Issue #26778: Fixed "a/an/and" typos in code comment and documentation.
diff --git a/Lib/decimal.py b/Lib/decimal.py
index d274552..20d9468 100644
--- a/Lib/decimal.py
+++ b/Lib/decimal.py
@@ -224,7 +224,7 @@
class ConversionSyntax(InvalidOperation):
"""Trying to convert badly formed string.
- This occurs and signals invalid-operation if an string is being
+ This occurs and signals invalid-operation if a string is being
converted to a number and it does not conform to the numeric string
syntax. The result is [0,qNaN].
"""