Align wash_scheme=None signature and insert W; in Evo case

⚠ Behavior change for `EvoWorklist.transfer(wash_scheme=None)`:
* Previously nothing was inserted
* Now `W;` is inserted

Closes #77

Author: michaelosthege

robotools/__init__.py

@@ -20,7 +20,7 @@
 from .utils import DilutionPlan, get_trough_wells
 from .worklists import BaseWorklist, CompatibilityError
 
-__version__ = "1.10.1"
+__version__ = "1.11.0"
 __all__ = (
     "BaseWorklist",
     "CompatibilityError",

robotools/evotools/test_worklist.py

@@ -109,12 +109,16 @@ def test_transfer_2d_volumes_no_wash(self) -> None:
             assert wl == [
                 "A;A;;;1;;20.00;;;;",
                 "D;B;;;1;;20.00;;;;",
+                "W;",
                 "A;A;;;2;;15.30;;;;",
                 "D;B;;;2;;15.30;;;;",
+                "W;",
                 "A;A;;;3;;30.00;;;;",
                 "D;B;;;3;;30.00;;;;",
+                "W;",
                 "A;A;;;4;;17.53;;;;",
                 "D;B;;;4;;17.53;;;;",
+                "W;",
             ]
             np.testing.assert_array_equal(
                 A.volumes,

robotools/evotools/worklist.py

@@ -219,7 +219,7 @@ def transfer(
         volumes: Union[float, Sequence[float], np.ndarray],
         *,
         label: Optional[str] = None,
-        wash_scheme: int = 1,
+        wash_scheme: Optional[int] = 1,
         partition_by: str = "auto",
         **kwargs,
     ) -> None:
@@ -239,8 +239,9 @@ def transfer(
             Volume(s) to transfer
         label : str
             Label of the operation to log into labware history
-        wash_scheme : int
-            Wash scheme to apply after every tip use
+        wash_scheme : int, optional
+            Wash scheme to apply after every tip use.
+            If ``None``, a `W;` is inserted.
         partition_by : str
             one of 'auto' (default), 'source' or 'destination'
                 'auto': partitioning by source unless the source is a Trough
@@ -306,6 +307,8 @@ def transfer(
                             nsteps += 1
                             if wash_scheme is not None:
                                 self.wash(scheme=wash_scheme)
+                            else:
+                                self.append("W;")
                             naccessed += 1
                 # LVH: if multiple wells are accessed, don't group across partitions
                 if npartitions > 1 and naccessed > 1 and not p == npartitions - 1:

robotools/worklists/base.py

@@ -516,7 +516,7 @@ def transfer(
         volumes: Union[float, Sequence[float], numpy.ndarray],
         *,
         label: Optional[str] = None,
-        wash_scheme: int = 1,
+        wash_scheme: Optional[int] = 1,
         partition_by: str = "auto",
         **kwargs,
     ):