Merge pull request #13 from IntuitionEngineeringTeam/bug_fix

fix slice and truncate

Author: ArnoldMSU

dist/redblackpy-0.1.1.0-py3.6-macosx-10.6-intel.egg

@@ -167,6 +167,9 @@ cdef class __TreeSeries_{DTYPE}(__BaseTreeSeries):
 
             return result
 
+        if self.__get_key_from_iter(begin) > self.__get_key_from_iter(end):
+            return result
+
         while True:
             result.insert( self.__get_key_from_iter(begin), 
                            __deref_value_ptr_{DTYPE}( deref(begin) ) )

redblackpy/cython_source/__tree_series_dtype.pxi

@@ -852,7 +852,17 @@ cdef class Series:
 
     def __getitem__(self, key):
 
-        return self.dtype_series.__getitem__(key)
+        if not isinstance(key, slice):
+            return self.dtype_series.__getitem__(key)
+
+        result = Series( dtype=self.dtype, 
+                         interpolate=self.interpolation,
+                         extrapolate=self.extrapolation,
+                         arithmetic=self.arithmetic )
+
+        (<Series>result).dtype_series = self.dtype_series.__getitem__(key)
+
+        return result
 
 
     def __setitem__(self, key, value):