QDAC2 current measurements should be returned as floats

docs/examples/QDevil/QDAC2/MultiGenerator.ipynb

@@ -98,8 +98,8 @@
    "source": [
     "channel = qdac.ch03\n",
     "square = channel.square_wave()\n",
-    "sine = qdac.ch03.sine_wave()\n",
-    "triangle = qdac.ch03.triangle_wave()\n",
+    "sine = channel.sine_wave()\n",
+    "triangle = channel.triangle_wave()\n",
     "scope.write('run')\n",
     "qdac.start_all()"
    ]

qcodes_contrib_drivers/drivers/QDevil/QDAC2.py

@@ -7,7 +7,7 @@
 from typing import Any, NewType, Sequence, List, Dict, Tuple, Optional
 from packaging.version import parse
 
-# Version 0.11.2
+# Version 0.12.1
 #
 # Guiding principles for this driver for QDevil QDAC-II
 # -----------------------------------------------------
@@ -31,7 +31,7 @@
 #
 # 4. Any generator should by default be set to start on the bus trigger
 #    (*TRG) so that it is possible to synchronise several generators without
-#    further set up; which also eliminates the need for special cases for the
+#    further setup; which also eliminates the need for special cases for the
 #    bus trigger.
 
 
@@ -1011,7 +1011,8 @@ def available_A(self) -> Sequence[float]:
         # Bug circumvention
         if self.n_available() == 0:
             return []
-        return comma_sequence_to_list(self._ask_channel('sens{0}:data:rem?'))
+        return comma_sequence_to_list_of_floats(
+            self._ask_channel('sens{0}:data:rem?'))
 
     def peek_A(self) -> float:
         """Peek at the first available current measurement
@@ -1022,7 +1023,7 @@ def peek_A(self) -> float:
         return float(self._ask_channel('sens{0}:data:last?'))
 
     def _set_aperture(self, aperture_s: Optional[float], nplc: Optional[int]
-                     ) -> None:
+                      ) -> None:
         if aperture_s:
             return self._write_channel(f'sens{"{0}"}:aper {aperture_s}')
         self._write_channel(f'sens{"{0}"}:nplc {nplc}')
@@ -2117,7 +2118,7 @@ def _set_up_debug_settings(self) -> None:
 
     def _set_up_serial(self) -> None:
         # No harm in setting the speed even if the connection is not serial.
-        self.visa_handle.baud_rate = 921600 # type: ignore
+        self.visa_handle.baud_rate = 921600  # type: ignore
 
     def _check_for_wrong_model(self) -> None:
         model = self.IDN()['model']

qcodes_contrib_drivers/tests/QDevil/test_sim_qdac2_current.py

@@ -151,6 +151,8 @@ def test_measurement_remove_two(qdac):  # noqa
         'sens2:data:rem?'
     ]
     assert len(available) == 2
+    assert isinstance(available[0], float)
+    assert isinstance(available[1], float)
 
 
 def test_measurement_last(qdac):  # noqa