changing order of an operator.ipynb

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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Creating a class for a tuple, when I operate $a$ on $b$ I want to obtain $(a[0], b[1])$ (so order is important)."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Tuple:\n",
    "    def __init__(self, a, b):\n",
    "        self.tuple = (a, b)\n",
    "    def __mul__(self, other):\n",
    "        return (self.tuple[0], other.tuple[1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "v = Tuple(4, 5)\n",
    "u = Tuple(2, 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(4, 3)"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "v * u"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(2, 5)"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "u * v"
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Now let me modify `Tuple`, I could overide the name space or I can call it something else (calling it something else is better to avoid confusion):"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "class NewTuple(Tuple):\n",
    "    def __mul__(self, other):\n",
    "        \"\"\"Calling the original class method with order inverted\"\"\"\n",
    "        return Tuple.__mul__(other, self)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "v = NewTuple(4, 5)\n",
    "u = NewTuple(2, 3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(2, 5)"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "v * u"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(4, 3)"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "u * v"
   ]
  }
 ],
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