Harp150_week 4 Tuples and sets .ipynb

{"nbformat":4,"nbformat_minor":0,"metadata":{"colab":{"provenance":[],"authorship_tag":"ABX9TyODajxpnt0luHKGGnRGp1XA"},"kernelspec":{"name":"python3","display_name":"Python 3"},"language_info":{"name":"python"}},"cells":[{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"XRBH0fEqvnE1","executionInfo":{"status":"ok","timestamp":1707245480441,"user_tz":300,"elapsed":17,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"034b7406-d40f-489d-df55-5467a5009f70"},"outputs":[{"output_type":"stream","name":"stdout","text":["150.25 1000\n"]}],"source":["# here are two other built-in data structures in Python that we are going to review today – Tuples and Sets\n","# You’re less likely to use these data structures at this point in your coding journey, but they can be very useful in the future for some particular situations.\n","# Feel free to follow along in your environment!\n","\n","\n","# A tuple is an immutable/unchangeable, ordered object\n","# Delineated with the use of parentheses ()\n","# You can change a list into a tuple by using the tuple()\n","\n","\n","# Tuples are preferred to lists if you don’t want your data to be changed at any point\n","# They also take up much less memory\n","# There are only two tuple methods! count() and index()\n","\n","\n","# count()\tReturns the number of times a specified value occurs in a tuple\n","# index() Searches the tuple for a specified value and returns the position of where it was found\n","\n","# Tuple unpacking/multiple assignment\n","# # the ability to have a tuple on the left side of an assignment statement. This allows you to assign more than one variable at a time.\n","# # Tuples are often used in Python to group multiple values together into a single container. Each value within the tuple is typically related.\n","# # Swap variables/values\n","# We can use tuple unpacking on a list and a dictionary too!\n","\n","#example of dictionary use with tuples\n","\n","\n","\n","\n","stock_data = {\n","    \"symbol\" : \"AAPL\",\n","    \"price\": 150.25,\n","    \"quantity\" : 1000\n","}\n","\n","symbol, price, quantity = stock_data[\"symbol\"],stock_data[\"price\"],stock_data[\"quantity\"]\n","\n","print(price,  quantity)\n"]},{"cell_type":"code","source":["#variable swap\n","\n","a =5\n","b= 10\n","\n","print(a,b)\n","a,b = b,a\n","\n","print(a,b)\n","print(b,a)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"G1EHdlLDwuNM","executionInfo":{"status":"ok","timestamp":1707245545344,"user_tz":300,"elapsed":21,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"41aceba2-1c8d-48ea-a9c7-6c3f3747cf82"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["5 10\n","10 5\n","5 10\n"]}]},{"cell_type":"code","source":["#tuples being used to unpack an or assign multiple times\n","\n","robot = (\"bender\", 2296, 2716057, \"bending unit\")\n","Name, year, serial, model = robot\n","\n","print(year, Name, serial, model)\n","\n","print(Name, year, serial, model)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"8whJuA_1w9R2","executionInfo":{"status":"ok","timestamp":1707245642695,"user_tz":300,"elapsed":23,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"51bcaba3-5134-4e87-882d-8012d4962d11"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["2296 bender 2716057 bending unit\n","bender 2296 2716057 bending unit\n"]}]},{"cell_type":"code","source":["#function of count() which returns the number of times a specificed value occurs in a tuple\n","\n","\n","\n","my_tuple = (3,4,2,1,5,6,4,2,3)\n","my_tuple.count(3)#this means that the number 3 was shown 3 times in this tuple\n"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"HxtuFue5xUfu","executionInfo":{"status":"ok","timestamp":1707245786303,"user_tz":300,"elapsed":17,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"50b99dad-41ce-425a-fb54-6291baaffce8"},"execution_count":null,"outputs":[{"output_type":"execute_result","data":{"text/plain":["0"]},"metadata":{},"execution_count":11}]},{"cell_type":"code","source":["#index() Searches the tuple for a specified value and returns the position of where it was found\n","my_tuple = (3,4,2,8,1,5,6,4,2)\n","\n","my_tuple.index(4)\n","\n","#this means that the number 4 was found at position 1\n","\n","my_tuple.index(8)\n","\n","#this means the number 8 was found at position 3"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"2IyC5Ux6x2fb","executionInfo":{"status":"ok","timestamp":1707245872081,"user_tz":300,"elapsed":159,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"bfd79373-da4b-4619-9654-6a0daab024c2"},"execution_count":null,"outputs":[{"output_type":"execute_result","data":{"text/plain":["3"]},"metadata":{},"execution_count":15}]},{"cell_type":"code","source":["# We can use tuple unpacking on a list and a dictionary too!\n","\n","times = \"2024, 01, 01, 23, 59\"\n","times_list = times.split(\",\")\n","year, month, day, hour, minute = times.split(\",\")\n","\n","print(\"year: \" + year + \" month: \" + month + \" day \" + day)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"yqVUPAV8yxG0","executionInfo":{"status":"ok","timestamp":1707246136395,"user_tz":300,"elapsed":185,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"23d32b37-7985-4d2b-a9e0-67604a4ae651"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["year: 2024 month:  01 day  01\n"]}]},{"cell_type":"code","source":["#we can use an underscore as a placeholder vor falues you wanna ignore in the tuple\n","\n","# times = \"2024, 01, 01, 23, 59\"\n","# year,_,_,_, _ = times.split(\",\")\n","# year\n","\n","times = \"2024, 01, 01, 23, 59\"\n","_,month,_,_, _ = times.split(\",\")\n","month"],"metadata":{"colab":{"base_uri":"https://localhost:8080/","height":35},"id":"4XaxjpWszMoa","executionInfo":{"status":"ok","timestamp":1707246231449,"user_tz":300,"elapsed":9,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"6c6c82a1-d44e-41fd-dc5e-982ec54fc37f"},"execution_count":null,"outputs":[{"output_type":"execute_result","data":{"text/plain":["' 01'"],"application/vnd.google.colaboratory.intrinsic+json":{"type":"string"}},"metadata":{},"execution_count":24}]},{"cell_type":"code","source":["#We can use it on nested data structures too!