Xqt has submitted this change. ( 
https://gerrit.wikimedia.org/r/c/pywikibot/core/+/1341984?usp=email )

Change subject: Use lazy logging and f-strings for bot and script messages
......................................................................

Use lazy logging and f-strings for bot and script messages

Defer interpolation in three logging calls and use f-strings for
seven ordinary messages. Preserve message text, pluralization,
whitespace and timing precision.

Change-Id: Id558315871696549a6a4e2abfff19273f23191a8
---
M pywikibot/bot.py
M pywikibot/scripts/shell.py
M pywikibot/scripts/version.py
M pywikibot/scripts/wrapper.py
4 files changed, 25 insertions(+), 28 deletions(-)

Approvals:
  Xqt: Verified; Looks good to me, approved




diff --git a/pywikibot/bot.py b/pywikibot/bot.py
index 879d253..b963796 100644
--- a/pywikibot/bot.py
+++ b/pywikibot/bot.py
@@ -497,8 +497,8 @@

     # new framework release/revision? (handle_args needs to be called first)
     try:
-        _log('VERSION: {}'.format(version.getversion(
-            online=config.log_pywiki_repo_version).strip()))
+        _log('VERSION: %s', version.getversion(
+            online=config.log_pywiki_repo_version).strip())
     except VersionParseError:
         _exception()

@@ -961,20 +961,19 @@
         messages.append(
             'Unable to execute script because no generator was defined.')
     if missing_parameters:
-        messages.append('Missing parameter{s} "{params}".'
-                        .format(s='s' if len(missing_parameters) > 1 else '',
-                                params='", "'.join(missing_parameters)))
+        suffix = 's' if len(missing_parameters) > 1 else ''
+        params = '", "'.join(missing_parameters)
+        messages.append(f'Missing parameter{suffix} "{params}".')
     if missing_action:
         messages.append('No action defined.')
     if unknown_parameters:
-        messages.append('Unknown parameter{s} "{params}".'
-                        .format(s='s' if len(unknown_parameters) > 1 else '',
-                                params='", "'.join(unknown_parameters)))
+        suffix = 's' if len(unknown_parameters) > 1 else ''
+        params = '", "'.join(unknown_parameters)
+        messages.append(f'Unknown parameter{suffix} "{params}".')
     if missing_dependencies:
-        messages.append('Missing dependenc{s} "{deps}".'
-                        .format(
-                            s='ies' if len(missing_dependencies) > 1 else 'y',
-                            deps='", "'.join(missing_dependencies)))
+        suffix = 'ies' if len(missing_dependencies) > 1 else 'y'
+        deps = '", "'.join(missing_dependencies)
+        messages.append(f'Missing dependenc{suffix} "{deps}".')
     if additional_text:
         messages.append(additional_text.strip())
     if messages:
@@ -997,10 +996,9 @@
     command_log = Path(config.datafilepath('logs', 'commands.log'))
     mode = 'a' if command_log.exists() else 'w'
     with command_log.open(mode, encoding='utf-8') as command_log_file:
-        command_log_file.write('{} r{} Python {} '
-                               .format(iso_date,
-                                       version.getversiondict()['rev'],
-                                       sys.version.split()[0]))
+        command_log_file.write(
+            f"{iso_date} r{version.getversiondict()['rev']} "
+            f'Python {sys.version.split()[0]} ')
         command_log_file.write(' '.join(args) + os.linesep)


@@ -1422,8 +1420,8 @@
             pywikibot.info('Execution time: ' + used)

             if self.counter['read']:
-                pywikibot.info('Read operation time: {:.1f} seconds'
-                               .format(read_seconds / self.counter['read']))
+                pywikibot.info('Read operation time: %.1f seconds',
+                               read_seconds / self.counter['read'])

             for op, count in self.counter.items():
                 if not count or op == 'read':
diff --git a/pywikibot/scripts/shell.py b/pywikibot/scripts/shell.py
index 0c3f5d8..8e613a8 100755
--- a/pywikibot/scripts/shell.py
+++ b/pywikibot/scripts/shell.py
@@ -44,8 +44,7 @@
         warn_type = 'Unknown'

     if args:
-        print('{} arguments: {}\n'  # noqa: T201
-              .format(warn_type, ', '.join(args)))
+        print(f'{warn_type} arguments: {", ".join(args)}\n')  # noqa: T201

     # Set up interactive features such as command history.
     # This is defined in the site module of the Python Standard Library,
diff --git a/pywikibot/scripts/version.py b/pywikibot/scripts/version.py
index f65f532..03c6d54 100755
--- a/pywikibot/scripts/version.py
+++ b/pywikibot/scripts/version.py
@@ -105,8 +105,8 @@
                      'PYWIKIBOT_NO_USER_CONFIG'])
     for environ_name in sorted(settings):
         pywikibot.info(
-            '{}: {}'.format(environ_name,
-                            os.environ.get(environ_name, 'Not set') or "''"))
+            '%s: %s', environ_name,
+            os.environ.get(environ_name, 'Not set') or "''")

     pywikibot.info('Config base dir: ' + pywikibot.config.base_dir)

diff --git a/pywikibot/scripts/wrapper.py b/pywikibot/scripts/wrapper.py
index b150364..4ea366d 100755
--- a/pywikibot/scripts/wrapper.py
+++ b/pywikibot/scripts/wrapper.py
@@ -220,9 +220,9 @@
     else:
         format_string = '\nA package necessary for {} is {}.'
     print(format_string.format(script or 'pywikibot', variant))
-    print('Please {} required module{} with:\n\n'
-          .format('install' if variant == 'missing' else 'update',
-                  's' if len(requirements) > 1 else ''))
+    action = 'install' if variant == 'missing' else 'update'
+    suffix = 's' if len(requirements) > 1 else ''
+    print(f'Please {action} required module{suffix} with:\n\n')

     for requirement in requirements:
         print(f"    pip install \"{str(requirement).partition(';')[0]}\"\n")
@@ -489,9 +489,9 @@
     if global_args:  # don't use sys.argv
         unknown_args = pwb.handle_args(global_args)
         if unknown_args:
-            print('ERROR: unknown pwb.py argument{}: {}\n'
-                  .format('' if len(unknown_args) == 1 else 's',
-                          ', '.join(unknown_args)))
+            suffix = '' if len(unknown_args) == 1 else 's'
+            print(f'ERROR: unknown pwb.py argument{suffix}: '
+                  f'{", ".join(unknown_args)}\n')
             return False

     if not filename:

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Gerrit-MessageType: merged
Gerrit-Project: pywikibot/core
Gerrit-Branch: master
Gerrit-Change-Id: Id558315871696549a6a4e2abfff19273f23191a8
Gerrit-Change-Number: 1341984
Gerrit-PatchSet: 2
Gerrit-Owner: Mahveotm <[email protected]>
Gerrit-Reviewer: Xqt <[email protected]>
Gerrit-Reviewer: jenkins-bot
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