diff --git a/Doc/library/codecs.rst b/Doc/library/codecs.rst
index cebde98b261..a6c0df14ec8 100644
--- a/Doc/library/codecs.rst
+++ b/Doc/library/codecs.rst
@@ -925,6 +925,8 @@ particular, the following variants typically exist:
 +-----------------+--------------------------------+--------------------------------+
 | cp857           | 857, IBM857                    | Turkish                        |
 +-----------------+--------------------------------+--------------------------------+
+| cp858           | 858, IBM858                    | Western Europe                 |
++-----------------+--------------------------------+--------------------------------+
 | cp860           | 860, IBM860                    | Portuguese                     |
 +-----------------+--------------------------------+--------------------------------+
 | cp861           | 861, CP-IS, IBM861             | Icelandic                      |
diff --git a/Lib/encodings/aliases.py b/Lib/encodings/aliases.py
index 992eef4bcdd..a54cf774b7b 100644
--- a/Lib/encodings/aliases.py
+++ b/Lib/encodings/aliases.py
@@ -146,6 +146,11 @@ aliases = {
     'csibm857'           : 'cp857',
     'ibm857'             : 'cp857',
 
+    # cp858 codec
+    '858'                : 'cp858',
+    'csibm858'           : 'cp858',
+    'ibm858'             : 'cp858',
+
     # cp860 codec
     '860'                : 'cp860',
     'csibm860'           : 'cp860',
diff --git a/Lib/encodings/cp858.py b/Lib/encodings/cp858.py
new file mode 100644
index 00000000000..7ba7621f8fb
--- /dev/null
+++ b/Lib/encodings/cp858.py
@@ -0,0 +1,698 @@
+""" Python Character Mapping Codec for CP858, modified from cp850.
+
+"""
+
+import codecs
+
+### Codec APIs
+
+class Codec(codecs.Codec):
+
+    def encode(self,input,errors='strict'):
+        return codecs.charmap_encode(input,errors,encoding_map)
+
+    def decode(self,input,errors='strict'):
+        return codecs.charmap_decode(input,errors,decoding_table)
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    def encode(self, input, final=False):
+        return codecs.charmap_encode(input,self.errors,encoding_map)[0]
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+    def decode(self, input, final=False):
+        return codecs.charmap_decode(input,self.errors,decoding_table)[0]
+
+class StreamWriter(Codec,codecs.StreamWriter):
+    pass
+
+class StreamReader(Codec,codecs.StreamReader):
+    pass
+
+### encodings module API
+
+def getregentry():
+    return codecs.CodecInfo(
+        name='cp858',
+        encode=Codec().encode,
+        decode=Codec().decode,
+        incrementalencoder=IncrementalEncoder,
+        incrementaldecoder=IncrementalDecoder,
+        streamreader=StreamReader,
+        streamwriter=StreamWriter,
+    )
+
+### Decoding Map
+
+decoding_map = codecs.make_identity_dict(range(256))
+decoding_map.update({
+    0x0080: 0x00c7,     #  LATIN CAPITAL LETTER C WITH CEDILLA
+    0x0081: 0x00fc,     #  LATIN SMALL LETTER U WITH DIAERESIS
+    0x0082: 0x00e9,     #  LATIN SMALL LETTER E WITH ACUTE
+    0x0083: 0x00e2,     #  LATIN SMALL LETTER A WITH CIRCUMFLEX
+    0x0084: 0x00e4,     #  LATIN SMALL LETTER A WITH DIAERESIS
+    0x0085: 0x00e0,     #  LATIN SMALL LETTER A WITH GRAVE
+    0x0086: 0x00e5,     #  LATIN SMALL LETTER A WITH RING ABOVE
+    0x0087: 0x00e7,     #  LATIN SMALL LETTER C WITH CEDILLA
+    0x0088: 0x00ea,     #  LATIN SMALL LETTER E WITH CIRCUMFLEX
+    0x0089: 0x00eb,     #  LATIN SMALL LETTER E WITH DIAERESIS
+    0x008a: 0x00e8,     #  LATIN SMALL LETTER E WITH GRAVE
+    0x008b: 0x00ef,     #  LATIN SMALL LETTER I WITH DIAERESIS
+    0x008c: 0x00ee,     #  LATIN SMALL LETTER I WITH CIRCUMFLEX
+    0x008d: 0x00ec,     #  LATIN SMALL LETTER I WITH GRAVE
+    0x008e: 0x00c4,     #  LATIN CAPITAL LETTER A WITH DIAERESIS
+    0x008f: 0x00c5,     #  LATIN CAPITAL LETTER A WITH RING ABOVE
+    0x0090: 0x00c9,     #  LATIN CAPITAL LETTER E WITH ACUTE
+    0x0091: 0x00e6,     #  LATIN SMALL LIGATURE AE
+    0x0092: 0x00c6,     #  LATIN CAPITAL LIGATURE AE
+    0x0093: 0x00f4,     #  LATIN SMALL LETTER O WITH CIRCUMFLEX
+    0x0094: 0x00f6,     #  LATIN SMALL LETTER O WITH DIAERESIS
+    0x0095: 0x00f2,     #  LATIN SMALL LETTER O WITH GRAVE
+    0x0096: 0x00fb,     #  LATIN SMALL LETTER U WITH CIRCUMFLEX
+    0x0097: 0x00f9,     #  LATIN SMALL LETTER U WITH GRAVE
+    0x0098: 0x00ff,     #  LATIN SMALL LETTER Y WITH DIAERESIS
+    0x0099: 0x00d6,     #  LATIN CAPITAL LETTER O WITH DIAERESIS
+    0x009a: 0x00dc,     #  LATIN CAPITAL LETTER U WITH DIAERESIS
+    0x009b: 0x00f8,     #  LATIN SMALL LETTER O WITH STROKE
+    0x009c: 0x00a3,     #  POUND SIGN
+    0x009d: 0x00d8,     #  LATIN CAPITAL LETTER O WITH STROKE
+    0x009e: 0x00d7,     #  MULTIPLICATION SIGN
+    0x009f: 0x0192,     #  LATIN SMALL LETTER F WITH HOOK
+    0x00a0: 0x00e1,     #  LATIN SMALL LETTER A WITH ACUTE
