style: Fix unnecessary-assign (RET504) (#4043)

gui/wxpython/core/utils.py

@@ -1179,8 +1179,7 @@ def unregisterPid(pid):
 def get_shell_pid(env=None):
     """Get shell PID from the GIS environment or None"""
     try:
-        shell_pid = int(grass.gisenv(env=env)["PID"])
-        return shell_pid
+        return int(grass.gisenv(env=env)["PID"])
     except (KeyError, ValueError) as error:
         Debug.msg(
             1, "No PID for GRASS shell (assuming no shell running): {}".format(error)

gui/wxpython/core/workspace.py

@@ -92,9 +92,7 @@ def __filterValue(self, value):
         :param value:
         """
         value = value.replace("&lt;", "<")
-        value = value.replace("&gt;", ">")
-
-        return value
+        return value.replace("&gt;", ">")
 
     def __getNodeText(self, node, tag, default=""):
         """Get node text"""
@@ -1043,9 +1041,7 @@ def __filterValue(self, value):
         """Make value XML-valid"""
         value = value.replace("<", "&lt;")
         value = value.replace(">", "&gt;")
-        value = value.replace("&", "&amp;")
-
-        return value
+        return value.replace("&", "&amp;")
 
     def __writeLayer(self, mapTree, item):
         """Write bunch of layers to GRASS Workspace XML file"""

gui/wxpython/datacatalog/tree.py

@@ -359,8 +359,7 @@ def _getValidSavedGrassDBs(self):
         dbs = UserSettings.Get(
             group="datacatalog", key="grassdbs", subkey="listAsString"
         )
-        dbs = [db for db in dbs.split(",") if os.path.isdir(db)]
-        return dbs
+        return [db for db in dbs.split(",") if os.path.isdir(db)]
 
     def _saveGrassDBs(self):
         """Save current grass dbs in tree to settings"""

gui/wxpython/gcp/manager.py

@@ -1792,7 +1792,7 @@ def _getOverWriteDialog(self, maptype, overwrite):
             map_name = "<{}>".format(found["name"])
 
         if found["name"] and not overwrite:
-            overwrite_dlg = wx.MessageDialog(
+            return wx.MessageDialog(
                 self.GetParent(),
                 message=_(
                     "The {map_type} map {map_name} exists. "
@@ -1804,7 +1804,6 @@ def _getOverWriteDialog(self, maptype, overwrite):
                 caption=_("Overwrite?"),
                 style=wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION,
             )
-            return overwrite_dlg
 
     def OnGeorect(self, event):
         """

gui/wxpython/gmodeler/model.py

@@ -2027,9 +2027,7 @@ def _filterValue(self, value):
         :param value:
         """
         value = value.replace("&lt;", "<")
-        value = value.replace("&gt;", ">")
-
-        return value
+        return value.replace("&gt;", ">")
 
     def _getNodeText(self, node, tag, default=""):
         """Get node text"""
@@ -2342,8 +2340,7 @@ def _filterValue(self, value):
         :param value: string to be escaped as XML
         :return: a XML-valid string
         """
-        value = saxutils.escape(value)
-        return value
+        return saxutils.escape(value)
 
     def _header(self):
         """Write header"""

gui/wxpython/gui_core/dialogs.py

@@ -1208,8 +1208,7 @@ def _filter(self, data):
         """Apply filter for strings in data list"""
         flt_data = []
         if len(self.flt_pattern) == 0:
-            flt_data = data[:]
-            return flt_data
+            return data[:]
 
         for dt in data:
             try:
@@ -1872,8 +1871,7 @@ def __init__(
     def GetOpacity(self):
         """Button 'OK' pressed"""
         # return opacity value
-        opacity = float(self.value.GetValue()) / 100
-        return opacity
+        return float(self.value.GetValue()) / 100
 
     def OnApply(self, event):
         self.applyOpacity.emit(value=self.GetOpacity())

gui/wxpython/gui_core/forms.py

@@ -3062,8 +3062,7 @@ def AddBitmapToImageList(self, section, imageList):
             image = wx.Image(iconSectionDict[section]).Scale(
                 16, 16, wx.IMAGE_QUALITY_HIGH
             )
-            idx = imageList.Add(BitmapFromImage(image))
-            return idx
+            return imageList.Add(BitmapFromImage(image))
 
         return -1
 

gui/wxpython/gui_core/gselect.py

@@ -663,8 +663,7 @@ def AddItem(self, value, mapset=None, node=True, parent=None):
 
         data = {"node": node, "mapset": mapset}
 
-        item = self.seltree.AppendItem(parent, text=value, data=data)
-        return item
+        return self.seltree.AppendItem(parent, text=value, data=data)
 
     def OnKeyUp(self, event):
         """Enables to select items using keyboard

gui/wxpython/gui_core/pyedit.py

@@ -301,8 +301,7 @@ def _openFile(self, file_path):
         """
         try:
             with open(file_path, "r") as f:
-                content = f.read()
-                return content
+                return f.read()
         except PermissionError:
             GError(
                 message=_(

gui/wxpython/gui_core/simplelmgr.py

@@ -377,31 +377,27 @@ def GetOptData(self, dcmd, layer, params, propwin):
 
