Elias Haroun
Published © MIT

Mathy: The math teacher

Alexa will be the maths tutor for students of all ages. This skill will help students do all math operations from simple to complex math.

BeginnerWork in progress3 hours370
Mathy: The math teacher

Things used in this project

Story

Read more

Schematics

System diagram

Code

Alexa Skill - AWS Lambda

Python
import urllib
import urllib2
import re
import json

def lambda_handler(event, context):
    
    if (event['session']['application']['applicationId'] != "amzn1.ask.skill.dae3422d-d32d-xxxx-xxxx-e2dc1986608e"):
        raise ValueError("Invalid Application ID")
    
    url = 'http://api.wolframalpha.com/v2/query'
    
    values = {'appid' : 'XXXXXX-XXXXXXXXXX',
              'input' : event['request']['intent']['slots']['Problem']['value']}
    
    data = urllib.urlencode(values)
    req = urllib2.Request(url, data)
    response = urllib2.urlopen(req)
    response = response.read()
    response = str(re.findall(r'<plaintext>(.*)?</plaintext>', response))
    
    session_attributes = {}
    card_title = "Alexa My Math Teacher"
    speech_output = "The answer is " + response
    reprompt_text = ""
    should_end_session = True
    
    return build_response(session_attributes, build_speechlet_response(
        card_title, speech_output, reprompt_text, should_end_session)) 
    
def build_speechlet_response(title, output, reprompt_text, should_end_session):
    return {
        "outputSpeech": {
            "type": "PlainText",
            "text": output
        },
        "card": {
            "type": "Simple",
            "title": title,
            "content": output
        },
        "reprompt": {
            "outputSpeech": {
                "type": "PlainText",
                "text": reprompt_text
            }
        },
        "shouldEndSession": should_end_session
    }

def build_response(session_attributes, speechlet_response):
    return {
        "version": "1.0",
        "sessionAttributes": session_attributes,
        "response": speechlet_response
    }

Credits

Elias Haroun

Elias Haroun

1 project • 1 follower
Computer science student, fascinated by AI, ML, and NLP

Comments