Loading...
More Python Posts
mydict = {'carl':40, 'alan':2, 'bob':1, 'danny':0}# How to sort a dict by value Python 3>sort = {key:value for key, value in sorted(mydict.items(), key=lambda kv: (kv[1], kv[0]))}print(sort)# How to sort a dict by key Python 3>sort = {key:mydict[key] for key in sorted(mydict.keys())}print(sort)
def byte_size(s):return len(s.encode('utf-8'))byte_size('😀') # 4byte_size('Hello World') # 11
def max_n(lst, n = 1):return sorted(lst, reverse = True)[:n]max_n([1, 2, 3]) # [3]max_n([1, 2, 3], 2) # [3, 2]
# Function to multiply two matricesdef multiply_matrices(matrix1, matrix2):# Check if the matrices can be multipliedif len(matrix1[0]) != len(matrix2):print("Error: The number of columns in the first matrix must be equal to the number of rows in the second matrix.")return None# Create the result matrix filled with zerosresult = [[0 for _ in range(len(matrix2[0]))] for _ in range(len(matrix1))]# Perform matrix multiplicationfor i in range(len(matrix1)):for j in range(len(matrix2[0])):for k in range(len(matrix2)):result[i][j] += matrix1[i][k] * matrix2[k][j]return result# Example matricesmatrix1 = [[1, 2, 3],[4, 5, 6],[7, 8, 9]]matrix2 = [[10, 11],[12, 13],[14, 15]]# Multiply the matricesresult_matrix = multiply_matrices(matrix1, matrix2)# Display the resultif result_matrix is not None:print("Result:")for row in result_matrix:print(row)
"""Assignment 6The goal is to make a graph ofwho bit who and who was bitten.There should be 10 nodes and 15 edges.3 arrows of biting each other and3 arrows of someone biting themselves.Networkx can not do self bitingarrows, but it is in the code."""from graphviz import Digraph as DDotGraphfrom graphviz import Graph as UDotGraphimport networkx as nxfrom networkx.algorithms.dag import transitive_closureimport graphviz as gvimport matplotlib.pyplot as pltimport numpy as npfrom numpy.linalg import matrix_power"""class DGraph:def __init__(self):self.d = dict()def clear(self):self.d = dict()def add_node(self,n):if not self.d.get(n):self.d[n] = set()def add_edge(self,e):f,t=eself.add_node(f)self.add_node(t)vs=self.d.get(f)if not vs:self.d[f] = {t}else:vs.add(t)def add_edges_from(self,es):for e in es:self.add_edge(e)def edges(self):for f in self.d:for t in self.d[f]:yield (f,t)def number_of_nodes(self):return len(self.d)def __repr__(self):return self.d.__repr__()def show(self):dot = gv.Digraph()for e in self.edges():#print(e)f, t = edot.edge(str(f), str(t), label='')#print(dot.source)show(dot)# displays graph with graphvizdef show(dot, show=True, file_name='graph.gv'):dot.render(file_name, view=show)def showGraph(g,label="",directed=True):if directed:dot = gv.Digraph()else:dot = gv.Graph()for e in g.edges():print(e)f, t = edot.edge(str(f), str(t), label=label)print(dot.source)show(dot)def bit():G = DGraph()G.add_edge(("Blade","Samara"))G.add_edge(("Shadow","Wolfe"))G.add_edge(("Raven", "Austin"))G.add_edge(("Blade", "Alice"))G.add_edge(("Alice","Brandon"))G.add_edge(("Blade", "Wolfe"))G.add_edge(("Samara", "Robin"))G.add_edge(("Samara", "Raven"))G.add_edge(("Samara", "Hamed"))G.add_edge(("Wolfe", "Blade"))G.add_edge(("Hamed", "Samara"))G.add_edge(("Wolfe", "Shadow"))G.add_edge(("Brandon", "Brandon"))G.add_edge(("Hamed", "Hamed"))G.add_edge(("Austin", "Austin"))showGraph(G, label="bit")bit()def