     def AddRaster(self, name, cmd, hidden, dialog):
         """Ads new raster layer."""
-        layer = self._layerList.AddNewLayer(
+        return self._layerList.AddNewLayer(
             name=name, mapType="raster", active=True, cmd=cmd, hidden=hidden
         )
-        return layer
 
     def AddRast3d(self, name, cmd, hidden, dialog):
         """Ads new raster3d layer."""
-        layer = self._layerList.AddNewLayer(
+        return self._layerList.AddNewLayer(
             name=name, mapType="raster_3d", active=True, cmd=cmd, hidden=hidden
         )
-        return layer
 
     def AddVector(self, name, cmd, hidden, dialog):
         """Ads new vector layer."""
-        layer = self._layerList.AddNewLayer(
+        return self._layerList.AddNewLayer(
             name=name, mapType="vector", active=True, cmd=cmd, hidden=hidden
         )
-        return layer
 
     def AddRGB(self, name, cmd, hidden, dialog):
         """Ads new vector layer."""
-        layer = self._layerList.AddNewLayer(
+        return self._layerList.AddNewLayer(
             name=name, mapType="rgb", active=True, cmd=cmd, hidden=hidden
         )
-        return layer
 
     def GetLayerInfo(self, layer, key):
         """Just for compatibility, should be removed in the future"""

gui/wxpython/gui_core/treeview.py

@@ -91,8 +91,7 @@ def OnGetItemText(self, index, column=0):
         """
         node = self._model.GetNodeByIndex(index)
         # remove & because of & needed in menu (&Files)
-        label = node.label.replace("&", "")
-        return label
+        return node.label.replace("&", "")
 
     def OnGetChildrenCount(self, index):
         """Overridden method necessary to communicate with tree model."""
@@ -258,8 +257,7 @@ def OnGetItemText(self, index, column=0):
         if column > 0:
             return node.data.get(self._columns[column], "")
         else:
-            label = node.label.replace("&", "")
-            return label
+            return node.label.replace("&", "")
 
     def OnRightClick(self, event):
         """Select item on right click.

gui/wxpython/gui_core/widgets.py

@@ -1338,11 +1338,7 @@ def _searchModule(self, keys, value):
         nodes.sort(key=self._model.GetIndexOfNode)
         self._results = nodes
         self._resultIndex = -1
-        commands = sorted(
-            [node.data["command"] for node in nodes if node.data["command"]]
-        )
-
-        return commands
+        return sorted([node.data["command"] for node in nodes if node.data["command"]])
 
     def OnSelectModule(self, event=None):
         """Module selected from choice, update command prompt"""

gui/wxpython/history/tree.py

@@ -215,12 +215,10 @@ def _timestampToDay(self, timestamp=None):
             return OLD_DATE
 
         timestamp_datetime = datetime.datetime.fromisoformat(timestamp)
-        day_midnight = datetime.datetime(
+        return datetime.datetime(
             timestamp_datetime.year, timestamp_datetime.month, timestamp_datetime.day
         ).date()
 
-        return day_midnight
-
     def _initHistoryModel(self):
         """Fill tree history model based on the current history log."""
         content_list = self.ReadFromHistory()

gui/wxpython/iclass/digit.py

@@ -126,8 +126,7 @@ def _getNewFeaturesLayer(self):
         return 1
 
     def _getNewFeaturesCat(self):
-        cat = self.mapWindow.GetCurrentCategory()
-        return cat
+        return self.mapWindow.GetCurrentCategory()
 
     def DeleteAreasByCat(self, cats):
         """Delete areas (centroid+boundaries) by categories

gui/wxpython/iscatt/frame.py

@@ -330,8 +330,7 @@ def _newScatterPlotName(self, scatt_id):
         return name
 
     def _getScatterPlotName(self, i):
-        name = "scatter plot %d" % i
-        return name
+        return "scatter plot %d" % i
 
     def NewScatterPlot(self, scatt_id, transpose):
         # TODO needs to be resolved (should be in this class)

gui/wxpython/iscatt/iscatt_core.py

@@ -488,9 +488,7 @@ def GetBandsInfo(self, scatt_id):
         b1_info = self.an_data.GetBandInfo(b1)
         b2_info = self.an_data.GetBandInfo(b2)
 
-        bands_info = {"b1": b1_info, "b2": b2_info}
-
-        return bands_info
+        return {"b1": b1_info, "b2": b2_info}
 
     def DeleScattPlot(self, cat_id, scatt_id):
         if cat_id not in self.cats:
@@ -784,15 +782,13 @@ def idBandsToidScatt(band_1_id, band_2_id, n_bands):
 
     n_b1 = n_bands - 1
 
-    scatt_id = int(
+    return int(
         (band_1_id * (2 * n_b1 + 1) - band_1_id * band_1_id) / 2
         + band_2_id
         - band_1_id
         - 1
     )
 
-    return scatt_id
-
 
 def GetRegion():
     ret, region, msg = RunCommand("g.region", flags="gp", getErrorMsg=True, read=True)

gui/wxpython/iscatt/plots.py

@@ -711,8 +711,7 @@ def GetCoords(self):
         if self.empty_pol:
             return None
 
