[doc] fix typo (GH-99143)

diff --git a/Doc/tutorial/errors.rst b/Doc/tutorial/errors.rst
index 67bb19556681c0629d07749b28529f3b0fc6310b..e09c829b8e97213140014646f9ebae19ec08ccec 100644 (file)
--- a/Doc/tutorial/errors.rst
+++ b/Doc/tutorial/errors.rst
@@ -496,7 +496,7 @@ Raising and Handling Multiple Unrelated Exceptions
 ==================================================
 
 There are situations where it is necessary to report several exceptions that
-have occurred. This it often the case in concurrency frameworks, when several
+have occurred. This is often the case in concurrency frameworks, when several
 tasks may have failed in parallel, but there are also other use cases where
 it is desirable to continue execution and collect multiple errors rather than
 raise the first exception.