bitten():G=DGraph()G.add_edge(("Samara","Blade"))G.add_edge(("Wolfe","Shadow"))G.add_edge(("Austin", "Raven"))G.add_edge(("Alice","Blade"))G.add_edge(("Brandon", "Alice"))G.add_edge(("Wolfe", "Blade" ))G.add_edge(("Robin", "Samara"))G.add_edge(("Raven", "Samara"))G.add_edge(("Hamed", "Samara"))G.add_edge(("Blade", "Wolfe"))G.add_edge(("Samara", "Hamed"))G.add_edge(("Shadow", "Wolfe"))G.add_edge(("Brandon", "Brandon"))G.add_edge(("Hamed", "Hamed"))G.add_edge(("Austin", "Austin"))showGraph(G, label="bitten by")#bitten()family = ["Blade", "Samara", "Shadow", "Wolfe", "Raven", "Alice"]"""#Do transitive closure call out and the#matrix power operation should be the sameD = nx.DiGraph()#D.add_nodes_from("SamaraBladeWolfeShadowAliceRavenBrandonRobinHamedAustin")D.add_edge("Blade","Samara")D.add_edge("Shadow","Wolfe")D.add_edge("Raven", "Austin")D.add_edge("Blade", "Alice")D.add_edge("Alice","Brandon")D.add_edge("Blade", "Wolfe")D.add_edge("Samara", "Robin")D.add_edge("Samara", "Raven")D.add_edge("Samara", "Hamed")D.add_edge("Wolfe", "Blade")D.add_edge("Hamed", "Samara")D.add_edge("Wolfe", "Shadow")D.add_edge("Brandon", "Brandon")D.add_edge("Hamed", "Hamed")D.add_edge("Austin", "Austin")T = transitive_closure(D)for e in D.edges(): print(e)for n in D.nodes(): print(n)def show(H):nx.draw(H, with_labels=True, font_weight='bold')plt.show()#Use nx.to_numpy_matrix instead of nx.adjacency_matrix# M = nx.adjacency_matrix(D)# MT = nx.adjacency_matrix(T)M = nx.to_numpy_matrix(D)MT = nx.to_numpy_matrix(T)M2 = M@Mdef mPower(M, k): #M is numpy matrixassert k >= 1P = Mfor _ in range(k):P = P @ Mreturn Pdef tc(M):#compute transitive closurepassD1 = nx.DiGraph(M)D2 = nx.DiGraph(M2)print('Matrix for Original\n', M)N = nx.to_numpy_array(D,dtype=int)print('np_array for Original\n', N)print('\nMatrix for Transitive Closure\n', MT)N2 = nx.to_numpy_array(T,dtype=int)print('np_array for Transitive Closure\n', N2)show(D) #can use D, T, and numpy matrix power operationshow(T)show(T)
import os, json, boto3, requestsfrom flask import Flask, request, jsonifyfrom flask_cors import CORS, cross_originfrom random import shuffleapp = Flask(__name__)cors = CORS(app)dynamodb = boto3.resource("dynamodb", region_name="us-east-1")app.url_map.strict_slashes = FalseSECRET_KEY = os.environ.get("SECRET_KEY")@app.route("/teks")def teks_request():teks_file = open("teks.json", "r")data = json.load(teks_file)return jsonify(data)@app.route("/teks/find/113.41.<int:teks_id>.<string:section_id>")def teks_find_request(teks_id, section_id):teks_file = open("teks.json", "r")data = json.load(teks_file)for item in data:if item["id"] == teks_id:for child in item["children"]:if child["id"] == section_id:return {"tek": item, "content": child["content"]}return jsonify([f"Something went wrong. TEKS section id of {section_id} cannot be found within TEKS section {teks_id}."])@app.route("/lessonplan/read/<id>")def read_lesson_plan(id):lesson_table = dynamodb.Table("Lesson_Plans")items = lesson_table.scan()['Items']for lesson in items:if (lesson["uuid"] == id):return jsonify(lesson)return {"error": "id does not exist", "section": id}@app.route("/teks/<int:teks_id>")def teks_id_request(teks_id):teks_file = open("teks.json", "r")data = json.load(teks_file)for item in data:if item["id"] == teks_id:return jsonify(item)return jsonify([f"Something went wrong. TEKS id of {teks_id} cannot be found."])