+    0x00a1: 0x00ed,     #  LATIN SMALL LETTER I WITH ACUTE
+    0x00a2: 0x00f3,     #  LATIN SMALL LETTER O WITH ACUTE
+    0x00a3: 0x00fa,     #  LATIN SMALL LETTER U WITH ACUTE
+    0x00a4: 0x00f1,     #  LATIN SMALL LETTER N WITH TILDE
+    0x00a5: 0x00d1,     #  LATIN CAPITAL LETTER N WITH TILDE
+    0x00a6: 0x00aa,     #  FEMININE ORDINAL INDICATOR
+    0x00a7: 0x00ba,     #  MASCULINE ORDINAL INDICATOR
+    0x00a8: 0x00bf,     #  INVERTED QUESTION MARK
+    0x00a9: 0x00ae,     #  REGISTERED SIGN
+    0x00aa: 0x00ac,     #  NOT SIGN
+    0x00ab: 0x00bd,     #  VULGAR FRACTION ONE HALF
+    0x00ac: 0x00bc,     #  VULGAR FRACTION ONE QUARTER
+    0x00ad: 0x00a1,     #  INVERTED EXCLAMATION MARK
+    0x00ae: 0x00ab,     #  LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+    0x00af: 0x00bb,     #  RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+    0x00b0: 0x2591,     #  LIGHT SHADE
+    0x00b1: 0x2592,     #  MEDIUM SHADE
+    0x00b2: 0x2593,     #  DARK SHADE
+    0x00b3: 0x2502,     #  BOX DRAWINGS LIGHT VERTICAL
+    0x00b4: 0x2524,     #  BOX DRAWINGS LIGHT VERTICAL AND LEFT
+    0x00b5: 0x00c1,     #  LATIN CAPITAL LETTER A WITH ACUTE
+    0x00b6: 0x00c2,     #  LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+    0x00b7: 0x00c0,     #  LATIN CAPITAL LETTER A WITH GRAVE
+    0x00b8: 0x00a9,     #  COPYRIGHT SIGN
+    0x00b9: 0x2563,     #  BOX DRAWINGS DOUBLE VERTICAL AND LEFT
+    0x00ba: 0x2551,     #  BOX DRAWINGS DOUBLE VERTICAL
+    0x00bb: 0x2557,     #  BOX DRAWINGS DOUBLE DOWN AND LEFT
+    0x00bc: 0x255d,     #  BOX DRAWINGS DOUBLE UP AND LEFT
+    0x00bd: 0x00a2,     #  CENT SIGN
+    0x00be: 0x00a5,     #  YEN SIGN
+    0x00bf: 0x2510,     #  BOX DRAWINGS LIGHT DOWN AND LEFT
+    0x00c0: 0x2514,     #  BOX DRAWINGS LIGHT UP AND RIGHT
+    0x00c1: 0x2534,     #  BOX DRAWINGS LIGHT UP AND HORIZONTAL
+    0x00c2: 0x252c,     #  BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
+    0x00c3: 0x251c,     #  BOX DRAWINGS LIGHT VERTICAL AND RIGHT
+    0x00c4: 0x2500,     #  BOX DRAWINGS LIGHT HORIZONTAL
+    0x00c5: 0x253c,     #  BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
+    0x00c6: 0x00e3,     #  LATIN SMALL LETTER A WITH TILDE
+    0x00c7: 0x00c3,     #  LATIN CAPITAL LETTER A WITH TILDE
+    0x00c8: 0x255a,     #  BOX DRAWINGS DOUBLE UP AND RIGHT
+    0x00c9: 0x2554,     #  BOX DRAWINGS DOUBLE DOWN AND RIGHT
+    0x00ca: 0x2569,     #  BOX DRAWINGS DOUBLE UP AND HORIZONTAL
+    0x00cb: 0x2566,     #  BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
+    0x00cc: 0x2560,     #  BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
+    0x00cd: 0x2550,     #  BOX DRAWINGS DOUBLE HORIZONTAL
+    0x00ce: 0x256c,     #  BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
+    0x00cf: 0x00a4,     #  CURRENCY SIGN
+    0x00d0: 0x00f0,     #  LATIN SMALL LETTER ETH
+    0x00d1: 0x00d0,     #  LATIN CAPITAL LETTER ETH
+    0x00d2: 0x00ca,     #  LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+    0x00d3: 0x00cb,     #  LATIN CAPITAL LETTER E WITH DIAERESIS
+    0x00d4: 0x00c8,     #  LATIN CAPITAL LETTER E WITH GRAVE
+    0x00d5: 0x20ac,     #  EURO SIGN
+    0x00d6: 0x00cd,     #  LATIN CAPITAL LETTER I WITH ACUTE
+    0x00d7: 0x00ce,     #  LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+    0x00d8: 0x00cf,     #  LATIN CAPITAL LETTER I WITH DIAERESIS
+    0x00d9: 0x2518,     #  BOX DRAWINGS LIGHT UP AND LEFT
+    0x00da: 0x250c,     #  BOX DRAWINGS LIGHT DOWN AND RIGHT
+    0x00db: 0x2588,     #  FULL BLOCK
+    0x00dc: 0x2584,     #  LOWER HALF BLOCK
+    0x00dd: 0x00a6,     #  BROKEN BAR
+    0x00de: 0x00cc,     #  LATIN CAPITAL LETTER I WITH GRAVE
+    0x00df: 0x2580,     #  UPPER HALF BLOCK
+    0x00e0: 0x00d3,     #  LATIN CAPITAL LETTER O WITH ACUTE
+    0x00e1: 0x00df,     #  LATIN SMALL LETTER SHARP S
+    0x00e2: 0x00d4,     #  LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+    0x00e3: 0x00d2,     #  LATIN CAPITAL LETTER O WITH GRAVE
+    0x00e4: 0x00f5,     #  LATIN SMALL LETTER O WITH TILDE
+    0x00e5: 0x00d5,     #  LATIN CAPITAL LETTER O WITH TILDE
+    0x00e6: 0x00b5,     #  MICRO SIGN
+    0x00e7: 0x00fe,     #  LATIN SMALL LETTER THORN
+    0x00e8: 0x00de,     #  LATIN CAPITAL LETTER THORN
+    0x00e9: 0x00da,     #  LATIN CAPITAL LETTER U WITH ACUTE
+    0x00ea: 0x00db,     #  LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+    0x00eb: 0x00d9,     #  LATIN CAPITAL LETTER U WITH GRAVE
+    0x00ec: 0x00fd,     #  LATIN SMALL LETTER Y WITH ACUTE
+    0x00ed: 0x00dd,     #  LATIN CAPITAL LETTER Y WITH ACUTE
+    0x00ee: 0x00af,     #  MACRON
+    0x00ef: 0x00b4,     #  ACUTE ACCENT
+    0x00f0: 0x00ad,     #  SOFT HYPHEN
+    0x00f1: 0x00b1,     #  PLUS-MINUS SIGN
+    0x00f2: 0x2017,     #  DOUBLE LOW LINE
+    0x00f3: 0x00be,     #  VULGAR FRACTION THREE QUARTERS
