Merge branch 't/21203/sequences/k-regular' into t/21318/sequences/rec-basic-arith

* t/21203/sequences/k-regular:
  Python3: absolut import

Author: dkrenn

src/sage/combinat/k_regular_sequence.py

@@ -93,9 +93,10 @@
 # (at your option) any later version.
 #                  http://www.gnu.org/licenses/
 #*****************************************************************************
+from __future__ import absolute_import
 
-from sage.combinat.recognizable_series import RecognizableSeries
-from sage.combinat.recognizable_series import RecognizableSeriesSpace
+from .recognizable_series import RecognizableSeries
+from .recognizable_series import RecognizableSeriesSpace
 from sage.misc.cachefunc import cached_method