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Lesson09.ipynb
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| { | |
| "cells": [ | |
| { | |
| "metadata": {}, | |
| "cell_type": "markdown", | |
| "source": "## Наука о данных\n### Совместный бакалавриат ВШЭ-РЭШ, 2021-2022 учебный год\n_Илья Щуров_\n\n[Страница курса](http://math-info.hse.ru/s21/j)" | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "robust-wichita", | |
| "cell_type": "code", | |
| "source": "x = int(input(\"Please, enter some number: \"))\nif x == 0:\n print(\"Can't use 0\")\nelse:\n print(1 / x)", | |
| "execution_count": 5, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Please, enter some number: jasdlfjaslf\n" | |
| }, | |
| { | |
| "ename": "ValueError", | |
| "evalue": "invalid literal for int() with base 10: 'jasdlfjaslf'", | |
| "output_type": "error", | |
| "traceback": [ | |
| "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", | |
| "\u001b[0;31mValueError\u001b[0m Traceback (most recent call last)", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/28762699.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mx\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0minput\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Please, enter some number: \"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 2\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0mx\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0;36m0\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 3\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Can't use 0\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 4\u001b[0m \u001b[0;32melse\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 5\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m1\u001b[0m \u001b[0;34m/\u001b[0m \u001b[0mx\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n", | |
| "\u001b[0;31mValueError\u001b[0m: invalid literal for int() with base 10: 'jasdlfjaslf'" | |
| ] | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "postal-skiing", | |
| "cell_type": "code", | |
| "source": "set(\"hello\")", | |
| "execution_count": 7, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "{'e', 'h', 'l', 'o'}" | |
| }, | |
| "execution_count": 7, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "durable-chapel", | |
| "cell_type": "code", | |
| "source": "s = input(\"Please, enter some number: \")\nif not set(s).issubset(set(\"-0123456789\")):\n print(\"Should be number\")\nelse:\n x = int(s)\n if x == 0:\n print(\"Can't use 0\")\n else:\n print(1 / x)", | |
| "execution_count": 13, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Please, enter some number: 1-11-1\n" | |
| }, | |
| { | |
| "ename": "ValueError", | |
| "evalue": "invalid literal for int() with base 10: '1-11-1'", | |
| "output_type": "error", | |
| "traceback": [ | |
| "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", | |
| "\u001b[0;31mValueError\u001b[0m Traceback (most recent call last)", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/4055085847.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m 3\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Should be number\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 4\u001b[0m \u001b[0;32melse\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 5\u001b[0;31m \u001b[0mx\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0ms\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 6\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0mx\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0;36m0\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 7\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Can't use 0\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n", | |
| "\u001b[0;31mValueError\u001b[0m: invalid literal for int() with base 10: '1-11-1'" | |
| ] | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "strange-philip", | |
| "cell_type": "code", | |
| "source": "try:\n x = int(input(\"Please, enter some number: \"))\n print(1 / x)\n print(\"Success\")\nexcept ZeroDivisionError:\n print(\"Can't use 0\")\nexcept ValueError:\n print(\"It seems to be not a number\")\nprint(\"That's all\")", | |
| "execution_count": 30, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Please, enter some number: 1.\nIt seems to be not a number\nThat's all\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "suburban-control", | |
| "cell_type": "code", | |
| "source": "try:\n x = int(input(\"Please, enter some number: \"))\n print(1 / x)\n print(\"Success\")\nexcept Exception as e:\n print(\"Unkown error occurred\")\n print(type(e))\n print(e)\nprint(\"Let's continue\")", | |
| "execution_count": 40, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Please, enter some number: 0\nUnkown error occurred\n<class 'ZeroDivisionError'>\ndivision by zero\nLet's continue\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "representative-scholar", | |
| "cell_type": "code", | |
| "source": "type(E)", | |
