Closes #27904: Improved logging statements to defer formatting until needed.

4 files changed, 6 insertions, 6 deletions

diff --git a/Doc/library/contextlib.rst b/Doc/library/contextlib.rst
index 810cea8..dd34c96 100644
--- a/Doc/library/contextlib.rst
+++ b/Doc/library/contextlib.rst
@@ -590,10 +590,10 @@ single definition::
             self.name = name
 
         def __enter__(self):
-            logging.info('Entering: {}'.format(self.name))
+            logging.info('Entering: %s', self.name)
 
         def __exit__(self, exc_type, exc, exc_tb):
-            logging.info('Exiting: {}'.format(self.name))
+            logging.info('Exiting: %s', self.name)
 
 Instances of this class can be used as both a context manager::
 
diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst
index a1cf241..fefd6ab 100644
--- a/Doc/library/shutil.rst
+++ b/Doc/library/shutil.rst
@@ -425,7 +425,7 @@ Another example that uses the *ignore* argument to add a logging call::
    import logging
 
    def _logpath(path, names):
-       logging.info('Working in %s' % path)
+       logging.info('Working in %s', path)
        return []   # nothing will be ignored
 
    copytree(source, destination, ignore=_logpath)
diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
index 3eaf166..d902a15 100644
--- a/Doc/library/typing.rst
+++ b/Doc/library/typing.rst
@@ -204,7 +204,7 @@ A user-defined class can be defined as a generic class.
            return self.value
 
        def log(self, message: str) -> None:
-           self.logger.info('{}: {}'.format(self.name, message))
+           self.logger.info('%s: %s', self.name, message)
 
 ``Generic[T]`` as a base class defines that the class ``LoggedVar`` takes a
 single type parameter ``T`` . This also makes ``T`` valid as a type within the
diff --git a/Doc/whatsnew/3.2.rst b/Doc/whatsnew/3.2.rst
index 9f3584d..3d237ea 100644
--- a/Doc/whatsnew/3.2.rst
+++ b/Doc/whatsnew/3.2.rst
@@ -1253,9 +1253,9 @@ definition::
 
     @contextmanager
     def track_entry_and_exit(name):
-        logging.info('Entering: {}'.format(name))
+        logging.info('Entering: %s', name)
         yield
-        logging.info('Exiting: {}'.format(name))
+        logging.info('Exiting: %s', name)
 
 Formerly, this would have only been usable as a context manager::