pylint: Add string formatting checks, use f-string and lazy % formatting

Enable following checks in pylint:
- C0209: Formatting a regular string which could be a f-string
- W1202: Use lazy % formatting in logging functions
- W1203: Use lazy % formatting in logging functions
Use f-string for string formatting where recommended and lazy % formatting in logging.

Change-Id: I14924d27e0f800c47af1ec903be4c51f24191d26
Reviewed-by: Antti Kokko <antti.kokko@qt.io>

1 files changed, 5 insertions, 5 deletions

diff --git a/packaging-tools/optionparser.py b/packaging-tools/optionparser.py
index 853a826e7..2ceaff343 100644
--- a/packaging-tools/optionparser.py
+++ b/packaging-tools/optionparser.py
@@ -38,7 +38,7 @@ class PackagingOptions:
     """Utility class to read options from configuration file that follows .ini file format."""
     def __init__(self, confFile):
         if not os.path.isfile(confFile):
-            raise IOError("Not a valid file: {0}".format(confFile))
+            raise IOError(f"Not a valid file: {confFile}")
         self.config = ConfigParser(os.environ)
         self.config.optionxform = str
         self.config.read(confFile)
@@ -50,9 +50,9 @@ class PackagingOptions:
             try:
                 dict1[option] = self.config.get(section, option)
                 if dict1[option] == -1:
-                    print("skip: %s" % option)
+                    print(f"skip: {option}")
             except Exception:
-                print("exception on %s!" % option)
+                print(f"exception on {option}!")
                 dict1[option] = None
         return dict1
 
@@ -70,10 +70,10 @@ class PackagingOptions:
 
     def verbose(self):
         for section in self.config.sections():
-            print("[" + section + "]")
+            print(f"[{section}]")
             options = self.config.options(section)
             for option in options:
-                print("{0} = {1}".format(option, self.config.get(section, option)))
+                print(f"{option} = {self.config.get(section, option)}")
             print