@app.route("/assessment/write", methods=["GET", "POST"])def assessment_write():assessment_json = request.jsonassessment_data = dict(assessment_json)assessment_table = dynamodb.Table("Assessments")assessment_table.put_item(Item=assessment_data)if assessment_data == get_assessment(assessment_data["id"]):return "Success"else:return "Failure"@app.route("/students/read/<id>")def students_read(id):return jsonify(get_students(id))@app.route("/students/read")def all_students_read():student_table = dynamodb.Table("Students")items = student_table.scan()['Items']return jsonify(items)@app.route("/assessment/read/<id>")def assessment_read(id):return jsonify(get_assessment(id))@app.route("/assessment/submit/<id>", methods=["POST"])def submit_assessment(id):assessments_table = dynamodb.Table("Assessments")assessment = assessments_table.get_item(Key={"id": id})if not assessment.get("Item"):return {"error": "id does not exist", "section": id}responses = {question["id"]: question["response"]for question in request.json.get("questions")}correct_answers = 0for response in responses:# print(# (# responses[response],# find_question(assessment.get("Item").get("questions"), response).get(# "correctAnswer"# ),# )# )if responses[response] == find_question(assessment.get("Item").get("questions"), response).get("correctAnswer"):correct_answers += 1score = correct_answers / len(request.json.get("questions"))users_table = dynamodb.Table("Students")users_table.update_item(Key={"uuid": request.json.get("student_id")},UpdateExpression="SET completedAssessments = list_append(completedAssessments, :i)",ExpressionAttributeValues={":i": [{"id": id,"score": round(score * 100),}]},)message = Noneif round(score * 100) > 70:message = f"Congratulations! You passed your assessment with a {round(score * 100)}%."else:message = f"You failed your assessment with a {round(score * 100)}%."sns = boto3.client("sns", region_name="us-east-1")number = "+15125967383"sns.publish(PhoneNumber=number, Message=message)return {"score": score, "message": message}def find_question(all, id):#print("id to find: ", id)for question in all:if question["id"] == id:#print(question)return questiondef get_assessment(id):assessment_table = dynamodb.Table("Assessments")results = assessment_table.get_item(Key={"id": id})if results.get("Item") is None:return {"error": "id does not exist", "section": id}else:quiz = results.get("Item")return {"title": quiz.get("title"),"id": quiz.get("id"),"questions": [{"id": question.get("id"),"title": question.get("title"),"options": random_answers(question.get("incorrectAnswers")+ [question.get("correctAnswer")]),}for question in quiz.get("questions")],}def get_students(id):students_table = dynamodb.Table('Students')results = students_table.get_item(Key = {"uuid": id})if(results.get("Item") is None):return {'error': 'id does not exist', 'section': id}else:student = results.get("Item")return studentdef lesson_plans_read():student_table = dynamodb.Table("Lesson_Plans")items = student_table.scan()['Items']return jsonify(items)def random_answers(answers):shuffle(answers)return answers@app.route("/recommendations/<uuid>")def get_recommendation(uuid):student_info_table = dynamodb.Table('Students')lesson_plans_table = dynamodb.Table('Lesson_Plans')student = get_students(uuid)tek = student.get("struggleTeks")[0]lesson_plans = lesson_plans_table.scan( Select='ALL_ATTRIBUTES', FilterExpression='tek = :s', ExpressionAttributeValues={ ":s": tek })#print(lesson_plans)return jsonify({"student": student, "lesson_plans": lesson_plans.get("Items")})if __name__ == "__main__":app.run(host="0.0.0.0", debug=True)