing')
 
 

pandas/tests/series/test_missing.py

@@ -22,13 +22,15 @@ def _skip_if_no_pchip():
     try:
         from scipy.interpolate import pchip_interpolate  # noqa
     except ImportError:
+        import nose
         raise nose.SkipTest('scipy.interpolate.pchip missing')
 
 
 def _skip_if_no_akima():
     try:
         from scipy.interpolate import Akima1DInterpolator  # noqa
     except ImportError:
+        import nose
         raise nose.SkipTest('scipy.interpolate.Akima1DInterpolator missing')