|
| 1 | +{ |
| 2 | + "cells": [ |
| 3 | + { |
| 4 | + "cell_type": "code", |
| 5 | + "execution_count": 1, |
| 6 | + "metadata": {}, |
| 7 | + "outputs": [], |
| 8 | + "source": [ |
| 9 | + "def func(new_func):\n", |
| 10 | + " print(\"func started\")\n", |
| 11 | + " new_func()\n", |
| 12 | + " print(\"func ended\")" |
| 13 | + ] |
| 14 | + }, |
| 15 | + { |
| 16 | + "cell_type": "code", |
| 17 | + "execution_count": 2, |
| 18 | + "metadata": {}, |
| 19 | + "outputs": [], |
| 20 | + "source": [ |
| 21 | + "def hello_func():\n", |
| 22 | + " print(\"hello world\")" |
| 23 | + ] |
| 24 | + }, |
| 25 | + { |
| 26 | + "cell_type": "code", |
| 27 | + "execution_count": 3, |
| 28 | + "metadata": {}, |
| 29 | + "outputs": [ |
| 30 | + { |
| 31 | + "name": "stdout", |
| 32 | + "output_type": "stream", |
| 33 | + "text": [ |
| 34 | + "func started\n", |
| 35 | + "hello world\n", |
| 36 | + "func ended\n" |
| 37 | + ] |
| 38 | + } |
| 39 | + ], |
| 40 | + "source": [ |
| 41 | + "func(hello_func)" |
| 42 | + ] |
| 43 | + }, |
| 44 | + { |
| 45 | + "cell_type": "code", |
| 46 | + "execution_count": 14, |
| 47 | + "metadata": {}, |
| 48 | + "outputs": [], |
| 49 | + "source": [ |
| 50 | + "def new_func():\n", |
| 51 | + " print(\"new func\")\n", |
| 52 | + " def new_func_2():\n", |
| 53 | + " print(\"new func 2\")\n", |
| 54 | + " return new_func_2" |
| 55 | + ] |
| 56 | + }, |
| 57 | + { |
| 58 | + "cell_type": "code", |
| 59 | + "execution_count": 15, |
| 60 | + "metadata": {}, |
| 61 | + "outputs": [ |
| 62 | + { |
| 63 | + "name": "stdout", |
| 64 | + "output_type": "stream", |
| 65 | + "text": [ |
| 66 | + "new func\n" |
| 67 | + ] |
| 68 | + }, |
| 69 | + { |
| 70 | + "data": { |
| 71 | + "text/plain": [ |
| 72 | + "<function __main__.new_func.<locals>.new_func_2>" |
| 73 | + ] |
| 74 | + }, |
| 75 | + "execution_count": 15, |
| 76 | + "metadata": {}, |
| 77 | + "output_type": "execute_result" |
| 78 | + } |
| 79 | + ], |
| 80 | + "source": [ |
| 81 | + "new_func()" |
| 82 | + ] |
| 83 | + }, |
| 84 | + { |
| 85 | + "cell_type": "code", |
| 86 | + "execution_count": 16, |
| 87 | + "metadata": {}, |
| 88 | + "outputs": [ |
| 89 | + { |
| 90 | + "name": "stdout", |
| 91 | + "output_type": "stream", |
| 92 | + "text": [ |
| 93 | + "new func\n" |
| 94 | + ] |
| 95 | + } |
| 96 | + ], |
| 97 | + "source": [ |
| 98 | + "new_string = new_func()" |
| 99 | + ] |
| 100 | + }, |
| 101 | + { |
| 102 | + "cell_type": "code", |
| 103 | + "execution_count": 17, |
| 104 | + "metadata": {}, |
| 105 | + "outputs": [ |
| 106 | + { |
| 107 | + "name": "stdout", |
| 108 | + "output_type": "stream", |
| 109 | + "text": [ |
| 110 | + "new func 2\n" |
| 111 | + ] |
| 112 | + } |
| 113 | + ], |
| 114 | + "source": [ |
| 115 | + "new_string()" |
| 116 | + ] |
| 117 | + }, |
| 118 | + { |
| 119 | + "cell_type": "code", |
| 120 | + "execution_count": 19, |
| 121 | + "metadata": {}, |
| 122 | + "outputs": [], |
| 123 | + "source": [ |