+    0x00f4: 0x00b6,     #  PILCROW SIGN
+    0x00f5: 0x00a7,     #  SECTION SIGN
+    0x00f6: 0x00f7,     #  DIVISION SIGN
+    0x00f7: 0x00b8,     #  CEDILLA
+    0x00f8: 0x00b0,     #  DEGREE SIGN
+    0x00f9: 0x00a8,     #  DIAERESIS
+    0x00fa: 0x00b7,     #  MIDDLE DOT
+    0x00fb: 0x00b9,     #  SUPERSCRIPT ONE
+    0x00fc: 0x00b3,     #  SUPERSCRIPT THREE
+    0x00fd: 0x00b2,     #  SUPERSCRIPT TWO
+    0x00fe: 0x25a0,     #  BLACK SQUARE
+    0x00ff: 0x00a0,     #  NO-BREAK SPACE
+})
+
+### Decoding Table
+
+decoding_table = (
+    u'\x00'     #  0x0000 -> NULL
+    u'\x01'     #  0x0001 -> START OF HEADING
+    u'\x02'     #  0x0002 -> START OF TEXT
+    u'\x03'     #  0x0003 -> END OF TEXT
+    u'\x04'     #  0x0004 -> END OF TRANSMISSION
+    u'\x05'     #  0x0005 -> ENQUIRY
+    u'\x06'     #  0x0006 -> ACKNOWLEDGE
+    u'\x07'     #  0x0007 -> BELL
+    u'\x08'     #  0x0008 -> BACKSPACE
+    u'\t'       #  0x0009 -> HORIZONTAL TABULATION
+    u'\n'       #  0x000a -> LINE FEED
+    u'\x0b'     #  0x000b -> VERTICAL TABULATION
+    u'\x0c'     #  0x000c -> FORM FEED
+    u'\r'       #  0x000d -> CARRIAGE RETURN
+    u'\x0e'     #  0x000e -> SHIFT OUT
+    u'\x0f'     #  0x000f -> SHIFT IN
+    u'\x10'     #  0x0010 -> DATA LINK ESCAPE
+    u'\x11'     #  0x0011 -> DEVICE CONTROL ONE
+    u'\x12'     #  0x0012 -> DEVICE CONTROL TWO
+    u'\x13'     #  0x0013 -> DEVICE CONTROL THREE
+    u'\x14'     #  0x0014 -> DEVICE CONTROL FOUR
+    u'\x15'     #  0x0015 -> NEGATIVE ACKNOWLEDGE
+    u'\x16'     #  0x0016 -> SYNCHRONOUS IDLE
+    u'\x17'     #  0x0017 -> END OF TRANSMISSION BLOCK
+    u'\x18'     #  0x0018 -> CANCEL
+    u'\x19'     #  0x0019 -> END OF MEDIUM
+    u'\x1a'     #  0x001a -> SUBSTITUTE
+    u'\x1b'     #  0x001b -> ESCAPE
+    u'\x1c'     #  0x001c -> FILE SEPARATOR
+    u'\x1d'     #  0x001d -> GROUP SEPARATOR
+    u'\x1e'     #  0x001e -> RECORD SEPARATOR
+    u'\x1f'     #  0x001f -> UNIT SEPARATOR
+    u' '        #  0x0020 -> SPACE
+    u'!'        #  0x0021 -> EXCLAMATION MARK
+    u'"'        #  0x0022 -> QUOTATION MARK
+    u'#'        #  0x0023 -> NUMBER SIGN
+    u'$'        #  0x0024 -> DOLLAR SIGN
+    u'%'        #  0x0025 -> PERCENT SIGN
+    u'&'        #  0x0026 -> AMPERSAND
+    u"'"        #  0x0027 -> APOSTROPHE
+    u'('        #  0x0028 -> LEFT PARENTHESIS
+    u')'        #  0x0029 -> RIGHT PARENTHESIS
+    u'*'        #  0x002a -> ASTERISK
+    u'+'        #  0x002b -> PLUS SIGN
+    u','        #  0x002c -> COMMA
+    u'-'        #  0x002d -> HYPHEN-MINUS
+    u'.'        #  0x002e -> FULL STOP
+    u'/'        #  0x002f -> SOLIDUS
+    u'0'        #  0x0030 -> DIGIT ZERO
+    u'1'        #  0x0031 -> DIGIT ONE
+    u'2'        #  0x0032 -> DIGIT TWO
+    u'3'        #  0x0033 -> DIGIT THREE
+    u'4'        #  0x0034 -> DIGIT FOUR
+    u'5'        #  0x0035 -> DIGIT FIVE
+    u'6'        #  0x0036 -> DIGIT SIX
+    u'7'        #  0x0037 -> DIGIT SEVEN
+    u'8'        #  0x0038 -> DIGIT EIGHT
+    u'9'        #  0x0039 -> DIGIT NINE
+    u':'        #  0x003a -> COLON
+    u';'        #  0x003b -> SEMICOLON
+    u'<'        #  0x003c -> LESS-THAN SIGN
+    u'='        #  0x003d -> EQUALS SIGN
+    u'>'        #  0x003e -> GREATER-THAN SIGN
+    u'?'        #  0x003f -> QUESTION MARK
+    u'@'        #  0x0040 -> COMMERCIAL AT
+    u'A'        #  0x0041 -> LATIN CAPITAL LETTER A
+    u'B'        #  0x0042 -> LATIN CAPITAL LETTER B
+    u'C'        #  0x0043 -> LATIN CAPITAL LETTER C
+    u'D'        #  0x0044 -> LATIN CAPITAL LETTER D
+    u'E'        #  0x0045 -> LATIN CAPITAL LETTER E
+    u'F'        #  0x0046 -> LATIN CAPITAL LETTER F
+    u'G'        #  0x0047 -> LATIN CAPITAL LETTER G
+    u'H'        #  0x0048 -> LATIN CAPITAL LETTER H
+    u'I'        #  0x0049 -> LATIN CAPITAL LETTER I
+    u'J'        #  0x004a -> LATIN CAPITAL LETTER J
+    u'K'        #  0x004b -> LATIN CAPITAL LETTER K
+    u'L'        #  0x004c -> LATIN CAPITAL LETTER L
+    u'M'        #  0x004d -> LATIN CAPITAL LETTER M
+    u'N'        #  0x004e -> LATIN CAPITAL LETTER N
+    u'O'        #  0x004f -> LATIN CAPITAL LETTER O
+    u'P'        #  0x0050 -> LATIN CAPITAL LETTER P
+    u'Q'        #  0x0051 -> LATIN CAPITAL LETTER Q
+    u'R'        #  0x0052 -> LATIN CAPITAL LETTER R
+    u'S'        #  0x0053 -> LATIN CAPITAL LETTER S
+    u'T'        #  0x0054 -> LATIN CAPITAL LETTER T
+    u'U'        #  0x0055 -> LATIN CAPITAL LETTER U
+    u'V'        #  0x0056 -> LATIN CAPITAL LETTER V
+    u'W'        #  0x0057 -> LATIN CAPITAL LETTER W
+    u'X'        #  0x0058 -> LATIN CAPITAL LETTER X
+    u'Y'        #  0x0059 -> LATIN CAPITAL LETTER Y
+    u'Z'        #  0x005a -> LATIN CAPITAL LETTER Z
+    u'['        #  0x005b -> LEFT SQUARE BRACKET
+    u'\\'       #  0x005c -> REVERSE SOLIDUS
+    u']'        #  0x005d -> RIGHT SQUARE BRACKET
