checks: flake8 F841 (local variable assigned to but never used) fixes…

… in scripts directory part 1 (OSGeo#4238)

.flake8

@@ -153,9 +153,7 @@ per-file-ignores =
     python/grass/*/*/__init__.py: F401, F403
     python/grass/*/*/*/__init__.py: F401, F403
     # E402 module level import not at top of file
-    scripts/d.polar/d.polar.py: F841
-    scripts/r.in.wms/wms_gdal_drv.py: F841, E722
-    scripts/r.in.wms/wms_cap_parsers.py: F841
+    scripts/r.in.wms/wms_gdal_drv.py: E722
     scripts/r.in.wms/wms_drv.py: E402, E722
     scripts/r.in.wms/srs.py: E722
     scripts/r.semantic.label/r.semantic.label.py: E501

scripts/d.polar/d.polar.py

@@ -202,7 +202,6 @@ def plot_eps(psout):
     epsscale = 0.1
     frameallowance = 1.1
     halfframe = 3000
-    center = (halfframe, halfframe)
     scale = halfframe / (outerradius * frameallowance)
 
     diagramlinewidth = halfframe / 400
@@ -211,11 +210,6 @@ def plot_eps(psout):
     diagramfontsize = halfframe / 20
     halfframe_2 = halfframe * 2
 
-    averagedirectioncolor = 1  # (blue)
-    diagramcolor = 4  # (red)
-    circlecolor = 2  # (green)
-    axescolor = 0  # (black)
-
     northjustification = 2
     eastjustification = 6
     southjustification = 8
@@ -287,7 +281,6 @@ def plot_eps(psout):
     )
     outf.write(s)
 
-    sublength = len(outercircle) - 2
     (x, y) = outercircle[1]
     outf.write("%.2f %.2f moveto\n" % (x * scale + halfframe, y * scale + halfframe))
     for x, y in outercircle[2:]:
@@ -343,7 +336,6 @@ def plot_eps(psout):
     )
     outf.write(s)
 
-    sublength = len(sine_cosine_replic) - 2
     (x, y) = sine_cosine_replic[1]
     outf.write("%.2f %.2f moveto\n" % (x * scale + halfframe, y * scale + halfframe))
     for x, y in sine_cosine_replic[2:]:
@@ -369,7 +361,6 @@ def plot_eps(psout):
     s = t.substitute(DIAGRAMLINEWIDTH=diagramlinewidth)
     outf.write(s)
 
-    sublength = len(vector) - 2
     (x, y) = vector[1]
     outf.write("%.2f %.2f moveto\n" % (x * scale + halfframe, y * scale + halfframe))
     for x, y in vector[2:]:

scripts/r.in.wms/wms_cap_parsers.py

@@ -131,7 +131,7 @@ def _checkFormats(self, capability):
         """!Check if format element is defined."""
         request = self._find(capability, "Request")
         get_map = self._find(request, "GetMap")
-        formats = self._findall(get_map, "Format")
+        self._findall(get_map, "Format")
 
     def _checkLayerTree(self, parent_layer, first=True):
         """!Recursively check layer tree and manage inheritance in the tree"""

scripts/r.in.wms/wms_gdal_drv.py

@@ -60,7 +60,6 @@ def _createXML(self):
 
         gdal_wms = ET.Element("GDAL_WMS")
         service = ET.SubElement(gdal_wms, "Service")
-        name = ET.Element("name")
         service.set("name", "WMS")
 
         version = ET.SubElement(service, "Version")