Fix/unify license spelling, linter fixes, declare GPLv2 using the cor…

…rect SPDX identifier

ADDITIONAL-LICENSES

@@ -11,4 +11,4 @@ lib/jsonencoder.py is licensed under PSFL, https://www.python.org/download/relea
 scripts/gamecontrollerdb.txt is taken from Simple DirectMedia Layer library and licensed under zlib license.
 lib/xwrappers.py and lib/vdf.py are part of SC-Controller, licensed under GPL2 as rest of the project.
 
-Everything else is licensed under GPL2, as described in 'LICENCE' file.
+Everything else is licensed under GPL2, as described in 'LICENSE' file.

scc/gui/icon_chooser.py

@@ -10,7 +10,10 @@
 from scc.gui.editor import Editor
 from scc.paths import get_menuicons_path
 from scc.tools import find_icon
-import os, traceback, logging, re
+import os
+import traceback
+import logging
+import re
 log = logging.getLogger("IconChooser")
 RE_URL = re.compile(r"(.*)(https?://[^ ]+)(.*)")
 DEFAULT_ICON_CATEGORIES = ( "items", "media", "weapons", "system" )
@@ -47,7 +50,7 @@ def on_btUserFolder_activate_link(self, *a):
 		for c in DEFAULT_ICON_CATEGORIES:
 			try:
 				os.makedirs(os.path.join(get_menuicons_path(), c))
-			except:
+			except Exception:
 				# Dir. exists
 				pass
 
@@ -163,13 +166,14 @@ def on_menuicons_loaded(self, icons):
 				# Try to select 1st category, but ignore if that fails
 				tvCategories.get_selection().select_path(( 0, ))
 				self.on_tvCategories_cursor_changed(tvCategories)
-			except: pass
+			except Exception:
+				pass
 
 
 	@staticmethod
 	def find_license(path, name):
 		""" Parses LICENSE file, if any, and returns license for give file """
-		licensefile = os.path.join(path, "LICENCES")
+		licensefile = os.path.join(path, "LICENSES")
 		if not os.path.exists(licensefile):
 			return None
 		for line in open(licensefile, "r").readlines():

setup.py

@@ -29,7 +29,7 @@
 ] + [ # menu icons subfolders
 	(
 		'share/scc/images/menu-icons/' + x.split("/")[-1],
-		[ x + "/LICENCES" ] + glob.glob(x + "/*.png")
+		[ x + "/LICENSES" ] + glob.glob(x + "/*.png")
 	) for x in glob.glob("images/menu-icons/*")
 ]
 
@@ -62,7 +62,7 @@
 				'scripts/scc-osd-radial-menu',
 				'scripts/scc-osd-show-bindings',
 			],
-			license = 'GPL2',
+			license = 'GPL-2.0-only',
 			platforms = ['Linux'],
 			ext_modules = [
 				Extension('libuinput', sources = ['scc/uinput.c']),