+    u'^'        #  0x005e -> CIRCUMFLEX ACCENT
+    u'_'        #  0x005f -> LOW LINE
+    u'`'        #  0x0060 -> GRAVE ACCENT
+    u'a'        #  0x0061 -> LATIN SMALL LETTER A
+    u'b'        #  0x0062 -> LATIN SMALL LETTER B
+    u'c'        #  0x0063 -> LATIN SMALL LETTER C
+    u'd'        #  0x0064 -> LATIN SMALL LETTER D
+    u'e'        #  0x0065 -> LATIN SMALL LETTER E
+    u'f'        #  0x0066 -> LATIN SMALL LETTER F
+    u'g'        #  0x0067 -> LATIN SMALL LETTER G
+    u'h'        #  0x0068 -> LATIN SMALL LETTER H
+    u'i'        #  0x0069 -> LATIN SMALL LETTER I
+    u'j'        #  0x006a -> LATIN SMALL LETTER J
+    u'k'        #  0x006b -> LATIN SMALL LETTER K
+    u'l'        #  0x006c -> LATIN SMALL LETTER L
+    u'm'        #  0x006d -> LATIN SMALL LETTER M
+    u'n'        #  0x006e -> LATIN SMALL LETTER N
+    u'o'        #  0x006f -> LATIN SMALL LETTER O
+    u'p'        #  0x0070 -> LATIN SMALL LETTER P
+    u'q'        #  0x0071 -> LATIN SMALL LETTER Q
+    u'r'        #  0x0072 -> LATIN SMALL LETTER R
+    u's'        #  0x0073 -> LATIN SMALL LETTER S
+    u't'        #  0x0074 -> LATIN SMALL LETTER T
+    u'u'        #  0x0075 -> LATIN SMALL LETTER U
+    u'v'        #  0x0076 -> LATIN SMALL LETTER V
+    u'w'        #  0x0077 -> LATIN SMALL LETTER W
+    u'x'        #  0x0078 -> LATIN SMALL LETTER X
+    u'y'        #  0x0079 -> LATIN SMALL LETTER Y
+    u'z'        #  0x007a -> LATIN SMALL LETTER Z
+    u'{'        #  0x007b -> LEFT CURLY BRACKET
+    u'|'        #  0x007c -> VERTICAL LINE
+    u'}'        #  0x007d -> RIGHT CURLY BRACKET
+    u'~'        #  0x007e -> TILDE
+    u'\x7f'     #  0x007f -> DELETE
+    u'\xc7'     #  0x0080 -> LATIN CAPITAL LETTER C WITH CEDILLA
+    u'\xfc'     #  0x0081 -> LATIN SMALL LETTER U WITH DIAERESIS
+    u'\xe9'     #  0x0082 -> LATIN SMALL LETTER E WITH ACUTE
+    u'\xe2'     #  0x0083 -> LATIN SMALL LETTER A WITH CIRCUMFLEX
+    u'\xe4'     #  0x0084 -> LATIN SMALL LETTER A WITH DIAERESIS
+    u'\xe0'     #  0x0085 -> LATIN SMALL LETTER A WITH GRAVE
+    u'\xe5'     #  0x0086 -> LATIN SMALL LETTER A WITH RING ABOVE
+    u'\xe7'     #  0x0087 -> LATIN SMALL LETTER C WITH CEDILLA
+    u'\xea'     #  0x0088 -> LATIN SMALL LETTER E WITH CIRCUMFLEX
+    u'\xeb'     #  0x0089 -> LATIN SMALL LETTER E WITH DIAERESIS
+    u'\xe8'     #  0x008a -> LATIN SMALL LETTER E WITH GRAVE
+    u'\xef'     #  0x008b -> LATIN SMALL LETTER I WITH DIAERESIS
+    u'\xee'     #  0x008c -> LATIN SMALL LETTER I WITH CIRCUMFLEX
+    u'\xec'     #  0x008d -> LATIN SMALL LETTER I WITH GRAVE
+    u'\xc4'     #  0x008e -> LATIN CAPITAL LETTER A WITH DIAERESIS
+    u'\xc5'     #  0x008f -> LATIN CAPITAL LETTER A WITH RING ABOVE
+    u'\xc9'     #  0x0090 -> LATIN CAPITAL LETTER E WITH ACUTE
+    u'\xe6'     #  0x0091 -> LATIN SMALL LIGATURE AE
+    u'\xc6'     #  0x0092 -> LATIN CAPITAL LIGATURE AE
+    u'\xf4'     #  0x0093 -> LATIN SMALL LETTER O WITH CIRCUMFLEX
+    u'\xf6'     #  0x0094 -> LATIN SMALL LETTER O WITH DIAERESIS
+    u'\xf2'     #  0x0095 -> LATIN SMALL LETTER O WITH GRAVE
+    u'\xfb'     #  0x0096 -> LATIN SMALL LETTER U WITH CIRCUMFLEX
+    u'\xf9'     #  0x0097 -> LATIN SMALL LETTER U WITH GRAVE
+    u'\xff'     #  0x0098 -> LATIN SMALL LETTER Y WITH DIAERESIS
+    u'\xd6'     #  0x0099 -> LATIN CAPITAL LETTER O WITH DIAERESIS
+    u'\xdc'     #  0x009a -> LATIN CAPITAL LETTER U WITH DIAERESIS
+    u'\xf8'     #  0x009b -> LATIN SMALL LETTER O WITH STROKE
+    u'\xa3'     #  0x009c -> POUND SIGN
+    u'\xd8'     #  0x009d -> LATIN CAPITAL LETTER O WITH STROKE
+    u'\xd7'     #  0x009e -> MULTIPLICATION SIGN
+    u'\u0192'   #  0x009f -> LATIN SMALL LETTER F WITH HOOK
+    u'\xe1'     #  0x00a0 -> LATIN SMALL LETTER A WITH ACUTE
+    u'\xed'     #  0x00a1 -> LATIN SMALL LETTER I WITH ACUTE
+    u'\xf3'     #  0x00a2 -> LATIN SMALL LETTER O WITH ACUTE
+    u'\xfa'     #  0x00a3 -> LATIN SMALL LETTER U WITH ACUTE
+    u'\xf1'     #  0x00a4 -> LATIN SMALL LETTER N WITH TILDE
+    u'\xd1'     #  0x00a5 -> LATIN CAPITAL LETTER N WITH TILDE
+    u'\xaa'     #  0x00a6 -> FEMININE ORDINAL INDICATOR
+    u'\xba'     #  0x00a7 -> MASCULINE ORDINAL INDICATOR
+    u'\xbf'     #  0x00a8 -> INVERTED QUESTION MARK
+    u'\xae'     #  0x00a9 -> REGISTERED SIGN
+    u'\xac'     #  0x00aa -> NOT SIGN
+    u'\xbd'     #  0x00ab -> VULGAR FRACTION ONE HALF
+    u'\xbc'     #  0x00ac -> VULGAR FRACTION ONE QUARTER
+    u'\xa1'     #  0x00ad -> INVERTED EXCLAMATION MARK
+    u'\xab'     #  0x00ae -> LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+    u'\xbb'     #  0x00af -> RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+    u'\u2591'   #  0x00b0 -> LIGHT SHADE
+    u'\u2592'   #  0x00b1 -> MEDIUM SHADE
+    u'\u2593'   #  0x00b2 -> DARK SHADE
+    u'\u2502'   #  0x00b3 -> BOX DRAWINGS LIGHT VERTICAL
+    u'\u2524'   #  0x00b4 -> BOX DRAWINGS LIGHT VERTICAL AND LEFT