| "execution_count": 39, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "ZeroDivisionError" | |
| }, | |
| "execution_count": 39, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "pressing-dating", | |
| "cell_type": "code", | |
| "source": "# Don't\ntry:\n x = int(input(\"Please, enter some number: \"))\n print(1 / x)\n print(\"Success\")\nexcept:\n pass\nprint(\"Let's continue\")", | |
| "execution_count": null, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "unavailable-broad", | |
| "cell_type": "code", | |
| "source": "class User:\n def __init__(self, login, first_name, last_name):\n self.login = \"@\" + login\n self.first_name = first_name\n self.last_name = last_name\n \n def say_hello(self):\n print(f\"Hello, I'm {self.first_name} {self.last_name}\")\n", | |
| "execution_count": 62, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "biblical-transport", | |
| "cell_type": "code", | |
| "source": "alice = User(\"alice\", \"Alice\", \"Smith\")\nbob = User(\"bobby\", \"Bob\", \"Johnson\")", | |
| "execution_count": 64, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "industrial-jumping", | |
| "cell_type": "code", | |
| "source": "alice.first_name", | |
| "execution_count": 65, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'Alice'" | |
| }, | |
| "execution_count": 65, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "negative-phrase", | |
| "cell_type": "code", | |
| "source": "alice.last_name", | |
| "execution_count": 66, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'Smith'" | |
| }, | |
| "execution_count": 66, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "exterior-copying", | |
| "cell_type": "code", | |
| "source": "alice.login", | |
| "execution_count": 67, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'@alice'" | |
| }, | |
| "execution_count": 67, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "smaller-prairie", | |
| "cell_type": "code", | |
| "source": "alice.say_hello()", | |
| "execution_count": 68, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Hello, I'm Alice Smith\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "banned-envelope", | |
| "cell_type": "code", | |
| "source": "type(alice.say_hello)", | |
| "execution_count": 69, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "method" | |
| }, | |
| "execution_count": 69, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "excessive-allocation", | |
| "cell_type": "code", | |
| "source": "type(alice)", | |
| "execution_count": 70, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "__main__.User" | |
| }, | |
| "execution_count": 70, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "military-summit", | |
| "cell_type": "code", | |
| "source": "alice.last_name = \"Johnson\"", | |
| "execution_count": 71, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "happy-victorian", | |
| "cell_type": "code", | |
| "source": "alice.say_hello()", | |
| "execution_count": 72, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Hello, I'm Alice Johnson\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "super-major", | |
| "cell_type": "code", | |
| "source": "alice", | |
| "execution_count": 74, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "<__main__.User at 0x113ab5810>" | |
| }, | |
| "execution_count": 74, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "prime-checklist", | |
| "cell_type": "code", | |
| "source": "print(alice)", | |
| "execution_count": 75, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "<__main__.User object at 0x113ab5810>\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "heavy-cornell", | |
| "cell_type": "code", | |
| "source": "class User:\n def __init__(self, login, first_name, last_name):\n self.login = \"@\" + login\n self.first_name = first_name\n self.last_name = last_name\n \n def say_hello(self):\n print(f\"Hello, I'm {self.first_name} {self.last_name}\")\n \n def __str__(self):\n return f\"User: ({self.login} <{self.first_name} {self.last_name}>)\"\n \n def __repr__(self):\n return f\"User({self.login[1:]!r}, {self.first_name!r}, {self.last_name!r})\"", | |
| "execution_count": 208, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "loving-vietnam", | |
| "cell_type": "code", | |
| "source": "alice = User(\"alice\", \"Alice\", \"Smith\")\nbob = User(\"bobby\", \"Bob\", \"Johnson\")", | |
| "execution_count": 209, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "threatened-cocktail", | |
| "cell_type": "code", | |
| "source": "print(alice)", | |
| "execution_count": 138, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "User: (@alice <Alice Smith>)\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "positive-custody", | |
| "cell_type": "code", | |
| "source": "str(alice)", | |
| "execution_count": 139, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'User: (@alice <Alice Smith>)'" | |
| }, | |
| "execution_count": 139, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "differential-ready", | |
| "cell_type": "code", | |
