Apply basic code style changes to lastframe step

.pre-commit-config.yaml

@@ -61,7 +61,6 @@ repos:
             jwst/imprint/.* |
             jwst/ipc/.* |
             jwst/jump/.* |
-            jwst/lastframe/.* |
             jwst/lib/.* |
             jwst/linearity/.* |
             jwst/master_background/.* |

.ruff.toml

@@ -52,7 +52,7 @@ exclude = [
     "jwst/imprint/**.py",
     "jwst/ipc/**.py",
     "jwst/jump/**.py",
-    "jwst/lastframe/**.py",
+    # "jwst/lastframe/**.py",
     "jwst/lib/**.py",
     "jwst/linearity/**.py",
     "jwst/master_background/**.py",
@@ -182,7 +182,7 @@ ignore-fully-untyped = true  # Turn of annotation checking for fully untyped cod
 "jwst/imprint/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
 "jwst/ipc/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
 "jwst/jump/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
-"jwst/lastframe/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
+#"jwst/lastframe/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH"#, "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
 "jwst/lib/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
 "jwst/linearity/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]
 "jwst/master_background/**.py" = ["D", "N", "A", "ARG", "B", "C4", "ICN", "INP", "ISC", "LOG", "NPY", "PGH", "PTH", "S", "SLF", "SLOT", "T20", "TRY", "UP", "YTT", "E501"]

jwst/lastframe/__init__.py

@@ -1,3 +1,5 @@
+"""Set data quality flag of last group in MIRI data."""
+
 from .lastframe_step import LastFrameStep
 
-__all__ = ['LastFrameStep']
+__all__ = ["LastFrameStep"]

jwst/lastframe/lastframe_step.py

@@ -7,28 +7,40 @@
 
 class LastFrameStep(Step):
     """
-    LastFrameStep: This is a MIRI specific task.  If the number of groups
-    is greater than 2, the GROUP data quality flags for the final group will
-    be set to DO_NOT_USE.
+    Set data quality flags for the last group in MIRI ramps.
+
+    A MIRI specific task.  If the number of groups > 2, the GROUP
+    data quality flag for the final group will be set to DO_NOT_USE.
     """
 
     class_alias = "lastframe"
 
     spec = """
-    """ # noqa: E501
+    """  # noqa: E501
 
     def process(self, step_input):
-
+        """
+        For MIRI data with more than 2 groups, set final group dq to DO_NOT_USE.
+
+        Parameters
+        ----------
+        step_input : DataModel
+            Input datamodel to be corrected
+
+        Returns
+        -------
+        output_model : DataModel
+            Lastframe corrected datamodel
+        """
         # Open the input data model
         with datamodels.RampModel(step_input) as input_model:
-
             # check the data is MIRI data
             detector = input_model.meta.instrument.detector
 
-            if detector[:3] != 'MIR':
-                self.log.warning('Last Frame Correction is only for MIRI data')
-                self.log.warning('Last frame step will be skipped')
-                input_model.meta.cal_step.lastframe = 'SKIPPED'
+            if detector[:3] != "MIR":
+                self.log.warning("Last Frame Correction is only for MIRI data")
+                self.log.warning("Last frame step will be skipped")
+                input_model.meta.cal_step.lastframe = "SKIPPED"
                 return input_model
 
             # Work on a copy

jwst/lastframe/lastframe_sub.py

@@ -12,36 +12,36 @@
 
 def do_correction(output):
     """
-    Short Summary
-    -------------
-    The sole correction is to reset to DO_NOT_USE the GROUP data quality flags
-    for the final group, if the number of groups is greater than 2.
+    Set data quality flag of the final group in an integration to DO_NOT_USE.
+
+    This correction only works on MIRI data. If the number of groups
+    is greater than 2, then GROUP dq flag of final group is set to
+    DO_NOT_USE.
 
     Parameters
     ----------
-    output: data model object
-        science data to be corrected
+    output : DataModel
+        Science data to be corrected
 
     Returns
     -------
-    output: data model object
-        lastframe-corrected science data
-
+    output : DataModel
+        Lastframe-corrected science data
     """
-
     # Save some data params for easy use later
     sci_ngroups = output.data.shape[1]
 
     # Update the step status, and if ngroups > 2, set all of the GROUPDQ in
     # the final group to 'DO_NOT_USE'
     if sci_ngroups > 2:
-        output.groupdq[:, -1, :, :] = \
-            np.bitwise_or(output.groupdq[:, -1, :, :], dqflags.group['DO_NOT_USE'])
+        output.groupdq[:, -1, :, :] = np.bitwise_or(
+            output.groupdq[:, -1, :, :], dqflags.group["DO_NOT_USE"]
+        )
         log.debug("LastFrame Sub: resetting GROUPDQ in last frame to DO_NOT_USE")
-        output.meta.cal_step.lastframe = 'COMPLETE'
-    else:   # too few groups
+        output.meta.cal_step.lastframe = "COMPLETE"
+    else:  # too few groups
         log.warning("Too few groups to apply correction")
         log.warning("Step will be skipped")
-        output.meta.cal_step.lastframe = 'SKIPPED'
+        output.meta.cal_step.lastframe = "SKIPPED"
 
     return output