+    u'\xc1'     #  0x00b5 -> LATIN CAPITAL LETTER A WITH ACUTE
+    u'\xc2'     #  0x00b6 -> LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+    u'\xc0'     #  0x00b7 -> LATIN CAPITAL LETTER A WITH GRAVE
+    u'\xa9'     #  0x00b8 -> COPYRIGHT SIGN
+    u'\u2563'   #  0x00b9 -> BOX DRAWINGS DOUBLE VERTICAL AND LEFT
+    u'\u2551'   #  0x00ba -> BOX DRAWINGS DOUBLE VERTICAL
+    u'\u2557'   #  0x00bb -> BOX DRAWINGS DOUBLE DOWN AND LEFT
+    u'\u255d'   #  0x00bc -> BOX DRAWINGS DOUBLE UP AND LEFT
+    u'\xa2'     #  0x00bd -> CENT SIGN
+    u'\xa5'     #  0x00be -> YEN SIGN
+    u'\u2510'   #  0x00bf -> BOX DRAWINGS LIGHT DOWN AND LEFT
+    u'\u2514'   #  0x00c0 -> BOX DRAWINGS LIGHT UP AND RIGHT
+    u'\u2534'   #  0x00c1 -> BOX DRAWINGS LIGHT UP AND HORIZONTAL
+    u'\u252c'   #  0x00c2 -> BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
+    u'\u251c'   #  0x00c3 -> BOX DRAWINGS LIGHT VERTICAL AND RIGHT
+    u'\u2500'   #  0x00c4 -> BOX DRAWINGS LIGHT HORIZONTAL
+    u'\u253c'   #  0x00c5 -> BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
+    u'\xe3'     #  0x00c6 -> LATIN SMALL LETTER A WITH TILDE
+    u'\xc3'     #  0x00c7 -> LATIN CAPITAL LETTER A WITH TILDE
+    u'\u255a'   #  0x00c8 -> BOX DRAWINGS DOUBLE UP AND RIGHT
+    u'\u2554'   #  0x00c9 -> BOX DRAWINGS DOUBLE DOWN AND RIGHT
+    u'\u2569'   #  0x00ca -> BOX DRAWINGS DOUBLE UP AND HORIZONTAL
+    u'\u2566'   #  0x00cb -> BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
+    u'\u2560'   #  0x00cc -> BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
+    u'\u2550'   #  0x00cd -> BOX DRAWINGS DOUBLE HORIZONTAL
+    u'\u256c'   #  0x00ce -> BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
+    u'\xa4'     #  0x00cf -> CURRENCY SIGN
+    u'\xf0'     #  0x00d0 -> LATIN SMALL LETTER ETH
+    u'\xd0'     #  0x00d1 -> LATIN CAPITAL LETTER ETH
+    u'\xca'     #  0x00d2 -> LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+    u'\xcb'     #  0x00d3 -> LATIN CAPITAL LETTER E WITH DIAERESIS
+    u'\xc8'     #  0x00d4 -> LATIN CAPITAL LETTER E WITH GRAVE
+    u'\u20ac'   #  0x00d5 -> EURO SIGN
+    u'\xcd'     #  0x00d6 -> LATIN CAPITAL LETTER I WITH ACUTE
+    u'\xce'     #  0x00d7 -> LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+    u'\xcf'     #  0x00d8 -> LATIN CAPITAL LETTER I WITH DIAERESIS
+    u'\u2518'   #  0x00d9 -> BOX DRAWINGS LIGHT UP AND LEFT
+    u'\u250c'   #  0x00da -> BOX DRAWINGS LIGHT DOWN AND RIGHT
+    u'\u2588'   #  0x00db -> FULL BLOCK
+    u'\u2584'   #  0x00dc -> LOWER HALF BLOCK
+    u'\xa6'     #  0x00dd -> BROKEN BAR
+    u'\xcc'     #  0x00de -> LATIN CAPITAL LETTER I WITH GRAVE
+    u'\u2580'   #  0x00df -> UPPER HALF BLOCK
+    u'\xd3'     #  0x00e0 -> LATIN CAPITAL LETTER O WITH ACUTE
+    u'\xdf'     #  0x00e1 -> LATIN SMALL LETTER SHARP S
+    u'\xd4'     #  0x00e2 -> LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+    u'\xd2'     #  0x00e3 -> LATIN CAPITAL LETTER O WITH GRAVE
+    u'\xf5'     #  0x00e4 -> LATIN SMALL LETTER O WITH TILDE
+    u'\xd5'     #  0x00e5 -> LATIN CAPITAL LETTER O WITH TILDE
+    u'\xb5'     #  0x00e6 -> MICRO SIGN
+    u'\xfe'     #  0x00e7 -> LATIN SMALL LETTER THORN
+    u'\xde'     #  0x00e8 -> LATIN CAPITAL LETTER THORN
+    u'\xda'     #  0x00e9 -> LATIN CAPITAL LETTER U WITH ACUTE
+    u'\xdb'     #  0x00ea -> LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+    u'\xd9'     #  0x00eb -> LATIN CAPITAL LETTER U WITH GRAVE
+    u'\xfd'     #  0x00ec -> LATIN SMALL LETTER Y WITH ACUTE
+    u'\xdd'     #  0x00ed -> LATIN CAPITAL LETTER Y WITH ACUTE
+    u'\xaf'     #  0x00ee -> MACRON
+    u'\xb4'     #  0x00ef -> ACUTE ACCENT
+    u'\xad'     #  0x00f0 -> SOFT HYPHEN
+    u'\xb1'     #  0x00f1 -> PLUS-MINUS SIGN
+    u'\u2017'   #  0x00f2 -> DOUBLE LOW LINE
+    u'\xbe'     #  0x00f3 -> VULGAR FRACTION THREE QUARTERS
+    u'\xb6'     #  0x00f4 -> PILCROW SIGN
+    u'\xa7'     #  0x00f5 -> SECTION SIGN
+    u'\xf7'     #  0x00f6 -> DIVISION SIGN
+    u'\xb8'     #  0x00f7 -> CEDILLA
+    u'\xb0'     #  0x00f8 -> DEGREE SIGN
+    u'\xa8'     #  0x00f9 -> DIAERESIS
+    u'\xb7'     #  0x00fa -> MIDDLE DOT
+    u'\xb9'     #  0x00fb -> SUPERSCRIPT ONE
+    u'\xb3'     #  0x00fc -> SUPERSCRIPT THREE
+    u'\xb2'     #  0x00fd -> SUPERSCRIPT TWO
+    u'\u25a0'   #  0x00fe -> BLACK SQUARE
+    u'\xa0'     #  0x00ff -> NO-BREAK SPACE
+)
+
+### Encoding Map
+
+encoding_map = {
+    0x0000: 0x0000,     #  NULL
+    0x0001: 0x0001,     #  START OF HEADING
+    0x0002: 0x0002,     #  START OF TEXT
+    0x0003: 0x0003,     #  END OF TEXT
+    0x0004: 0x0004,     #  END OF TRANSMISSION
+    0x0005: 0x0005,     #  ENQUIRY
+    0x0006: 0x0006,     #  ACKNOWLEDGE
+    0x0007: 0x0007,     #  BELL
+    0x0008: 0x0008,     #  BACKSPACE
+    0x0009: 0x0009,     #  HORIZONTAL TABULATION
