values are actual strings. Formerly, unsupported types could be introduced
unintentionally.
- * Duplicate sections or options now raise either
+ * Duplicate sections or options from a single source now raise either
:exc:`~configparser.DuplicateSectionError` or
:exc:`~configparser.DuplicateOptionError`. Formerly, duplicates would
silently overwrite a previous entry.
* Comments now can be indented. Consequently, for **;** or **#** to appear at
the start of a line in multiline values, it has to be interpolated. This
- keep comment prefix characters in value from being mistaken as comments.
+ keeps comment prefix characters in values from being mistaken as comments.
* ``""`` is now a valid value and is no longer automatically converted to an
empty string. For empty strings, use ``"option ="`` in a line.