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Shadow9d #123

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d1b85df
Created using Colaboratory
Deb1an-netizen Oct 4, 2018
a2716c7
Created using Colaboratory
Deb1an-netizen Oct 6, 2018
a612cf1
list done
Deb1an-netizen Oct 12, 2018
fd33934
Created using Colaboratory
Deb1an-netizen Oct 12, 2018
6034f94
Created using Colaboratory
Deb1an-netizen Oct 12, 2018
598afff
Created using Colaboratory
Deb1an-netizen Oct 12, 2018
94c0d2b
Done.
Deb1an-netizen Jan 17, 2019
4a6af5b
Done
Deb1an-netizen Jan 17, 2019
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393 changes: 393 additions & 0 deletions Lists.ipynb
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Original file line number Diff line number Diff line change
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{
"nbformat": 4,
"nbformat_minor": 0,
"metadata": {
"colab": {
"name": "Lists.ipynb",
"version": "0.3.2",
"provenance": []
},
"kernelspec": {
"name": "python3",
"display_name": "Python 3"
}
},
"cells": [
{
"metadata": {
"id": "e0R1W0Vzm4UU",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"# Exercise - List"
]
},
{
"metadata": {
"id": "TrO7XNQnnQZ7",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"1) Create any random list and assign it to a variable dummy_list"
]
},
{
"metadata": {
"id": "bjl-2QkznWid",
"colab_type": "code",
"colab": {}
},
"cell_type": "code",
"source": [
"import random\n",
"dummy_list = [0]\n",
"for x in range(10):\n",
" x = random.randint(1,999)\n",
" dummy_list.append(x)"
],
"execution_count": 0,
"outputs": []
},
{
"metadata": {
"id": "cDjddNGfngnp",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"2) print dummy_list"
]
},
{
"metadata": {
"id": "RVL5178inz9M",
"colab_type": "code",
"outputId": "498ef785-47a4-4a5b-ef9b-8f536a7e9928",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"print(dummy_list)"
],
"execution_count": 2,
"outputs": [
{
"output_type": "stream",
"text": [
"[0, 354, 225, 129, 442, 101, 71, 584, 580, 553, 216]\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "15jKDXxkn16M",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"3) Reverse dummy_list and print"
]
},
{
"metadata": {
"id": "bYa9gFOOn-4o",
"colab_type": "code",
"outputId": "f4d178ac-5227-4ab0-a9a5-0ddfedbe94a5",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"dummy_list.reverse()\n",
"print(dummy_list)"
],
"execution_count": 3,
"outputs": [
{
"output_type": "stream",
"text": [
"[216, 553, 580, 584, 71, 101, 442, 129, 225, 354, 0]\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "EShv0nfXpUys",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"4) Add the list dummy_list_2 to the previous dummy_list and now print dummy_list"
]
},
{
"metadata": {
"id": "Ngkc7hnYphg6",
"colab_type": "code",
"outputId": "2507ad53-6f9e-4bed-e74f-e174452b7ca5",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"dummy_list_2 = [2, 200, 16, 4, 1, 0, 9.45, 45.67, 90, 12.01, 12.02]\n",
"x = len(dummy_list_2)\n",
"for i in range(0,x): #to eliminate the '[]' from the list\n",
" dummy_list.append(dummy_list_2[i])\n",
"print(dummy_list)"
],
"execution_count": 4,
"outputs": [
{
"output_type": "stream",
"text": [
"[216, 553, 580, 584, 71, 101, 442, 129, 225, 354, 0, 2, 200, 16, 4, 1, 0, 9.45, 45.67, 90, 12.01, 12.02]\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "Le1aRTuYoDzS",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"5) Create a dictionary named dummy_dict which contains all the elements of dummy_list as keys and frequency as values. "
]
},
{
"metadata": {
"id": "VHfSR_Csthnk",
"colab_type": "code",
"colab": {}
},
"cell_type": "code",
"source": [
"dummy_dict = {}\n",
"total = len(dummy_list)\n",
"for i in range(total):\n",
" temp = dummy_list[i]\n",
" dummy_dict[temp] = dummy_list.count(temp)"
