import unicodedata

def removeAccentedChars(s):
    return unicodedata.normalize('NFKD',s).encode('ascii','ignore')

print removeAccentedChars(u"aaàöÜ")

class Accents:
    __reptable = {}

    __corresp = [
        (u"A",  [0x00C0,0x00C1,0x00C2,0x00C3,0x00C4,0x00C5,0x0100,0x0102,0x0104]),
        (u"AE", [0x00C6]),
        (u"a",  [0x00E0,0x00E1,0x00E2,0x00E3,0x00E4,0x00E5,0x0101,0x0103,0x0105]),
        (u"ae", [0x00E6]),
        (u"C",  [0x00C7,0x0106,0x0108,0x010A,0x010C]),
        (u"c",  [0x00E7,0x0107,0x0109,0x010B,0x010D]),
        (u"D",  [0x00D0,0x010E,0x0110]),
        (u"d",  [0x00F0,0x010F,0x0111]),
        (u"E",  [0x00C8,0x00C9,0x00CA,0x00CB,0x0112,0x0114,0x0116,0x0118,0x011A]),
        (u"e",  [0x00E8,0x00E9,0x00EA,0x00EB,0x0113,0x0115,0x0117,0x0119,0x011B]),
        (u"G",  [0x011C,0x011E,0x0120,0x0122]),
        (u"g",  [0x011D,0x011F,0x0121,0x0123]),
        (u"H",  [0x0124,0x0126]),
        (u"h",  [0x0125,0x0127]),
        (u"I",  [0x00CC,0x00CD,0x00CE,0x00CF,0x0128,0x012A,0x012C,0x012E,0x0130]),
        (u"i",  [0x00EC,0x00ED,0x00EE,0x00EF,0x0129,0x012B,0x012D,0x012F,0x0131]),
        (u"IJ", [0x0132]),
        (u"ij", [0x0133]),
        (u"J",  [0x0134]),
        (u"j",  [0x0135]),
        (u"K",  [0x0136]),
        (u"k",  [0x0137,0x0138]),
        (u"L",  [0x0139,0x013B,0x013D,0x013F,0x0141]),
        (u"l",  [0x013A,0x013C,0x013E,0x0140,0x0142]),
        (u"N",  [0x00D1,0x0143,0x0145,0x0147,0x014A]),
        (u"n",  [0x00F1,0x0144,0x0146,0x0148,0x0149,0x014B]),
        (u"O",  [0x00D2,0x00D3,0x00D4,0x00D5,0x00D6,0x00D8,0x014C,0x014E,0x0150]),
        (u"o",  [0x00F2,0x00F3,0x00F4,0x00F5,0x00F6,0x00F8,0x014D,0x014F,0x0151]),
        (u"OE", [0x0152]),
        (u"oe", [0x0153]),
        (u"R",  [0x0154,0x0156,0x0158]),
        (u"r",  [0x0155,0x0157,0x0159]),
        (u"S",  [0x015A,0x015C,0x015E,0x0160]),
        (u"s",  [0x015B,0x015D,0x015F,0x01610,0x017F]),
        (u"T",  [0x0162,0x0164,0x0166]),
        (u"t",  [0x0163,0x0165,0x0167]),
        (u"U",  [0x00D9,0x00DA,0x00DB,0x00DC,0x0168,0x016A,0x016C,0x016E,0x0170,0x172]),
        (u"u",  [0x00F9,0x00FA,0x00FB,0x00FC,0x0169,0x016B,0x016D,0x016F,0x0171]),
        (u"W",  [0x0174]),
        (u"w",  [0x0175]),
        (u"Y",  [0x00DD,0x0176,0x0178]),
        (u"y",  [0x00FD,0x00FF,0x0177]),
        (u"Z",  [0x0179,0x017B,0x017D]),
        (u"z",  [0x017A,0x017C,0x017E])
        ]
    for __repchar,__codes in __corresp :
        for __code in __codes :
            __reptable[__code] = __repchar

    @staticmethod
    def clean(s):
        """ enleve les accents de 's' (unicode ou utf8), et renvoi de l'unicode
            (marche pour maj et minuscules !!!)
        """
        if isinstance(s,str) :
            s = unicode(s,"utf8","replace")
        return s.translate(Accents.__reptable)

accented chars remover

python, text

Python