PEP-654: errors --> exceptions (#1871)

pep-0654.rst

@@ -143,7 +143,7 @@ and ``try: ... except BaseExceptionGroup: ...``.
 
 Both have a constructor that takes two positional-only arguments: a message
 string and a sequence of the nested exceptions, which are exposed in the
-fields ``message`` and ``errors``. For example:
+fields ``message`` and ``exceptions``. For example:
 ``ExceptionGroup('issues', [ValueError('bad value'), TypeError('bad type')])``.
 The difference between them is that ``ExceptionGroup`` can only wrap
 ``Exception`` subclasses while ``BaseExceptionGroup`` can wrap any
@@ -383,7 +383,7 @@ recursively, as follows:
 
         tbs.append(exc.__traceback__)
         if isinstance(exc, ExceptionGroup):
-            for e in exc.errors:
+            for e in exc.exceptions:
                 yield from leaf_generator(e, tbs)
         else:
             # exc is a leaf exception and its traceback
@@ -491,7 +491,7 @@ Exceptions are matched using a subclass check. For example:
    try:
        low_level_os_operation()
    except *OSError as eg:
-       for e in eg.errors:
+       for e in eg.exceptions:
            print(type(e).__name__)
 
 could output: