assignment 4 finished
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Week_4_Assignment.ipynb
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Week_4_Assignment.ipynb
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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Intelligent World Informatics LectureV: Assignment Week 4\n",
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"- Author: Paul Lödige (ploedige@g.ecc.u-tokyo.ac.jp)\n",
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"- Student ID: 37-229753\n",
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" \n",
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"## Assignment\n",
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"- Like usual, try to get familiar with dictionaries.\n",
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"- Create nested dictionaries, add lists as dictionary values (or even nested lists inside nested dictionaries)\n",
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" - Create copies of the dictionaries, modify the lists, and see what happens!"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 13,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"{'dict_list': {'one': 1, 'two': 2, 'three': 3, 'four': [5, 6, 7]}, 'dict_tup': {'one': 1, 'two': 2, 'three': 3, 'four': (4, 5, 6)}, 'deep_dict': {'one': 1, 'two': 2, 'three': 3, 'four': {'one': 4, 'two': 5, 'three': 6, 'four': (7, 8, 9, [10, 11, 12])}}}\n"
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]
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}
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],
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"source": [
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"# create dictionary that contains a list\n",
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"dict_list = {\n",
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" \"one\": 1,\n",
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" \"two\": 2,\n",
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" \"three\": 3,\n",
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" \"four\": [5, 6, 7]\n",
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"}\n",
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"# create dictionary that contains a tuple\n",
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"dict_tup = {\n",
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" \"one\": 1,\n",
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" \"two\": 2,\n",
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" \"three\": 3,\n",
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" \"four\": (4, 5, 6)\n",
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"}\n",
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"# create deep nested dictionary\n",
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"deep_dict = {\n",
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" \"one\": 1,\n",
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" \"two\": 2,\n",
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" \"three\": 3,\n",
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" \"four\": {\n",
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" \"one\": 4,\n",
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" \"two\": 5,\n",
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" \"three\": 6,\n",
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" \"four\": (7, 8, 9, [10, 11, 12])\n",
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" }\n",
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"}\n",
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"# create a dictionary of all the objects above\n",
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"obj_dict = {\n",
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" \"dict_list\": dict_list,\n",
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" \"dict_tup\": dict_tup,\n",
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" \"deep_dict\": deep_dict\n",
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"}\n",
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"print(obj_dict)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 14,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"4\n",
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"4\n",
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"4\n"
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]
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}
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],
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"source": [
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"# print the length of the different objects\n",
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"for obj in obj_dict.values():\n",
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" print(len(obj))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 15,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"dict_list\n",
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"\tone: <class 'int'>\n",
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"\ttwo: <class 'int'>\n",
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"\tthree: <class 'int'>\n",
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"\tfour: <class 'list'>\n",
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"dict_tup\n",
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"\tone: <class 'int'>\n",
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"\ttwo: <class 'int'>\n",
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"\tthree: <class 'int'>\n",
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"\tfour: <class 'tuple'>\n",
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"deep_dict\n",
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"\tone: <class 'int'>\n",
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"\ttwo: <class 'int'>\n",
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"\tthree: <class 'int'>\n",
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"\tfour: <class 'dict'>\n"
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]
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}
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],
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"source": [
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"# print the type of each element in each item\n",
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"for name, obj in obj_dict.items():\n",
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" print(f\"{name}\")\n",
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" for key, value in obj.items():\n",
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" print(f\"\\t{key}: {type(value)}\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 16,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"dict_list: SUCCESS\n",
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"dict_tup: SUCCESS\n",
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"deep_dict: SUCCESS\n",
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"{'dict_list': {'one': 1, 'two': 42, 'three': 3, 'four': [5, 6, 7]}, 'dict_tup': {'one': 1, 'two': 42, 'three': 3, 'four': (4, 5, 6)}, 'deep_dict': {'one': 1, 'two': 42, 'three': 3, 'four': {'one': 4, 'two': 5, 'three': 6, 'four': (7, 8, 9, [10, 11, 12])}}}\n"
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]
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}
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],
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"source": [
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"# try to replace every second item with 42\n",
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"for name, obj in obj_dict.items():\n",
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" try:\n",
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" obj[\"two\"] = 42\n",
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" print(f\"{name}: SUCCESS\")\n",
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" except Exception as e:\n",
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" print(f\"{name}: ERROR ({e})\")\n",
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"print(obj_dict)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 17,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"dict_list: SUCCESS\n",
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"dict_tup: ERROR ('tuple' object does not support item assignment)\n",
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"deep_dict: SUCCESS\n",
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"{'dict_list': {'one': 1, 'two': 42, 'three': 3, 'four': [5, 6, 'test']}, 'dict_tup': {'one': 1, 'two': 42, 'three': 3, 'four': (4, 5, 6)}, 'deep_dict': {'one': 1, 'two': 42, 'three': 3, 'four': {'one': 4, 'two': 5, 'three': 'test', 'four': (7, 8, 9, [10, 11, 12])}}}\n"
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]
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}
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],
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"source": [
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"# try to replace every third item of a subcollection with \"test\" \n",
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"for name, obj in obj_dict.items():\n",
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" try:\n",
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" for collection in [element for element in obj.values() if type(element) is not int]:\n",
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" if type(collection) is dict:\n",
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" collection[\"three\"] = \"test\"\n",
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" else:\n",
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" collection[2] = \"test\"\n",
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" print(f\"{name}: SUCCESS\")\n",
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" except Exception as e:\n",
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" print(f\"{name}: ERROR ({e})\")\n",
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"print(obj_dict)"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3.10.8 64-bit",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.10.8"
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},
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"orig_nbformat": 4,
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"vscode": {
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"interpreter": {
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}
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