| "source": "alice", | |
| "execution_count": 140, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "User('alice', 'Alice', 'Smith')" | |
| }, | |
| "execution_count": 140, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "binary-visiting", | |
| "cell_type": "code", | |
| "source": "alice.__repr__()", | |
| "execution_count": 210, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"User('alice', 'Alice', 'Smith')\"" | |
| }, | |
| "execution_count": 210, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "smart-coordinate", | |
| "cell_type": "code", | |
| "source": "repr(alice)", | |
| "execution_count": 211, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"User('alice', 'Alice', 'Smith')\"" | |
| }, | |
| "execution_count": 211, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "documentary-potato", | |
| "cell_type": "code", | |
| "source": "s = \"123\"", | |
| "execution_count": 141, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "attempted-unknown", | |
| "cell_type": "code", | |
| "source": "print(s)", | |
| "execution_count": 142, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "123\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "together-april", | |
| "cell_type": "code", | |
| "source": "print(repr(s))", | |
| "execution_count": 143, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "'123'\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "annual-reviewer", | |
| "cell_type": "code", | |
| "source": "", | |
| "execution_count": null, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "figured-blind", | |
| "cell_type": "code", | |
| "source": "repr(s)", | |
| "execution_count": 144, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"'123'\"" | |
| }, | |
| "execution_count": 144, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "answering-mailman", | |
| "cell_type": "code", | |
| "source": "repr(repr(repr(repr(\"1\"))))", | |
| "execution_count": 145, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'\\'\\\\\\'\"\\\\\\\\\\\\\\'1\\\\\\\\\\\\\\'\"\\\\\\'\\''" | |
| }, | |
| "execution_count": 145, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "operational-swiss", | |
| "cell_type": "code", | |
| "source": "repr(\"1\")", | |
| "execution_count": 146, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"'1'\"" | |
| }, | |
| "execution_count": 146, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "amateur-authority", | |
| "cell_type": "code", | |
| "source": "repr(1)", | |
| "execution_count": 147, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'1'" | |
| }, | |
| "execution_count": 147, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "simple-toronto", | |
| "cell_type": "code", | |
| "source": "repr(repr(\"1\"))", | |
| "execution_count": 148, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'\"\\'1\\'\"'" | |
| }, | |
| "execution_count": 148, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "buried-arena", | |
| "cell_type": "code", | |
| "source": "print(\"\\\"\")", | |
| "execution_count": 149, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "\"\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "noble-forwarding", | |
| "cell_type": "code", | |
| "source": "alice", | |
| "execution_count": 150, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "User('alice', 'Alice', 'Smith')" | |
| }, | |
| "execution_count": 150, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "excess-steel", | |
| "cell_type": "code", | |
| "source": "print(repr(alice))", | |
| "execution_count": 123, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "User('alice', 'Alice', 'Smith')\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "patent-donor", | |
| "cell_type": "code", | |
| "source": "User('@alice', 'Alice', 'Smith')", | |
| "execution_count": 124, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "User('@alice', 'Alice', 'Smith')" | |
| }, | |
| "execution_count": 124, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "greatest-presence", | |
| "cell_type": "code", | |
| "source": "my_list = [\"Hello\", \"World\"]", | |
| "execution_count": 125, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "spare-composer", | |
| "cell_type": "code", | |
| "source": "my_list", | |
| "execution_count": 126, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "['Hello', 'World']" | |
| }, | |
| "execution_count": 126, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "binding-arcade", | |
| "cell_type": "code", | |
| "source": "\", \".join(my_list)", | |
| "execution_count": 127, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "'Hello, World'" | |
| }, | |
| "execution_count": 127, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "engaging-importance", | |
| "cell_type": "code", | |
| "source": "for word in my_list:\n print(word)", | |
| "execution_count": 129, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Hello\nWorld\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "seventh-intensity", | |
| "cell_type": "code", | |
