Tutorial 3 -Python Variables.ipynb

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   "source": [
    "# Python Variables"
   ]
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   "cell_type": "code",
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   "id": "f7daec51",
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    "name = \"Mike\"\n",
    "age = 10\n",
    "price = 20.50\n"
   ]
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    "1. A-Z\n",
    "2. a-z\n",
    "3. 0-9\n",
    "4. _\n",
    "5. can not be start with a digit"
   ]
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   "cell_type": "code",
   "execution_count": 13,
   "id": "386d46eb",
   "metadata": {},
   "outputs": [],
   "source": [
    "_name = \"John\""
   ]
  },
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   "cell_type": "code",
   "execution_count": 14,
   "id": "8e99f7cc",
   "metadata": {},
   "outputs": [],
   "source": [
    "student_age =10"
   ]
  },
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   "cell_type": "code",
   "execution_count": 15,
   "id": "4594da48",
   "metadata": {},
   "outputs": [],
   "source": [
    "StudentAge = 10"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "b26a93f6",
   "metadata": {},
   "outputs": [],
   "source": [
    "studentAge = 10"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "e46a025b",
   "metadata": {},
   "outputs": [],
   "source": [
    "x = 10"
   ]
  },
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   "cell_type": "code",
   "execution_count": 19,
   "id": "67f5aa57",
   "metadata": {},
   "outputs": [
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     "output_type": "stream",
     "text": [
      "10\n",
      "10\n",
      "10\n"
     ]
    }
   ],
   "source": [
    "x = y = z = 10\n",
    "print(x)\n",
    "print(y)\n",
    "print(z)"
   ]
  },
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   "cell_type": "code",
   "execution_count": 21,
   "id": "b093d670",
   "metadata": {},
   "outputs": [
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     "output_type": "stream",
     "text": [
      "Mike\n",
      "23\n",
      "50.5\n"
     ]
    }
   ],
   "source": [
    "name , age , price = \"Mike\", 23, 50.50\n",
    "print(name)\n",
    "print(age)\n",
    "print(price)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "8d6c516a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "50\n",
      "<class 'int'>\n"
     ]
    }
   ],
   "source": [
    "x = int(price)\n",
    "\n",
    "print(x)\n",
    "print(type(x))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "1cc4279a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "50.5\n",
      "<class 'str'>\n"
     ]
    }
   ],
   "source": [
    "x = str(price)\n",
    "\n",
    "print(x)\n",
    "print(type(x))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "23636ada",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "30\n"
     ]
    }
   ],
   "source": [
    "a = 10\n",
    "b = \"20\"\n",
    "sum = a + int(b)\n",
    "print(sum)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "cc21dba3",
   "metadata": {},
   "outputs": [
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     "name": "stdout",
     "output_type": "stream",
     "text": [
      "100\n"
     ]
    },
    {
     "ename": "NameError",
     "evalue": "name 'x' is not defined",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mNameError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_20260/2076203392.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[0;32m      4\u001b[0m \u001b[1;32mdel\u001b[0m \u001b[0mx\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0;32m      5\u001b[0m \u001b[1;33m\u001b[0m\u001b[0m\n\u001b[1;32m----> 6\u001b[1;33m \u001b[0mprint\u001b[0m\u001b[1;33m(\u001b[0m\u001b[0mx\u001b[0m\u001b[1;33m)\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mNameError\u001b[0m: name 'x' is not defined"
     ]
    }
   ],
   "source": [
    "x = 100\n",
    "print(x)\n",
    "\n",
    "del x\n",
    "\n",
    "print(x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "1740275a",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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