+    0x000a: 0x000a,     #  LINE FEED
+    0x000b: 0x000b,     #  VERTICAL TABULATION
+    0x000c: 0x000c,     #  FORM FEED
+    0x000d: 0x000d,     #  CARRIAGE RETURN
+    0x000e: 0x000e,     #  SHIFT OUT
+    0x000f: 0x000f,     #  SHIFT IN
+    0x0010: 0x0010,     #  DATA LINK ESCAPE
+    0x0011: 0x0011,     #  DEVICE CONTROL ONE
+    0x0012: 0x0012,     #  DEVICE CONTROL TWO
+    0x0013: 0x0013,     #  DEVICE CONTROL THREE
+    0x0014: 0x0014,     #  DEVICE CONTROL FOUR
+    0x0015: 0x0015,     #  NEGATIVE ACKNOWLEDGE
+    0x0016: 0x0016,     #  SYNCHRONOUS IDLE
+    0x0017: 0x0017,     #  END OF TRANSMISSION BLOCK
+    0x0018: 0x0018,     #  CANCEL
+    0x0019: 0x0019,     #  END OF MEDIUM
+    0x001a: 0x001a,     #  SUBSTITUTE
+    0x001b: 0x001b,     #  ESCAPE
+    0x001c: 0x001c,     #  FILE SEPARATOR
+    0x001d: 0x001d,     #  GROUP SEPARATOR
+    0x001e: 0x001e,     #  RECORD SEPARATOR
+    0x001f: 0x001f,     #  UNIT SEPARATOR
+    0x0020: 0x0020,     #  SPACE
+    0x0021: 0x0021,     #  EXCLAMATION MARK
+    0x0022: 0x0022,     #  QUOTATION MARK
+    0x0023: 0x0023,     #  NUMBER SIGN
+    0x0024: 0x0024,     #  DOLLAR SIGN
+    0x0025: 0x0025,     #  PERCENT SIGN
+    0x0026: 0x0026,     #  AMPERSAND
+    0x0027: 0x0027,     #  APOSTROPHE
+    0x0028: 0x0028,     #  LEFT PARENTHESIS
+    0x0029: 0x0029,     #  RIGHT PARENTHESIS
+    0x002a: 0x002a,     #  ASTERISK
+    0x002b: 0x002b,     #  PLUS SIGN
+    0x002c: 0x002c,     #  COMMA
+    0x002d: 0x002d,     #  HYPHEN-MINUS
+    0x002e: 0x002e,     #  FULL STOP
+    0x002f: 0x002f,     #  SOLIDUS
+    0x0030: 0x0030,     #  DIGIT ZERO
+    0x0031: 0x0031,     #  DIGIT ONE
+    0x0032: 0x0032,     #  DIGIT TWO
+    0x0033: 0x0033,     #  DIGIT THREE
+    0x0034: 0x0034,     #  DIGIT FOUR
+    0x0035: 0x0035,     #  DIGIT FIVE
+    0x0036: 0x0036,     #  DIGIT SIX
+    0x0037: 0x0037,     #  DIGIT SEVEN
+    0x0038: 0x0038,     #  DIGIT EIGHT
+    0x0039: 0x0039,     #  DIGIT NINE
+    0x003a: 0x003a,     #  COLON
+    0x003b: 0x003b,     #  SEMICOLON
+    0x003c: 0x003c,     #  LESS-THAN SIGN
+    0x003d: 0x003d,     #  EQUALS SIGN
+    0x003e: 0x003e,     #  GREATER-THAN SIGN
+    0x003f: 0x003f,     #  QUESTION MARK
+    0x0040: 0x0040,     #  COMMERCIAL AT
+    0x0041: 0x0041,     #  LATIN CAPITAL LETTER A
+    0x0042: 0x0042,     #  LATIN CAPITAL LETTER B
+    0x0043: 0x0043,     #  LATIN CAPITAL LETTER C
+    0x0044: 0x0044,     #  LATIN CAPITAL LETTER D
+    0x0045: 0x0045,     #  LATIN CAPITAL LETTER E
+    0x0046: 0x0046,     #  LATIN CAPITAL LETTER F
+    0x0047: 0x0047,     #  LATIN CAPITAL LETTER G
+    0x0048: 0x0048,     #  LATIN CAPITAL LETTER H
+    0x0049: 0x0049,     #  LATIN CAPITAL LETTER I
+    0x004a: 0x004a,     #  LATIN CAPITAL LETTER J
+    0x004b: 0x004b,     #  LATIN CAPITAL LETTER K
+    0x004c: 0x004c,     #  LATIN CAPITAL LETTER L
+    0x004d: 0x004d,     #  LATIN CAPITAL LETTER M
+    0x004e: 0x004e,     #  LATIN CAPITAL LETTER N
+    0x004f: 0x004f,     #  LATIN CAPITAL LETTER O
+    0x0050: 0x0050,     #  LATIN CAPITAL LETTER P
+    0x0051: 0x0051,     #  LATIN CAPITAL LETTER Q
+    0x0052: 0x0052,     #  LATIN CAPITAL LETTER R
+    0x0053: 0x0053,     #  LATIN CAPITAL LETTER S
+    0x0054: 0x0054,     #  LATIN CAPITAL LETTER T
+    0x0055: 0x0055,     #  LATIN CAPITAL LETTER U
+    0x0056: 0x0056,     #  LATIN CAPITAL LETTER V
+    0x0057: 0x0057,     #  LATIN CAPITAL LETTER W
+    0x0058: 0x0058,     #  LATIN CAPITAL LETTER X
+    0x0059: 0x0059,     #  LATIN CAPITAL LETTER Y
+    0x005a: 0x005a,     #  LATIN CAPITAL LETTER Z
+    0x005b: 0x005b,     #  LEFT SQUARE BRACKET
+    0x005c: 0x005c,     #  REVERSE SOLIDUS
+    0x005d: 0x005d,     #  RIGHT SQUARE BRACKET
+    0x005e: 0x005e,     #  CIRCUMFLEX ACCENT
+    0x005f: 0x005f,     #  LOW LINE
+    0x0060: 0x0060,     #  GRAVE ACCENT
+    0x0061: 0x0061,     #  LATIN SMALL LETTER A
+    0x0062: 0x0062,     #  LATIN SMALL LETTER B
+    0x0063: 0x0063,     #  LATIN SMALL LETTER C
+    0x0064: 0x0064,     #  LATIN SMALL LETTER D
+    0x0065: 0x0065,     #  LATIN SMALL LETTER E
+    0x0066: 0x0066,     #  LATIN SMALL LETTER F
+    0x0067: 0x0067,     #  LATIN SMALL LETTER G
+    0x0068: 0x0068,     #  LATIN SMALL LETTER H
+    0x0069: 0x0069,     #  LATIN SMALL LETTER I
+    0x006a: 0x006a,     #  LATIN SMALL LETTER J
+    0x006b: 0x006b,     #  LATIN SMALL LETTER K
+    0x006c: 0x006c,     #  LATIN SMALL LETTER L
+    0x006d: 0x006d,     #  LATIN SMALL LETTER M
+    0x006e: 0x006e,     #  LATIN SMALL LETTER N
+    0x006f: 0x006f,     #  LATIN SMALL LETTER O
+    0x0070: 0x0070,     #  LATIN SMALL LETTER P
+    0x0071: 0x0071,     #  LATIN SMALL LETTER Q
+    0x0072: 0x0072,     #  LATIN SMALL LETTER R
+    0x0073: 0x0073,     #  LATIN SMALL LETTER S
+    0x0074: 0x0074,     #  LATIN SMALL LETTER T
+    0x0075: 0x0075,     #  LATIN SMALL LETTER U