| "source": "class User:\n def __init__(self, login, first_name, last_name):\n self.login = \"@\" + login\n self.first_name = first_name\n self.last_name = last_name\n \n def say_hello(self):\n print(f\"Hello, I'm {self.first_name} {self.last_name}\")\n \n def __str__(self):\n return f\"User: ({self.login} <{self.first_name} {self.last_name}>)\"\n \n def __repr__(self):\n return f\"User({self.login[1:]!r}, {self.first_name!r}, {self.last_name!r})\"\n \n ", | |
| "execution_count": 151, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "appropriate-genome", | |
| "cell_type": "code", | |
| "source": "alice = User('alice', 'Alice', 'Smith')\nalice_backup = alice", | |
| "execution_count": 155, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "reverse-storm", | |
| "cell_type": "code", | |
| "source": "del alice", | |
| "execution_count": 156, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "grand-screw", | |
| "cell_type": "code", | |
| "source": "alice_backup", | |
| "execution_count": 157, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "User('alice', 'Alice', 'Smith')" | |
| }, | |
| "execution_count": 157, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "continental-petroleum", | |
| "cell_type": "code", | |
| "source": "alice", | |
| "execution_count": 158, | |
| "outputs": [ | |
| { | |
| "ename": "NameError", | |
| "evalue": "name 'alice' is not defined", | |
| "output_type": "error", | |
| "traceback": [ | |
| "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", | |
| "\u001b[0;31mNameError\u001b[0m Traceback (most recent call last)", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/1603943322.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0malice\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m", | |
| "\u001b[0;31mNameError\u001b[0m: name 'alice' is not defined" | |
| ] | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "million-article", | |
| "cell_type": "code", | |
| "source": "all_users = []\nclass User:\n def __init__(self, login, first_name, last_name):\n self.login = \"@\" + login\n self.first_name = first_name\n self.last_name = last_name\n self.banned = False\n self.friends = []\n all_users.append(self)\n \n def say_hello(self):\n if self.banned:\n print(\"User is banned and cannot say 'Hello'\")\n else:\n print(f\"Hello, I'm {self.first_name} {self.last_name}\")\n \n def __str__(self):\n return f\"User: ({self.login} <{self.first_name} {self.last_name}>)\"\n \n def __repr__(self):\n return f\"User({self.login[1:]!r}, {self.first_name!r}, {self.last_name!r})\"\n \n def ban(self):\n self.banned = True\n \n def add_friend(self, other):\n if not isinstance(other, User):\n raise ValueError(\"other is not of class User\")\n self.friends.append(other)\n \n def say_hello_to_friends(self):\n for friend in self.friends:\n print(f\"Hello, {friend.first_name}!\")", | |
| "execution_count": 180, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "wanted-intersection", | |
| "cell_type": "code", | |
| "source": "alice = User('alice', 'Alice', 'Smith')\nbob = User('bob', 'Bob', 'Johnson')\nclaudia = User('cla', 'Claudia', 'Smith')\nalice.add_friend(bob)\nalice.add_friend(claudia)", | |
| "execution_count": 181, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "arabic-cincinnati", | |
| "cell_type": "code", | |
| "source": "all_users", | |
| "execution_count": 182, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "[User('alice', 'Alice', 'Smith'),\n User('bob', 'Bob', 'Johnson'),\n User('cla', 'Claudia', 'Smith')]" | |
| }, | |
| "execution_count": 182, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "operational-welcome", | |
| "cell_type": "code", | |
| "source": "alice.say_hello()", | |
| "execution_count": 173, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Hello, I'm Alice Smith\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "viral-filter", | |
| "cell_type": "code", | |
| "source": "alice.ban()", | |
| "execution_count": 174, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "spiritual-headquarters", | |
| "cell_type": "code", | |
| "source": "alice.say_hello()", | |
| "execution_count": 175, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "User is banned and cannot say 'Hello'\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "european-mechanics", | |
| "cell_type": "code", | |
| "source": "alice.say_hello_to_friends()", | |
| "execution_count": 176, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "Hello, Bob!\nHello, Claudia!\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "muslim-remains", | |
| "cell_type": "code", | |
| "source": "alice.add_friend(\"Bob Smith\")", | |
| "execution_count": 177, | |
| "outputs": [ | |
| { | |
| "ename": "ValueError", | |
| "evalue": "other is not of class User", | |
| "output_type": "error", | |
| "traceback": [ | |
| "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", | |
