Assignment(Python_task_1).ipynb

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    "Q1: Create a function which will take a list as an argument and return the product of all the numbers\n",
    "after creating a flat list.\n",
    "Use the below-given list as an argument for your function.\n",
    "list1 = [1,2,3,4, [44,55,66, True], False, (34,56,78,89,34), {1,2,3,3,2,1}, {1:34, \"key2\": [55, 67, 78, 89], 4: (45,\n",
    "22, 61, 34)}, [56, 'data science'], 'Machine Learning']\n",
    "Note: you must extract numeric keys and values of the dictionary also."
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      "2315262738624675840\n"
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    "from typing import List\n",
    "\n",
    "def get_product(lst: List):\n",
    "    flat_list = []\n",
    "    def flatten(lst):\n",
    "        for item in lst:\n",
    "            if type(item) in (list, tuple, set, dict):\n",
    "                flatten(item)\n",
    "            elif type(item) == int:\n",
    "                flat_list.append(item)\n",
    "    flatten(lst)\n",
    "    product = 1\n",
    "    for num in flat_list:\n",
    "        product *= num\n",
    "    return product\n",
    "\n",
    "list1 = [1,2,3,4, [44,55,66, True], False, (34,56,78,89,34), {1,2,3,3,2,1}, {1:34, \"key2\": [55, 67, 78, 89], 4: (45, 22, 61, 34)}, [56, 'data science'], 'Machine Learning']\n",
    "print(get_product(list1))"
   ]
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   "source": [
    "Q2. Write a python program for encrypting a message sent to you by your friend. The logic of encryption\n",
    "should be such that, for a the output should be z. For b, the output should be y. For c, the output should\n",
    "be x respectively. Also, the whitespace should be replaced with a dollar sign. Keep the punctuation\n",
    "marks unchanged.\n",
    "Input Sentence: I want to become a Data Scientist.\n",
    "Encrypt the above input sentence using the program you just created.\n",
    "Note: Convert the given input sentence into lowercase before encrypting. The final output should be\n",
    "lowercase."
   ]
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   "source": [
    "def encrypt(sentence):\n",
    "  sentence = sentence.lower()\n",
    "  encryption = {}\n",
    "  for i in range(26):\n",
    "    encryption[chr(i + ord('a'))] = chr((25 - i) + ord('a'))\n",
    "  encryption[' '] = '$'\n",
    "  encrypted_sentence = ''\n",
    "  for char in sentence:\n",
    "    if char in encryption:\n",
    "      encrypted_sentence += encryption[char]\n",
    "    else:\n",
    "      encrypted_sentence += char\n",
    "  return encrypted_sentence\n",
    "\n",
    "sentence = \"I want to become a Data Scientist.\"\n",
    "encrypted_sentence = encrypt(sentence)\n",
    "print(\"Encrypted sentence:\", encrypted_sentence)"
   ]
  }
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