Oops, really pass a bytes string to the ctypes function.
diff --git a/Lib/encodings/cp720.py b/Lib/encodings/cp720.py
index 548c61f..39390d1 100644
--- a/Lib/encodings/cp720.py
+++ b/Lib/encodings/cp720.py
@@ -175,38 +175,38 @@
'}' # 0x7D -> RIGHT CURLY BRACKET
'~' # 0x7E -> TILDE
'\x7f' # 0x7F -> CONTROL CHARACTER
- '?' # 0x80 -> QUESTION MARK
+ '\x80'
'\x81'
- '?' # 0x82 -> QUESTION MARK
- '?' # 0x83 -> QUESTION MARK
- '?' # 0x84 -> QUESTION MARK
- '?' # 0x85 -> QUESTION MARK
- '?' # 0x86 -> QUESTION MARK
- '?' # 0x87 -> QUESTION MARK
- '?' # 0x88 -> QUESTION MARK
- '?' # 0x89 -> QUESTION MARK
- '?' # 0x8A -> QUESTION MARK
- '?' # 0x8B -> QUESTION MARK
- '?' # 0x8C -> QUESTION MARK
+ '\xe9' # 0x82 -> LATIN SMALL LETTER E WITH ACUTE
+ '\xe2' # 0x83 -> LATIN SMALL LETTER A WITH CIRCUMFLEX
+ '\x84'
+ '\xe0' # 0x85 -> LATIN SMALL LETTER A WITH GRAVE
+ '\x86'
+ '\xe7' # 0x87 -> LATIN SMALL LETTER C WITH CEDILLA
+ '\xea' # 0x88 -> LATIN SMALL LETTER E WITH CIRCUMFLEX
+ '\xeb' # 0x89 -> LATIN SMALL LETTER E WITH DIAERESIS
+ '\xe8' # 0x8A -> LATIN SMALL LETTER E WITH GRAVE
+ '\xef' # 0x8B -> LATIN SMALL LETTER I WITH DIAERESIS
+ '\xee' # 0x8C -> LATIN SMALL LETTER I WITH CIRCUMFLEX
'\x8d'
- '?' # 0x8E -> QUESTION MARK
+ '\x8e'
'\x8f'
'\x90'
- '?' # 0x91 -> QUESTION MARK
- '?' # 0x92 -> QUESTION MARK
- '?' # 0x93 -> QUESTION MARK
- '?' # 0x94 -> QUESTION MARK
- '?' # 0x95 -> QUESTION MARK
- '?' # 0x96 -> QUESTION MARK
- '?' # 0x97 -> QUESTION MARK
- '?' # 0x98 -> QUESTION MARK
- '?' # 0x99 -> QUESTION MARK
- '?' # 0x9A -> QUESTION MARK
- '?' # 0x9B -> QUESTION MARK
- '?' # 0x9C -> QUESTION MARK
+ '\u0651' # 0x91 -> ARABIC SHADDA
+ '\u0652' # 0x92 -> ARABIC SUKUN
+ '\xf4' # 0x93 -> LATIN SMALL LETTER O WITH CIRCUMFLEX
+ '\xa4' # 0x94 -> CURRENCY SIGN
+ '\u0640' # 0x95 -> ARABIC TATWEEL
+ '\xfb' # 0x96 -> LATIN SMALL LETTER U WITH CIRCUMFLEX
+ '\xf9' # 0x97 -> LATIN SMALL LETTER U WITH GRAVE
+ '\u0621' # 0x98 -> ARABIC LETTER HAMZA
+ '\u0622' # 0x99 -> ARABIC LETTER ALEF WITH MADDA ABOVE
+ '\u0623' # 0x9A -> ARABIC LETTER ALEF WITH HAMZA ABOVE
+ '\u0624' # 0x9B -> ARABIC LETTER WAW WITH HAMZA ABOVE
+ '\xa3' # 0x9C -> POUND SIGN
'\u0625' # 0x9D -> ARABIC LETTER ALEF WITH HAMZA BELOW
- '?' # 0x9E -> QUESTION MARK
- '?' # 0x9F -> QUESTION MARK
+ '\u0626' # 0x9E -> ARABIC LETTER YEH WITH HAMZA ABOVE
+ '\u0627' # 0x9F -> ARABIC LETTER ALEF
'\u0628' # 0xA0 -> ARABIC LETTER BEH
'\u0629' # 0xA1 -> ARABIC LETTER TEH MARBUTA
'\u062a' # 0xA2 -> ARABIC LETTER TEH