r.in.wms: Removed bare 'except' and repositioned imports (#4622)

.flake8

@@ -88,9 +88,6 @@ per-file-ignores =
     python/grass/*/*/__init__.py: F403
     python/grass/*/*/*/__init__.py: F403
     # E402 module level import not at top of file
-    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/db.out.ogr/db.out.ogr.py: F841
     scripts/g.extension/g.extension.py: E501

scripts/r.in.wms/srs.py

@@ -79,7 +79,7 @@ def __init__(self, srs):
             # code is always the last value
             try:
                 self.code = int(values[-1])
-            except:
+            except (IndexError, ValueError):
                 self.code = values[-1]
 
         elif len(values) == 2:  # it's an authority:code code

scripts/r.in.wms/wms_drv.py

@@ -18,35 +18,32 @@
 """
 
 import socket
-import grass.script as gs
-
 from time import sleep
 
+import grass.script as gs
+
 try:
     from osgeo import gdal
-except:
+except ImportError:
     gs.fatal(
         _(
             "Unable to load GDAL Python bindings (requires package 'python-gdal' "
             "being installed)"
         )
     )
 
-import numpy as np
-
-np.arrayrange = np.arange
-
-from math import pi, floor
-
-from urllib.error import HTTPError
 from http.client import HTTPException
-
+from math import floor, pi
+from urllib.error import HTTPError
 from xml.etree.ElementTree import ParseError
 
-from wms_base import GetEpsg, GetSRSParamVal, WMSBase
+import numpy as np
 
-from wms_cap_parsers import WMTSCapabilitiesTree, OnEarthCapabilitiesTree
 from srs import Srs
+from wms_base import GetEpsg, GetSRSParamVal, WMSBase
+from wms_cap_parsers import OnEarthCapabilitiesTree, WMTSCapabilitiesTree
+
+np.arrayrange = np.arange
 
 
 class WMSDrv(WMSBase):

scripts/r.in.wms/wms_gdal_drv.py

@@ -17,7 +17,7 @@
 
 try:
     from osgeo import gdal
-except:
+except ImportError:
     gs.fatal(
         _(
             "Unable to load GDAL Python bindings (requires package 'python-gdal' being "