\n","coordinates = [(40.7128, 74.0060), (42.6526, 73.7562), (42.0987,75.9180)]\n","#use tuple unpacking\n","(new_york_lat,new_york_long),albany,binghamton= coordinates\n","print(new_york_lat)\n","print(albany)"],"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"id":"KVPCAgS112Ky","executionInfo":{"status":"ok","timestamp":1707246943781,"user_tz":300,"elapsed":181,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"d522da76-5068-4dc4-f28f-5502c403b97c"},"execution_count":null,"outputs":[{"output_type":"stream","name":"stdout","text":["40.7128\n","(42.6526, 73.7562)\n"]}]},{"cell_type":"code","source":["# Exercise 1:\n","# Let’s create a tuple of your choice. For example, it can represent a student’s information, including their name, ID, and email.\n","# Next, create a list of tuples. For instance, each tuple can represent the information of a different student.\n","# Use tuple unpacking to print out the name, ID, and email of a specific student from your list of tuples. Alternatively, print the information from one specific tuple within your chosen list of tuples.\n","# Lastly, create a new tuple and add it to your list.\n","\n","\n","# info = (\"Joshua\",141, \"jcheuk2\")\n","# first, ID, email = info\n","\n","# info2 = (\"isabell , 142, icheuk2\")\n","# info2_list = info2.split(\",\")\n","# first, ID, email = info2.split(\",\")\n","\n","\n","# print(\"name: \" + first + \" ID: \" + ID + \" email \" + email)\n","\n","\n","info3 = \"Joshua,141,jcheuk2, isabell , 142, icheuk2\"\n","info3 = info3.split(\",\")\n","name1, ID1, email1, name2, ID2, email = info3.split(\",\")\n","(name1,ID1,email1),(name2,ID2,email2)= student_info\n","\n","print(ID2)\n","\n","\n","IDK WHAT THIS IS COME BACK TO THIS."],"metadata":{"colab":{"base_uri":"https://localhost:8080/","height":245},"id":"XAMg2w9WyRdz","executionInfo":{"status":"error","timestamp":1707247290712,"user_tz":300,"elapsed":167,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"f4c9a553-9e70-4f97-df2e-2e9c4e773756"},"execution_count":null,"outputs":[{"output_type":"error","ename":"AttributeError","evalue":"'tuple' object has no attribute 'split'","traceback":["\u001b[0;31m---------------------------------------------------------------------------\u001b[0m","\u001b[0;31mAttributeError\u001b[0m                            Traceback (most recent call last)","\u001b[0;32m<ipython-input-37-e90a52bbefa6>\u001b[0m in \u001b[0;36m<cell line: 20>\u001b[0;34m()\u001b[0m\n\u001b[1;32m     18\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     19\u001b[0m \u001b[0minfo3\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"Joshua,141,jcheuk2\"\u001b[0m \u001b[0;34m,\u001b[0m \u001b[0;34m\"isabell , 142, icheuk2\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 20\u001b[0;31m \u001b[0minfo3\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0minfo3\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0msplit\u001b[0m\u001b[0;34m(\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     21\u001b[0m \u001b[0mname\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mID\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0memail\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0minfo3\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0msplit\u001b[0m\u001b[0;34m(\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     22\u001b[0m \u001b[0;34m(\u001b[0m\u001b[0mname1\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mID1\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0memail1\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mname2\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0mID2\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0memail2\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m=\u001b[0m \u001b[0mstudent_info\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n","\u001b[0;31mAttributeError\u001b[0m: 'tuple' object has no attribute 'split'"]}]},{"cell_type":"markdown","source":["**→ Sets ←**\n","\n","\n","\n","\n","*   In contrast, sets are mutable, unordered objects that do NOT contain duplicates\n","*   They are delineated by {} curly brackets\n","*  Cannot store mutable objects in a set like lists & dictionaries\n","\n","*  You use sets when you want to store unique info but the order of that info is not important – also faster than a list\n","** Used frequently in mathematical operations\n","* You cna't have duplicates in sets\n","\n","\n","\n"],"metadata":{"id":"q7bH_fxFMGKm"}},{"cell_type":"code","source":["#exercise 2:\n","\n","# Let’s create an empty set.\n","# Next, create a list of at least 5 items. Make sure you have at least one duplicate item in your list.\n","# Now, turn this list you just created into a set. So we can get rid of the duplicates.\n","# Last, turn this new set back into a list and print it out.\n","# You can explore set methods if you have extra time and there are plenty!\n","set1 = {}\n","\n","list1=[\"book\",\"bottle\",\"pen\",\"pen\",\"phone\"]\n","\n","set1 = set(list1)\n","\n","print(set1)\n","\n","list1=list(set1)\n","\n","print(list1)"],"metadata":{"id":"onelTNz-ydhx","colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"status":"ok","timestamp":1708461044582,"user_tz":300,"elapsed":26,"user":{"displayName":"Joshua Cheuk","userId":"09800220979386665615"}},"outputId":"6b12a772-51bc-4092-a3eb-26f5446020cc"},"execution_count":3,"outputs":[{"output_type":"stream","name":"stdout","text":["{'book', 'phone', 'pen', 'bottle'}\n","['book', 'phone', 'pen', 'bottle']\n"]}]},{"cell_type":"code","source":[],"metadata":{"id":"1GPoosNaMfZW"},"execution_count":null,"outputs":[]}]}