| "\u001b[0;31mValueError\u001b[0m Traceback (most recent call last)", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/2808046096.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0malice\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0madd_friend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Bob Smith\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/3675124455.py\u001b[0m in \u001b[0;36madd_friend\u001b[0;34m(self, other)\u001b[0m\n\u001b[1;32m 24\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0madd_friend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mother\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 25\u001b[0m \u001b[0;32mif\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0misinstance\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mother\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mUser\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 26\u001b[0;31m \u001b[0;32mraise\u001b[0m \u001b[0mValueError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"other is not of class User\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 27\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mfriends\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mappend\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mother\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 28\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n", | |
| "\u001b[0;31mValueError\u001b[0m: other is not of class User" | |
| ] | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "official-defendant", | |
| "cell_type": "code", | |
| "source": "alice.friends.append(\"Bob Smith\")", | |
| "execution_count": 178, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "meaning-multiple", | |
| "cell_type": "code", | |
| "source": "alice.friends", | |
| "execution_count": 179, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "[User('bob', 'Bob', 'Johnson'), User('cla', 'Claudia', 'Smith'), 'Bob Smith']" | |
| }, | |
| "execution_count": 179, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "individual-destiny", | |
| "cell_type": "code", | |
| "source": "all_users = []\nclass User:\n def __init__(self, login, first_name, last_name):\n self.login = \"@\" + login\n self.first_name = first_name\n self.last_name = last_name\n self.banned = False\n self._friends = []\n all_users.append(self)\n \n def say_hello(self):\n if self.banned:\n print(\"User is banned and cannot say 'Hello'\")\n else:\n print(f\"Hello, I'm {self.first_name} {self.last_name}\")\n \n def __str__(self):\n return f\"User: ({self.login} <{self.first_name} {self.last_name}>)\"\n \n def __repr__(self):\n return f\"User({self.login[1:]!r}, {self.first_name!r}, {self.last_name!r})\"\n \n def ban(self):\n self.banned = True\n \n def add_friend(self, other):\n if not isinstance(other, User):\n raise ValueError(\"other is not of class User\")\n self._friends.append(other)\n \n def say_hello_to_friends(self):\n for friend in self._friends:\n print(f\"Hello, {friend.first_name}!\")", | |
| "execution_count": 183, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "awful-harrison", | |
| "cell_type": "code", | |
| "source": "class MyInt:\n def __init__(self, value):\n self._value = value\n \n def __repr__(self):\n return str(self._value)\n \n def __add__(self, other):\n if isinstance(other, int):\n other_value = other\n elif isinstance(other, MyInt):\n other_value = other._value\n else:\n raise ValueError(\"Unkown type\")\n return MyInt(self._value * other_value)", | |
| "execution_count": 186, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "electrical-degree", | |
| "cell_type": "code", | |
| "source": "x = MyInt(20)\ny = MyInt(10)", | |
| "execution_count": 196, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "statewide-market", | |
| "cell_type": "code", | |
| "source": "x + 4", | |
| "execution_count": 188, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "80" | |
| }, | |
| "execution_count": 188, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "fiscal-southeast", | |
| "cell_type": "code", | |
| "source": "x.__add__(4)", | |
| "execution_count": 195, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "80" | |
| }, | |
| "execution_count": 195, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "deadly-amount", | |
| "cell_type": "code", | |
| "source": "print(x)", | |
| "execution_count": 189, | |
| "outputs": [ | |
| { | |
| "name": "stdout", | |
| "output_type": "stream", | |
| "text": "20\n" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "objective-yahoo", | |
| "cell_type": "code", | |
| "source": "x + 3", | |
| "execution_count": 190, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "60" | |
| }, | |
| "execution_count": 190, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "tough-might", | |
| "cell_type": "code", | |
| "source": "x + 3 + 5", | |
| "execution_count": 191, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "300" | |
| }, | |
| "execution_count": 191, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "resident-bidder", | |
| "cell_type": "code", | |
| "source": "x + 1 + 2", | |
