Sequences can no longer be initialised from tuples. No need for that,…

… since one can always unpack them.

lena/core/fill_compute_seq.py

@@ -83,10 +83,6 @@ def __init__(self, *args):
         fc_el = None
         after = []
 
-        # same as for Sequence
-        if len(args) == 1 and isinstance(args[0], tuple):
-            args = args[0]
-
         for ind, el in enumerate(args):
             if not check_sequence_type.is_fill_compute_el(el):
                 before.append(el)

lena/core/sequence.py

@@ -28,10 +28,6 @@ def __init__(self, *args):
         """
         seq = []
 
-        # Sequence can be initialized from a single tuple
-        if len(args) == 1 and isinstance(args[0], tuple):
-            args = args[0]
-
         for el in args:
             if hasattr(el, "run") and callable(el.run):
                 seq.append(el)

lena/core/source.py

@@ -34,10 +34,6 @@ def __init__(self, *args):
             raise exceptions.LenaTypeError(
                 "Source must be initialized with 1 argument or more (0 given)"
             )
-        if len(args) == 1 and isinstance(args[0], tuple):
-            # unpack one nesting level.
-            # Deeper nesting ((el,),) is not allowed.
-            args = args[0]
         if not callable(args[0]):
             raise exceptions.LenaTypeError(
                 "first element {} ".format(args[0])

lena/flow/group_plots.py

@@ -297,7 +297,7 @@ def __init__(self, group_by, select=None, transform=(), scale=None,
         if isinstance(transform, lena.core.LenaSequence):
             self._transform = transform
         else:
-            self._transform = lena.core.Sequence(transform)
+            self._transform = lena.core.Sequence(*transform)
 
         self._yield_selected = yield_selected
 

tests/core/test_fill_compute_seq.py

@@ -1,5 +1,3 @@
-from __future__ import print_function
-
 import pytest
 
 from lena.core import Sequence, Source, FillCompute, FillComputeSeq, Run
@@ -39,11 +37,7 @@ def test_fill_compute_seq():
     assert next(s3()) == 11.0
 
     s4 = Source(cnt1, Slice(10), FillComputeSeq(mul2, FillCompute(Mean()), Print()))
-    # tuple initialization works
-    s41 = Source(cnt1, Slice(10), FillComputeSeq((mul2, FillCompute(Mean()), Print())))
     assert next(s4()) == 11.0
-    assert next(s41()) == 11.0
-    # 11.0
 
     s5 = FillComputeSeq(mul2, FillCompute(Mean()), Print())
 

tests/core/test_source.py

@@ -33,10 +33,6 @@ def test_source():
     with pytest.raises(lena.core.LenaTypeError):
         s = Source(1)
 
-    # can initialize from tuple
-    s3 = Source((cnt0, Slice(1)))
-    assert list(s3()) == [0]
-
-    # nested tuples are not allowed (see no reason to do that)
+    # can not initialize from a tuple
     with pytest.raises(lena.core.LenaTypeError):
-        Source(((cnt0,),))
+        Source((cnt0, Slice(1)))