-        coords = deepcopy(self.pol.xy)
-        return coords
+        return deepcopy(self.pol.xy)
 
     def SetEmpty(self):
         self._setEmptyPol(True)

gui/wxpython/lmgr/frame.py

@@ -2336,13 +2336,12 @@ def MsgDisplayResolution(self, limitText=None):
         )
         if limitText:
             message += "\n\n%s" % _(limitText)
-        dlg = wx.MessageDialog(
+        return wx.MessageDialog(
             parent=self,
             message=message,
             caption=_("Constrain map to region geometry?"),
             style=wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION | wx.CENTRE,
         )
-        return dlg
 
     def _onMapsetWatchdog(self, map_path, map_dest):
         """Current mapset watchdog event handler

gui/wxpython/lmgr/layertree.py

@@ -2428,12 +2428,11 @@ def _createCommandCtrl(self):
         height = 25
         if sys.platform in {"win32", "darwin"}:
             height = 40
-        ctrl = TextCtrl(
+        return TextCtrl(
             self,
             id=wx.ID_ANY,
             value="",
             pos=wx.DefaultPosition,
             size=(self.GetSize()[0] - 100, height),
             style=wx.TE_PROCESS_ENTER | wx.TE_DONTWRAP,
         )
-        return ctrl

gui/wxpython/location_wizard/wizard.py

@@ -743,8 +743,7 @@ def GetSortImages(self):
     def OnGetItemText(self, item, col):
         """Get item text"""
         index = self.itemIndexMap[item]
-        s = str(self.itemDataMap[index][col])
-        return s
+        return str(self.itemDataMap[index][col])
 
     def OnGetItemImage(self, item):
         return -1
@@ -2795,9 +2794,7 @@ def CreateProj4String(self):
             for item in datumparams:
                 proj4string = "%s +%s" % (proj4string, item)
 
-        proj4string = "%s +no_defs" % proj4string
-
-        return proj4string
+        return "%s +no_defs" % proj4string
 
     def OnHelp(self, event):
         """'Help' button clicked"""

gui/wxpython/main_window/frame.py

@@ -2430,13 +2430,12 @@ def MsgDisplayResolution(self, limitText=None):
         )
         if limitText:
             message += "\n\n%s" % _(limitText)
-        dlg = wx.MessageDialog(
+        return wx.MessageDialog(
             parent=self,
             message=message,
             caption=_("Constrain map to region geometry?"),
             style=wx.YES_NO | wx.YES_DEFAULT | wx.ICON_QUESTION | wx.CENTRE,
         )
-        return dlg
 
     def _onMapsetWatchdog(self, map_path, map_dest):
         """Current mapset watchdog event handler

gui/wxpython/nviz/mapwindow.py

@@ -243,7 +243,7 @@ def GetContentScaleFactor(self):
 
     def InitFly(self):
         """Initialize fly through dictionary"""
-        fly = {
+        return {
             "interval": 10,  # interval for timerFly
             "value": [0, 0, 0],  # calculated values for navigation
             "mode": 0,  # fly through mode (0, 1)
@@ -264,8 +264,6 @@ def InitFly(self):
             "flySpeedStep": 2,
         }
 
-        return fly
-
     def OnTimerFly(self, event):
         """Fly event was emitted, move the scene"""
         if self.mouse["use"] != "fly":

gui/wxpython/nviz/wxnviz.py

@@ -2212,9 +2212,7 @@ def Load(self):
                     ]
         wx.EndBusyCursor()
 
-        id = Nviz_load_image(im, self.width, self.height, self.image.HasAlpha())
-
-        return id
+        return Nviz_load_image(im, self.width, self.height, self.image.HasAlpha())
 
     def Draw(self):
         """Draw texture as an image"""

gui/wxpython/psmap/dialogs.py

@@ -3200,8 +3200,7 @@ def getColsChoice(self, parent):
         else:
             cols = []
 
-        choice = Choice(parent=parent, id=wx.ID_ANY, choices=cols)
-        return choice
+        return Choice(parent=parent, id=wx.ID_ANY, choices=cols)
 
     def update(self):
         # feature type

gui/wxpython/psmap/frame.py

@@ -2613,9 +2613,7 @@ def ImageRect(self):
         iH = iH * self.currScale
         x = cW / 2 - iW / 2
         y = cH / 2 - iH / 2
-        imageRect = Rect(int(x), int(y), int(iW), int(iH))
-
-        return imageRect
+        return Rect(int(x), int(y), int(iW), int(iH))
 
     def RedrawSelectBox(self, id):
         """Redraws select box when selected object changes its size"""

gui/wxpython/psmap/instructions.py

@@ -1913,8 +1913,7 @@ def __init__(self, id, env):
         self.instruction = dict(self.defaultInstruction)
 
     def __str__(self):
-        instr = string.Template("raster $raster").substitute(self.instruction)
-        return instr
+        return string.Template("raster $raster").substitute(self.instruction)
 
     def Read(self, instruction, text):
         """Read instruction and save information"""