],
"execution_count": 0,
"outputs": []
},
{
"metadata": {
"id": "rtPC6WkSos-y",
"colab_type": "code",
"colab": {}
},
"cell_type": "code",
"source": [
""
],
"execution_count": 0,
"outputs": []
},
{
"metadata": {
"id": "RgCYpFXGou6q",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"6) print dummy_dict"
]
},
{
"metadata": {
"id": "qe5E5IgxpTWU",
"colab_type": "code",
"outputId": "d3c5edcf-e7f5-4790-9a27-7654e7412a96",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"print(dummy_dict)"
],
"execution_count": 6,
"outputs": [
{
"output_type": "stream",
"text": [
"{216: 1, 553: 1, 580: 1, 584: 1, 71: 1, 101: 1, 442: 1, 129: 1, 225: 1, 354: 1, 0: 2, 2: 1, 200: 1, 16: 1, 4: 1, 1: 1, 9.45: 1, 45.67: 1, 90: 1, 12.01: 1, 12.02: 1}\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "8n_nsBDup4--",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"7) Sort dummy_list in ascending order as well as descending order and print the changed lists "
]
},
{
"metadata": {
"id": "Z_m7vr26qKnK",
"colab_type": "code",
"outputId": "b93e549e-60d2-4b22-ab22-22d723f43b8b",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 53
}
},
"cell_type": "code",
"source": [
"dummy_list.sort()\n",
"print(dummy_list)\n",
"dummy_list.sort(reverse=True)\n",
"print(dummy_list)"
],
"execution_count": 7,
"outputs": [
{
"output_type": "stream",
"text": [
"[0, 0, 1, 2, 4, 9.45, 12.01, 12.02, 16, 45.67, 71, 90, 101, 129, 200, 216, 225, 354, 442, 553, 580, 584]\n",
"[584, 580, 553, 442, 354, 225, 216, 200, 129, 101, 90, 71, 45.67, 16, 12.02, 12.01, 9.45, 4, 2, 1, 0, 0]\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "Znm5Qo4LqPKA",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"8) Remove the first item from the list whose value is equal to x. It raises a ValueError if there is no such item."
]
},
{
"metadata": {
"id": "1-8mlngDqYvS",
"colab_type": "code",
"outputId": "eaa954d6-91c4-4556-878b-457bd0f59a97",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"x = 200\n",
"dummy_list.remove(x)\n",
"print(dummy_list)\n",
"\n",
"#dummy_list.remove(13) \n",
"#ValueError Traceback (most recent call last)\n",
"#<ipython-input-11-0c23785c7afd> in <module>()\n",
"# 1 x = 200\n",
"#---> 2 dummy_list.remove(x)\n",
"# 3 print(dummy_list)\n",
"# 4 dummy_list.remove(13)\n",
"# 5 \n",
"#\n",
"#ValueError: list.remove(x): x not in list\n",
"# Let's play: try the same with something which is not in the list to get the ValueError"
],
"execution_count": 8,
"outputs": [
{
"output_type": "stream",
"text": [
"[584, 580, 553, 442, 354, 225, 216, 129, 101, 90, 71, 45.67, 16, 12.02, 12.01, 9.45, 4, 2, 1, 0, 0]\n"
],
"name": "stdout"
}
]
},
{
"metadata": {
"id": "QPB6iGbeqviN",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"9) Remove the item at position x. x is any random integer"
]
},
{
"metadata": {
"id": "NakdzAYoRLwv",
"colab_type": "code",
"colab": {}
},
"cell_type": "code",
"source": [
"# Let's play: try doing the same with x > len(dummy_list) + 1 and see what you get\n",
"import random\n",
"x = random.randint(0,len(dummy_list))\n",
"dummy_list.remove(x)\n",
"\n",
"#to get the value errors\n",
"#x = len(dummy_list) + 1\n",
"#dummy_list.remove(x)"
],
"execution_count": 0,
"outputs": []
},
{
"metadata": {
"id": "bqQnnsr8rm6G",
"colab_type": "text"
},
"cell_type": "markdown",
"source": [
"10) Let's clean everything clear the list and then print"
]
},
{
"metadata": {
"id": "aMyo1gmRrVHo",
"colab_type": "code",
"outputId": "e932f27d-579e-482f-e913-77df3c2ec5e9",
"colab": {
"base_uri": "https://localhost:8080/",
"height": 35
}
},
"cell_type": "code",
"source": [
"dummy_list.clear()\n",
"print(dummy_list)"
],
"execution_count": 10,
"outputs": [
{
"output_type": "stream",
"text": [
"[]\n"
],
"name": "stdout"
}
]
}
]
}
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