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How to use _len method in yandex-tank

Best Python code snippet using yandex-tank

bitvec.py

Source:bitvec.py

...9def _check_value(value):10    if type(value) != type(0) or not 0 <= value < 2:11        raise error, 'bitvec() items must have int value 0 or 1'12import math13def _compute_len(param):14    mant, l = math.frexp(float(param))15    bitmask = 1L << l16    if bitmask <= param:17        raise RuntimeError('(param, l) = %r' % ((param, l),))18    while l:19        bitmask = bitmask >> 120        if param & bitmask:21            break22        l = l - 123    return l24def _check_key(len, key):25    if type(key) != type(0):26        raise TypeError, 'sequence subscript not int'27    if key < 0:28        key = key + len29    if not 0 <= key < len:30        raise IndexError, 'list index out of range'31    return key32def _check_slice(len, i, j):33    #the type is ok, Python already checked that34    i, j = max(i, 0), min(len, j)35    if i > j:36        i = j37    return i, j38class BitVec:39    def __init__(self, *params):40        self._data = 0L41        self._len = 042        if not len(params):43            pass44        elif len(params) == 1:45            param, = params46            if type(param) == type([]):47                value = 0L48                bit_mask = 1L49                for item in param:50                    # strict check51                    #_check_value(item)52                    if item:53                        value = value | bit_mask54                    bit_mask = bit_mask << 155                self._data = value56                self._len = len(param)57            elif type(param) == type(0L):58                if param < 0:59                    raise error, 'bitvec() can\'t handle negative longs'60                self._data = param61                self._len = _compute_len(param)62            else:63                raise error, 'bitvec() requires array or long parameter'64        elif len(params) == 2:65            param, length = params66            if type(param) == type(0L):67                if param < 0:68                    raise error, \69                      'can\'t handle negative longs'70                self._data = param71                if type(length) != type(0):72                    raise error, 'bitvec()\'s 2nd parameter must be int'73                computed_length = _compute_len(param)74                if computed_length > length:75                    print 'warning: bitvec() value is longer than the length indicates, truncating value'76                    self._data = self._data & \77                              ((1L << length) - 1)78                self._len = length79            else:80                raise error, 'bitvec() requires array or long parameter'81        else:82            raise error, 'bitvec() requires 0 -- 2 parameter(s)'83    def append(self, item):84        #_check_value(item)85        #self[self._len:self._len] = [item]86        self[self._len:self._len] = \87                  BitVec(long(not not item), 1)...

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