| "execution_count": 192, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "40" | |
| }, | |
| "execution_count": 192, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "considerable-jacksonville", | |
| "cell_type": "code", | |
| "source": "x", | |
| "execution_count": 193, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "20" | |
| }, | |
| "execution_count": 193, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "sapphire-imaging", | |
| "cell_type": "code", | |
| "source": "x + 3 + 4", | |
| "execution_count": 194, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "240" | |
| }, | |
| "execution_count": 194, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "raising-worry", | |
| "cell_type": "code", | |
| "source": "x + y", | |
| "execution_count": 197, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "200" | |
| }, | |
| "execution_count": 197, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "congressional-theater", | |
| "cell_type": "code", | |
| "source": "z = 10", | |
| "execution_count": 198, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "labeled-racing", | |
| "cell_type": "code", | |
| "source": "z.__add__(123)", | |
| "execution_count": 199, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "133" | |
| }, | |
| "execution_count": 199, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "sorted-detroit", | |
| "cell_type": "code", | |
| "source": "def repr(x):\n return x.__repr__()", | |
| "execution_count": null, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "smoking-identification", | |
| "cell_type": "code", | |
| "source": "alice.__repr__()", | |
| "execution_count": 200, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"User('alice', 'Alice', 'Smith')\"" | |
| }, | |
| "execution_count": 200, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "sustainable-length", | |
| "cell_type": "code", | |
| "source": "repr(alice)", | |
| "execution_count": 201, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "\"User('alice', 'Alice', 'Smith')\"" | |
| }, | |
| "execution_count": 201, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "incorporate-warrant", | |
| "cell_type": "code", | |
| "source": "add(z)", | |
| "execution_count": 202, | |
| "outputs": [ | |
| { | |
| "ename": "NameError", | |
| "evalue": "name 'add' is not defined", | |
| "output_type": "error", | |
| "traceback": [ | |
| "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m", | |
| "\u001b[0;31mNameError\u001b[0m Traceback (most recent call last)", | |
| "\u001b[0;32m/var/folders/h2/9nyrt4p55kq6pdvqg02_zmj40000gn/T/ipykernel_42623/2747237090.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0madd\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mz\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m", | |
| "\u001b[0;31mNameError\u001b[0m: name 'add' is not defined" | |
| ] | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "innocent-target", | |
| "cell_type": "code", | |
| "source": "(10).__add__(30)", | |
| "execution_count": 203, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "40" | |
| }, | |
| "execution_count": 203, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "operating-enforcement", | |
| "cell_type": "code", | |
| "source": "from operator import add", | |
| "execution_count": 204, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "ethical-prison", | |
| "cell_type": "code", | |
| "source": "add(10, 40)", | |
| "execution_count": 205, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "50" | |
| }, | |
| "execution_count": 205, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "exposed-insert", | |
| "cell_type": "code", | |
| "source": "def subs_2_and_5(f):\n return f(2, 5)", | |
| "execution_count": 206, | |
| "outputs": [] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "coordinated-trash", | |
| "cell_type": "code", | |
| "source": "subs_2_and_5(add)", | |
| "execution_count": 207, | |
| "outputs": [ | |
| { | |
| "data": { | |
| "text/plain": "7" | |
| }, | |
| "execution_count": 207, | |
| "metadata": {}, | |
| "output_type": "execute_result" | |
| } | |
| ] | |
| }, | |
| { | |
| "metadata": { | |
| "trusted": false | |
| }, | |
| "id": "smart-piece", | |
| "cell_type": "code", | |
| "source": "", | |
| "execution_count": null, | |
| "outputs": [] | |
| } | |
| ], | |
| "metadata": { | |
| "kernelspec": { | |
| "name": "py3.10", | |
| "display_name": "Python 3.10", | |
| "language": "python" | |
| }, | |
| "language_info": { | |
| "name": "python", | |
| "version": "3.10.0", | |
| "mimetype": "text/x-python", | |
| "codemirror_mode": { | |
| "name": "ipython", | |
| "version": 3 | |
| }, | |
| "pygments_lexer": "ipython3", | |
| "nbconvert_exporter": "python", | |
| "file_extension": ".py" | |
| }, | |
| "gist": { | |
| "id": "", | |
| "data": { | |
| "description": "Lesson09.ipynb", | |
| "public": false | |
| } | |
| } | |
| }, | |
| "nbformat": 4, | |
| "nbformat_minor": 5 | |
| } |
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