| 124 | + "def decorator_function(func):\n", |
| 125 | + " \n", |
| 126 | + " def wrapper_function():\n", |
| 127 | + " \n", |
| 128 | + " print(\"wrapper started\")\n", |
| 129 | + " \n", |
| 130 | + " func()\n", |
| 131 | + " \n", |
| 132 | + " print(\"wrapper stopped\")\n", |
| 133 | + " \n", |
| 134 | + " return wrapper_function" |
| 135 | + ] |
| 136 | + }, |
| 137 | + { |
| 138 | + "cell_type": "code", |
| 139 | + "execution_count": 21, |
| 140 | + "metadata": {}, |
| 141 | + "outputs": [], |
| 142 | + "source": [ |
| 143 | + "def func_new():\n", |
| 144 | + " print(\"hello world\")" |
| 145 | + ] |
| 146 | + }, |
| 147 | + { |
| 148 | + "cell_type": "code", |
| 149 | + "execution_count": 23, |
| 150 | + "metadata": {}, |
| 151 | + "outputs": [], |
| 152 | + "source": [ |
| 153 | + "example_function = decorator_function(func_new)" |
| 154 | + ] |
| 155 | + }, |
| 156 | + { |
| 157 | + "cell_type": "code", |
| 158 | + "execution_count": 25, |
| 159 | + "metadata": {}, |
| 160 | + "outputs": [ |
| 161 | + { |
| 162 | + "name": "stdout", |
| 163 | + "output_type": "stream", |
| 164 | + "text": [ |
| 165 | + "wrapper started\n", |
| 166 | + "hello world\n", |
| 167 | + "wrapper stopped\n" |
| 168 | + ] |
| 169 | + } |
| 170 | + ], |
| 171 | + "source": [ |
| 172 | + "example_function()" |
| 173 | + ] |
| 174 | + }, |
| 175 | + { |
| 176 | + "cell_type": "code", |
| 177 | + "execution_count": 30, |
| 178 | + "metadata": {}, |
| 179 | + "outputs": [], |
| 180 | + "source": [ |
| 181 | + "@decorator_function\n", |
| 182 | + "def func_new():\n", |
| 183 | + " print(\"hello world\")" |
| 184 | + ] |
| 185 | + }, |
| 186 | + { |
| 187 | + "cell_type": "code", |
| 188 | + "execution_count": 31, |
| 189 | + "metadata": {}, |
| 190 | + "outputs": [ |
| 191 | + { |
| 192 | + "name": "stdout", |
| 193 | + "output_type": "stream", |
| 194 | + "text": [ |
| 195 | + "wrapper started\n", |
| 196 | + "hello world\n", |
| 197 | + "wrapper stopped\n" |
| 198 | + ] |
| 199 | + } |
| 200 | + ], |
| 201 | + "source": [ |
| 202 | + "func_new()" |
| 203 | + ] |
| 204 | + }, |
| 205 | + { |
| 206 | + "cell_type": "code", |
| 207 | + "execution_count": null, |
| 208 | + "metadata": {}, |
| 209 | + "outputs": [], |
| 210 | + "source": [] |
| 211 | + } |
| 212 | + ], |
| 213 | + "metadata": { |
| 214 | + "kernelspec": { |
| 215 | + "display_name": "Python 3", |
| 216 | + "language": "python", |
| 217 | + "name": "python3" |
| 218 | + }, |
| 219 | + "language_info": { |
| 220 | + "codemirror_mode": { |
| 221 | + "name": "ipython", |
| 222 | + "version": 3 |
| 223 | + }, |
| 224 | + "file_extension": ".py", |
| 225 | + "mimetype": "text/x-python", |
| 226 | + "name": "python", |
| 227 | + "nbconvert_exporter": "python", |
| 228 | + "pygments_lexer": "ipython3", |
| 229 | + "version": "3.6.4" |
| 230 | + } |
| 231 | + }, |
| 232 | + "nbformat": 4, |
| 233 | + "nbformat_minor": 2 |
| 234 | +} |
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