def var_to_xml(val, name, doTrim=True, additional_in_xml='', evaluate_full_value=True):
    """ single variable or dictionary to xml representation """

    try:
        # This should be faster than isinstance (but we have to protect against not having a '__class__' attribute).
        is_exception_on_eval = val.__class__ == ExceptionOnEvaluate
    except:
        is_exception_on_eval = False

    if is_exception_on_eval:
        v = val.result
    else:
        v = val

    _type, typeName, resolver = get_type(v)
    type_qualifier = getattr(_type, "__module__", "")
    if not evaluate_full_value:
        value = DEFAULT_VALUE
    else:
        try:
            str_from_provider = _str_from_providers(v, _type, typeName)
            if str_from_provider is not None:
                value = str_from_provider
            elif hasattr(v, '__class__'):
                if v.__class__ == frame_type:
                    value = pydevd_resolver.frameResolver.get_frame_name(v)

                elif v.__class__ in (list, tuple):
                    if len(v) > 300:
                        value = '%s: %s' % (str(v.__class__), '<Too big to print. Len: %s>' % (len(v),))
                    else:
                        value = '%s: %s' % (str(v.__class__), v)
                else:
                    try:
                        cName = str(v.__class__)
                        if cName.find('.') != -1:
                            cName = cName.split('.')[-1]

                        elif cName.find("'") != -1:  # does not have '.' (could be something like <type 'int'>)
                            cName = cName[cName.index("'") + 1:]

                        if cName.endswith("'>"):
                            cName = cName[:-2]
                    except:
                        cName = str(v.__class__)

                    value = '%s: %s' % (cName, v)
            else:
                value = str(v)
        except:
            try:
                value = repr(v)
            except:
                value = 'Unable to get repr for %s' % v.__class__

    try:
        name = quote(name, '/>_= ')  # TODO: Fix PY-5834 without using quote
    except:
        pass

    xml = '<var name="%s" type="%s" ' % (make_valid_xml_value(name), make_valid_xml_value(typeName))

    if type_qualifier:
        xml_qualifier = 'qualifier="%s"' % make_valid_xml_value(type_qualifier)
    else:
        xml_qualifier = ''

    if value:
        # cannot be too big... communication may not handle it.
        if len(value) > MAXIMUM_VARIABLE_REPRESENTATION_SIZE and doTrim:
            value = value[0:MAXIMUM_VARIABLE_REPRESENTATION_SIZE]
            value += '...'

        # fix to work with unicode values
        try:
            if not IS_PY3K:
                if value.__class__ == unicode:  # @UndefinedVariable
                    value = value.encode('utf-8')
            else:
                if value.__class__ == bytes:
                    value = value.encode('utf-8')
        except TypeError:  # in java, unicode is a function
            pass

        xml_value = ' value="%s"' % (make_valid_xml_value(quote(value, '/>_= ')))
    else:
        xml_value = ''

    if is_exception_on_eval:
        xml_container = ' isErrorOnEval="True"'
    else:
        if resolver is not None:
            xml_container = ' isContainer="True"'
        else:
            xml_container = ''

    return ''.join((xml, xml_qualifier, xml_value, xml_container, additional_in_xml, ' />\n'))
 single variable or dictionary to xml representation 
debugger/src/_pydevd_bundle/pydevd_xml.py