+    0x0076: 0x0076,     #  LATIN SMALL LETTER V
+    0x0077: 0x0077,     #  LATIN SMALL LETTER W
+    0x0078: 0x0078,     #  LATIN SMALL LETTER X
+    0x0079: 0x0079,     #  LATIN SMALL LETTER Y
+    0x007a: 0x007a,     #  LATIN SMALL LETTER Z
+    0x007b: 0x007b,     #  LEFT CURLY BRACKET
+    0x007c: 0x007c,     #  VERTICAL LINE
+    0x007d: 0x007d,     #  RIGHT CURLY BRACKET
+    0x007e: 0x007e,     #  TILDE
+    0x007f: 0x007f,     #  DELETE
+    0x00a0: 0x00ff,     #  NO-BREAK SPACE
+    0x00a1: 0x00ad,     #  INVERTED EXCLAMATION MARK
+    0x00a2: 0x00bd,     #  CENT SIGN
+    0x00a3: 0x009c,     #  POUND SIGN
+    0x00a4: 0x00cf,     #  CURRENCY SIGN
+    0x00a5: 0x00be,     #  YEN SIGN
+    0x00a6: 0x00dd,     #  BROKEN BAR
+    0x00a7: 0x00f5,     #  SECTION SIGN
+    0x00a8: 0x00f9,     #  DIAERESIS
+    0x00a9: 0x00b8,     #  COPYRIGHT SIGN
+    0x00aa: 0x00a6,     #  FEMININE ORDINAL INDICATOR
+    0x00ab: 0x00ae,     #  LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
+    0x00ac: 0x00aa,     #  NOT SIGN
+    0x00ad: 0x00f0,     #  SOFT HYPHEN
+    0x00ae: 0x00a9,     #  REGISTERED SIGN
+    0x00af: 0x00ee,     #  MACRON
+    0x00b0: 0x00f8,     #  DEGREE SIGN
+    0x00b1: 0x00f1,     #  PLUS-MINUS SIGN
+    0x00b2: 0x00fd,     #  SUPERSCRIPT TWO
+    0x00b3: 0x00fc,     #  SUPERSCRIPT THREE
+    0x00b4: 0x00ef,     #  ACUTE ACCENT
+    0x00b5: 0x00e6,     #  MICRO SIGN
+    0x00b6: 0x00f4,     #  PILCROW SIGN
+    0x00b7: 0x00fa,     #  MIDDLE DOT
+    0x00b8: 0x00f7,     #  CEDILLA
+    0x00b9: 0x00fb,     #  SUPERSCRIPT ONE
+    0x00ba: 0x00a7,     #  MASCULINE ORDINAL INDICATOR
+    0x00bb: 0x00af,     #  RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
+    0x00bc: 0x00ac,     #  VULGAR FRACTION ONE QUARTER
+    0x00bd: 0x00ab,     #  VULGAR FRACTION ONE HALF
+    0x00be: 0x00f3,     #  VULGAR FRACTION THREE QUARTERS
+    0x00bf: 0x00a8,     #  INVERTED QUESTION MARK
+    0x00c0: 0x00b7,     #  LATIN CAPITAL LETTER A WITH GRAVE
+    0x00c1: 0x00b5,     #  LATIN CAPITAL LETTER A WITH ACUTE
+    0x00c2: 0x00b6,     #  LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+    0x00c3: 0x00c7,     #  LATIN CAPITAL LETTER A WITH TILDE
+    0x00c4: 0x008e,     #  LATIN CAPITAL LETTER A WITH DIAERESIS
+    0x00c5: 0x008f,     #  LATIN CAPITAL LETTER A WITH RING ABOVE
+    0x00c6: 0x0092,     #  LATIN CAPITAL LIGATURE AE
+    0x00c7: 0x0080,     #  LATIN CAPITAL LETTER C WITH CEDILLA
+    0x00c8: 0x00d4,     #  LATIN CAPITAL LETTER E WITH GRAVE
+    0x00c9: 0x0090,     #  LATIN CAPITAL LETTER E WITH ACUTE
+    0x00ca: 0x00d2,     #  LATIN CAPITAL LETTER E WITH CIRCUMFLEX
+    0x00cb: 0x00d3,     #  LATIN CAPITAL LETTER E WITH DIAERESIS
+    0x00cc: 0x00de,     #  LATIN CAPITAL LETTER I WITH GRAVE
+    0x00cd: 0x00d6,     #  LATIN CAPITAL LETTER I WITH ACUTE
+    0x00ce: 0x00d7,     #  LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+    0x00cf: 0x00d8,     #  LATIN CAPITAL LETTER I WITH DIAERESIS
+    0x00d0: 0x00d1,     #  LATIN CAPITAL LETTER ETH
+    0x00d1: 0x00a5,     #  LATIN CAPITAL LETTER N WITH TILDE
+    0x00d2: 0x00e3,     #  LATIN CAPITAL LETTER O WITH GRAVE
+    0x00d3: 0x00e0,     #  LATIN CAPITAL LETTER O WITH ACUTE
+    0x00d4: 0x00e2,     #  LATIN CAPITAL LETTER O WITH CIRCUMFLEX
+    0x00d5: 0x00e5,     #  LATIN CAPITAL LETTER O WITH TILDE
+    0x00d6: 0x0099,     #  LATIN CAPITAL LETTER O WITH DIAERESIS
+    0x00d7: 0x009e,     #  MULTIPLICATION SIGN
+    0x00d8: 0x009d,     #  LATIN CAPITAL LETTER O WITH STROKE
+    0x00d9: 0x00eb,     #  LATIN CAPITAL LETTER U WITH GRAVE
+    0x00da: 0x00e9,     #  LATIN CAPITAL LETTER U WITH ACUTE
+    0x00db: 0x00ea,     #  LATIN CAPITAL LETTER U WITH CIRCUMFLEX
+    0x00dc: 0x009a,     #  LATIN CAPITAL LETTER U WITH DIAERESIS
+    0x00dd: 0x00ed,     #  LATIN CAPITAL LETTER Y WITH ACUTE
+    0x00de: 0x00e8,     #  LATIN CAPITAL LETTER THORN
+    0x00df: 0x00e1,     #  LATIN SMALL LETTER SHARP S
+    0x00e0: 0x0085,     #  LATIN SMALL LETTER A WITH GRAVE
+    0x00e1: 0x00a0,     #  LATIN SMALL LETTER A WITH ACUTE
+    0x00e2: 0x0083,     #  LATIN SMALL LETTER A WITH CIRCUMFLEX
+    0x00e3: 0x00c6,     #  LATIN SMALL LETTER A WITH TILDE
+    0x00e4: 0x0084,     #  LATIN SMALL LETTER A WITH DIAERESIS
+    0x00e5: 0x0086,     #  LATIN SMALL LETTER A WITH RING ABOVE
+    0x00e6: 0x0091,     #  LATIN SMALL LIGATURE AE
+    0x00e7: 0x0087,     #  LATIN SMALL LETTER C WITH CEDILLA
+    0x00e8: 0x008a,     #  LATIN SMALL LETTER E WITH GRAVE
+    0x00e9: 0x0082,     #  LATIN SMALL LETTER E WITH ACUTE
+    0x00ea: 0x0088,     #  LATIN SMALL LETTER E WITH CIRCUMFLEX
+    0x00eb: 0x0089,     #  LATIN SMALL LETTER E WITH DIAERESIS
+    0x00ec: 0x008d,     #  LATIN SMALL LETTER I WITH GRAVE
+    0x00ed: 0x00a1,     #  LATIN SMALL LETTER I WITH ACUTE
+    0x00ee: 0x008c,     #  LATIN SMALL LETTER I WITH CIRCUMFLEX
