How to use the pyarabic.araby.ALEF_HAMZA_ABOVE function in PyArabic

for c in word:
        if previous and not previous == araby.ALEF:
            #--------- add Harakat before letter
            if  c in (araby.ALEF, araby.ALEF_MAKSURA, araby.TEH_MARBUTA,):
                marks.pop()
                marks.append(araby.FATHA)
            elif c in (araby.WAW, araby.WAW_HAMZA):
                marks.pop()
                marks.append(araby.DAMMA)
            elif  c in( araby.YEH , araby.YEH_HAMZA ):
                marks.pop()
                marks.append(araby.KASRA)
        #--------- add Harakat before letter
        if c in (araby.ALEF_HAMZA_BELOW):
                marks.append(araby.KASRA)
        elif previous in (araby.ALEF_HAMZA_BELOW, araby.ALEF_HAMZA_ABOVE):
                marks.append(araby.SUKUN)
        elif previous in (araby.ALEF, araby.YEH, araby.WAW):
                if c == araby.YEH_HAMZA : 
                    marks.append(araby.KASRA)
        else:
                marks.append(araby.NOT_DEF_HARAKA)
        previous = c        
    #print len(word) ,len(marks)
    #print marks
    return araby.joint(word, u"".join(marks))

def highlight_diacritics_html(self, text):
        """
        Highlight dfiactitics in the HTML text.
        @param text: the given text
        @type text: unicode.
        @return: the result as HTML.
        @rtype: unicode.
        """        
        hight_text = u""
        lefttag = u"<span class="tashkeel">"
        righttag = u"</span>"
        for i in range(len(text)):
            if text[i] in (araby.FATHA, araby.DAMMA, araby.KASRA, araby.SUKUN):
                if (i&gt;0 and text[i-1] not in (araby.ALEF, 
                araby.ALEF_HAMZA_ABOVE, araby.WAW_HAMZA, araby.ALEF_MADDA,
                 araby.DAL, araby.THAL, araby.WAW, araby.REH, araby.ZAIN,
            araby.SHADDA)) and (i+1%s"%text[i]
                    hight_text += u"".join([lefttag, " ", text[i], righttag])
            else:
                hight_text += text[i]
        return hight_text

    @staticmethod
    def get_in_stem_variants(stem, enclitic):
        """ return modified forms of input stem"""
        list_stem = []
        if enclitic:
            if stem.endswith(ar.TEH + ar.MEEM + ar.WAW):
                list_stem.append(stem[:-1])
            elif stem.endswith(ar.WAW):
                list_stem.append(stem + ar.ALEF)
            elif stem.endswith(ar.ALEF):
                list_stem.append(stem[:-1] + ar.ALEF_MAKSURA)
        if stem.startswith(ar.ALEF_MADDA):
            # االبداية بألف مد
            list_stem.append(ar.ALEF_HAMZA_ABOVE + \
            ar.ALEF_HAMZA_ABOVE + stem[1:])
            list_stem.append(ar.HAMZA + ar.ALEF + stem[1:])
        return list_stem
    @staticmethod

_F = FATHA
_D = DAMMA
_K = KASRA
_S = SUKUN
_A = ALEF_HARAKA
_W = WAW_HARAKA
_Y = YEH_HARAKA

_AH = ALEF_HARAKA
_YH = YEH_HARAKA
_WH = WAW_HARAKA
_AYH = ALEF_YEH_HARAKA
_AWH = ALEF_WAW_HARAKA
_YHALT = ALTERNATIVE_YEH_HARAKA
#HAMZAT
_AHA = ALEF_HAMZA_ABOVE
_AHB = ALEF_HAMZA_BELOW
_AM = ALEF_MADDA
_YHA = YEH_HAMZA
_WHA = WAW_HAMZA
_HZ = HAMZA


INITIAL_TAHMEEZ_TABLE = {_S:_HZ, _F:_AHA, _D:_AHA, _K:_AHB, _AH:_AM , 
            _WH:_AHA, _YH:_AHB, _YHALT:_AHB}


MIDDLE_TAHMEEZ_TABLE = {
_S: {_S:_HZ, _F:_AHA, _D:_WHA, _K:_YHA, _AH:_AHA, _WH:_WHA, _YH:_YHA }, 
_F: {_S:_AHA, _F:_AHA, _D:_WHA, _K:_YHA, _AH:_AHA, _WH:_WHA, _YH:_YHA }, 
_D: {_S:_WHA, _F:_WHA, _D:_WHA, _K:_YHA, _AH:_WHA, _WH:_WHA, _YH:_YHA }, 
_K: {_S:_YHA, _F:_YHA, _D:_YHA, _K:_YHA, _AH:_YHA, _WH:_YHA, _YH:_YHA },