Assignment-3.ipynb

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     "text": [
      "[1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25]\n"
     ]
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   "source": [
    "# Q1. Which keyword is used to create a function? Create a function to return a list of odd numbers in the \n",
    "# range of 1 to 25.\n",
    "# Answer: \n",
    "def odd_numbers(x):\n",
    "    return [i for i in range(1, x + 1) if i % 2 == 1]\n",
    "print(odd_numbers(25))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 102,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Q2. Why *args and **kwargs is used in some functions? Create a function each for *args and **kwargs\n",
    "# to demonstrate their use.\n",
    "# Answer :-\n",
    "# *args : Used to collect all the arguments in a list.\n",
    "# **kwargs : Used to collect all the keyword arguments in a dictionary.\n",
    "def func(*args):\n",
    "    print(args)\n",
    "    def func2(**kwargs):\n",
    "        print(kwargs)\n",
    "        func2(a=1, b=2, c=3)\n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 103,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]\n"
     ]
    }
   ],
   "source": [
    "# Q3.  What is an iterator in python? Name the method used to initialise the iterator object and the method \n",
    "# used for iteration. Use these methods to print the first five elements of the given list [2, 4, 6, 8, 10, 12, 14, \n",
    "# 16, 18, 20].\n",
    "# Answer :-\n",
    "# Iterator :- __iter__()\n",
    "# Iteration :- __next__()\n",
    "print(list(range(2, 21)))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 104,
   "metadata": {},
   "outputs": [],
   "source": [
    "# Q4.  What is a generator function in python? Why yield keyword is used? Give an example of a generator \n",
    "# function.\n",
    "# Answer:-\n",
    "# Generator Function is a function that return generator object. Generator object is iterable object.\n",
    "# Generator Function is a generator function. Generator function return generator object."
   ]
  },
  {
   "cell_type": "code",
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     "text": [
      "2\n",
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     ]
    }
   ],
   "source": [
    "# Q5. Create a generator function for prime numbers less than 1000. Use the next() method to print the \n",
    "# first 20 prime numbers.\n",
    "# Answer:-  \n",
    "def prime_gen():\n",
    "    i = 2\n",
    "    while i < 1000:\n",
    "        j = 2\n",
    "        while j < i:\n",
    "            if i % j == 0:\n",
    "                break\n",
    "            j += 1\n",
    "        if j == i:\n",
    "            print(i)\n",
    "            i += 1\n",
    "        else:\n",
    "            i += 1\n",
    "prime_gen()\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 106,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n",
      "1\n",
      "1\n",
      "2\n",
      "3\n",
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      "13\n",
      "21\n",
      "34\n"
     ]
    }
   ],
   "source": [
    "# Q6. Write a python program to print the first 10 Fibonacci numbers using a while loop.\n",
    "# Answer :-\n",
    "# Hint: Fibonacci numbers are defined as F(n) = F(n-1) + F(n-2)\n",
    "# Hint: Fibonacci numbers are recursively defined as F(n) = F(n-1) + F(n-2)\n",
    "def test_fib1():\n",
    "    a,b = 0,1\n",
    "    while True:\n",
    "        yield a\n",
    "        a,b = b , a+b  \n",
    "fib = test_fib1()\n",
    "for i in range(10):\n",
    "    print(next(fib))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 107,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['p', 'w', 's', 'k', 'i', 'l', 'l', 's']\n"
     ]
    }
   ],
   "source": [
    "# Q7. Write a List Comprehension to iterate through the given string: ‘pwskills’.\n",
    "# Expected output: ['p', 'w', 's', 'k', 'i', 'l', 'l', 's']\n",
    "# Answer:-\n",
    "# ['p', 'w', 's', 'k', 'i', 'l', 'l', 's']\n",
    "str = \"pwskills\"\n",
    "list_comprehension = [char for char in str]\n",
    "print(list_comprehension)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 108,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Palindrome\n"
     ]
    }
   ],
   "source": [
    "# Q8. Write a python program to check whether a given number is Palindrome or not using a while loop.\n",
    "# Answer:-\n",
    "n = int(input(\"Enter a number: \"))\n",
    "n1 = n\n",
    "n2 = 0\n",
    "while n > 0:\n",
    "    n2 = n % 10\n",
    "    n = n // 10\n",
    "    if n2 != n1:\n",
    "        print(\"Not Palindrome\")\n",
    "        break\n",
    "    else:\n",
    "        print(\"Palindrome\")\n",
    "        break"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 109,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99]\n"
     ]
    }
   ],
   "source": [
    "# Q9. Write a code to print odd numbers from 1 to 100 using list comprehension.\n",
    "# Note: Use a list comprehension to create a list from 1 to 100 and use another List comprehension to filter \n",
    "# out odd numbers.\n",
    "# Answer :-\n",
    "print([x for x in range(1,101) if x%2!=0])\n"
   ]
  }
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