+    0x00ef: 0x008b,     #  LATIN SMALL LETTER I WITH DIAERESIS
+    0x00f0: 0x00d0,     #  LATIN SMALL LETTER ETH
+    0x00f1: 0x00a4,     #  LATIN SMALL LETTER N WITH TILDE
+    0x00f2: 0x0095,     #  LATIN SMALL LETTER O WITH GRAVE
+    0x00f3: 0x00a2,     #  LATIN SMALL LETTER O WITH ACUTE
+    0x00f4: 0x0093,     #  LATIN SMALL LETTER O WITH CIRCUMFLEX
+    0x00f5: 0x00e4,     #  LATIN SMALL LETTER O WITH TILDE
+    0x00f6: 0x0094,     #  LATIN SMALL LETTER O WITH DIAERESIS
+    0x00f7: 0x00f6,     #  DIVISION SIGN
+    0x00f8: 0x009b,     #  LATIN SMALL LETTER O WITH STROKE
+    0x00f9: 0x0097,     #  LATIN SMALL LETTER U WITH GRAVE
+    0x00fa: 0x00a3,     #  LATIN SMALL LETTER U WITH ACUTE
+    0x00fb: 0x0096,     #  LATIN SMALL LETTER U WITH CIRCUMFLEX
+    0x00fc: 0x0081,     #  LATIN SMALL LETTER U WITH DIAERESIS
+    0x00fd: 0x00ec,     #  LATIN SMALL LETTER Y WITH ACUTE
+    0x00fe: 0x00e7,     #  LATIN SMALL LETTER THORN
+    0x00ff: 0x0098,     #  LATIN SMALL LETTER Y WITH DIAERESIS
+    0x20ac: 0x00d5,     #  EURO SIGN
+    0x0192: 0x009f,     #  LATIN SMALL LETTER F WITH HOOK
+    0x2017: 0x00f2,     #  DOUBLE LOW LINE
+    0x2500: 0x00c4,     #  BOX DRAWINGS LIGHT HORIZONTAL
+    0x2502: 0x00b3,     #  BOX DRAWINGS LIGHT VERTICAL
+    0x250c: 0x00da,     #  BOX DRAWINGS LIGHT DOWN AND RIGHT
+    0x2510: 0x00bf,     #  BOX DRAWINGS LIGHT DOWN AND LEFT
+    0x2514: 0x00c0,     #  BOX DRAWINGS LIGHT UP AND RIGHT
+    0x2518: 0x00d9,     #  BOX DRAWINGS LIGHT UP AND LEFT
+    0x251c: 0x00c3,     #  BOX DRAWINGS LIGHT VERTICAL AND RIGHT
+    0x2524: 0x00b4,     #  BOX DRAWINGS LIGHT VERTICAL AND LEFT
+    0x252c: 0x00c2,     #  BOX DRAWINGS LIGHT DOWN AND HORIZONTAL
+    0x2534: 0x00c1,     #  BOX DRAWINGS LIGHT UP AND HORIZONTAL
+    0x253c: 0x00c5,     #  BOX DRAWINGS LIGHT VERTICAL AND HORIZONTAL
+    0x2550: 0x00cd,     #  BOX DRAWINGS DOUBLE HORIZONTAL
+    0x2551: 0x00ba,     #  BOX DRAWINGS DOUBLE VERTICAL
+    0x2554: 0x00c9,     #  BOX DRAWINGS DOUBLE DOWN AND RIGHT
+    0x2557: 0x00bb,     #  BOX DRAWINGS DOUBLE DOWN AND LEFT
+    0x255a: 0x00c8,     #  BOX DRAWINGS DOUBLE UP AND RIGHT
+    0x255d: 0x00bc,     #  BOX DRAWINGS DOUBLE UP AND LEFT
+    0x2560: 0x00cc,     #  BOX DRAWINGS DOUBLE VERTICAL AND RIGHT
+    0x2563: 0x00b9,     #  BOX DRAWINGS DOUBLE VERTICAL AND LEFT
+    0x2566: 0x00cb,     #  BOX DRAWINGS DOUBLE DOWN AND HORIZONTAL
+    0x2569: 0x00ca,     #  BOX DRAWINGS DOUBLE UP AND HORIZONTAL
+    0x256c: 0x00ce,     #  BOX DRAWINGS DOUBLE VERTICAL AND HORIZONTAL
+    0x2580: 0x00df,     #  UPPER HALF BLOCK
+    0x2584: 0x00dc,     #  LOWER HALF BLOCK
+    0x2588: 0x00db,     #  FULL BLOCK
+    0x2591: 0x00b0,     #  LIGHT SHADE
+    0x2592: 0x00b1,     #  MEDIUM SHADE
+    0x2593: 0x00b2,     #  DARK SHADE
+    0x25a0: 0x00fe,     #  BLACK SQUARE
+}
diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py
index ff91ce4cd54..254bc4dc794 100644
--- a/Lib/test/test_codecs.py
+++ b/Lib/test/test_codecs.py
@@ -1190,6 +1190,7 @@ all_unicode_encodings = [
     "cp424",
     "cp437",
     "cp500",
+    "cp720",
     "cp737",
     "cp775",
     "cp850",
@@ -1197,6 +1198,7 @@ all_unicode_encodings = [
     "cp855",
     "cp856",
     "cp857",
+    "cp858",
     "cp860",
     "cp861",
     "cp862",
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 368788f8f5e..b9c062d2f29 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -700,8 +700,8 @@ class UnicodeTest(
         s = ''.join(map(chr, xrange(128)))
         for encoding in (
             'cp037', 'cp1026',
-            'cp437', 'cp500', 'cp737', 'cp775', 'cp850',
-            'cp852', 'cp855', 'cp860', 'cp861', 'cp862',
+            'cp437', 'cp500', 'cp720', 'cp737', 'cp775', 'cp850',
+            'cp852', 'cp855', 'cp858', 'cp860', 'cp861', 'cp862',
             'cp863', 'cp865', 'cp866',
             'iso8859_10', 'iso8859_13', 'iso8859_14', 'iso8859_15',
             'iso8859_2', 'iso8859_3', 'iso8859_4', 'iso8859_5', 'iso8859_6',
@@ -728,8 +728,8 @@ class UnicodeTest(
         s = ''.join(map(chr, xrange(128, 256)))
         for encoding in (
             'cp037', 'cp1026',
-            'cp437', 'cp500', 'cp737', 'cp775', 'cp850',
-            'cp852', 'cp855', 'cp860', 'cp861', 'cp862',
+            'cp437', 'cp500', 'cp720', 'cp737', 'cp775', 'cp850',
+            'cp852', 'cp855', 'cp858', 'cp860', 'cp861', 'cp862',
             'cp863', 'cp865', 'cp866',
             'iso8859_10', 'iso8859_13', 'iso8859_14', 'iso8859_15',
             'iso8859_2', 'iso8859_4', 'iso8859_5',
diff --git a/Misc/NEWS b/Misc/NEWS
index b160725cafc..b0941268897 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -29,6 +29,8 @@ C-API
 Library
 -------
 
+- Issue #8016: Add the CP858 codec.
+
 - Issue #3924: Ignore cookies with invalid "version" field in cookielib.
 
 - Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM