PERF: use unique_list() instead of list(unique())

Author: gdementen

larray/core/group.py

@@ -9,7 +9,8 @@
 
 from larray.core.abstractbases import ABCAxis, ABCAxisReference, ABCArray
 from larray.util.oset import OrderedSet
-from larray.util.misc import (unique, find_closing_chr, _parse_bound, _seq_summary, _isintstring, renamed_to, LHDFStore)
+from larray.util.misc import (unique_list, find_closing_chr, _parse_bound, _seq_summary, _isintstring, renamed_to,
+                              LHDFStore)
 
 
 def _slice_to_str(key, repr_func=str):
@@ -694,7 +695,7 @@ def union(*args):
     ['a', 'b', 'c', 'd', 'e', 'f', 0, 1, 2]
     """
     if args:
-        return list(unique(chain(*(_to_ticks(arg) for arg in args))))
+        return unique_list(chain(*(_to_ticks(arg) for arg in args)))
     else:
         return []
 

larray/inout/pandas.py

@@ -6,7 +6,7 @@
 from larray.core.array import Array
 from larray.core.axis import Axis, AxisCollection
 from larray.core.constants import nan
-from larray.util.misc import unique
+from larray.util.misc import unique_list
 
 
 def decode(s, encoding='utf-8', errors='strict'):
@@ -48,7 +48,7 @@ def index_to_labels(idx, sort=True):
         if sort:
             return list(idx.levels)
         else:
-            return [list(unique(idx.get_level_values(label))) for label in range(idx.nlevels)]
+            return [unique_list(idx.get_level_values(label)) for label in range(idx.nlevels)]
     else:
         assert isinstance(idx, pd.Index)
         labels = list(idx.values)