app.py

from flask import Flask, render_template, request
import requests
import jsonpath_ng
import json

app = Flask(__name__)


@app.route('/')
def index():
    return render_template("base.html")


@app.route('/', methods=['POST'])
def my_form_post():
    text = request.form['text']
    if text != "":
        return defn(text)
    else:
        return render_template("base.html")


def defn(name):
    url = "https://api.dictionaryapi.dev/api/v2/entries/en_US/{}".format(name)

    response = requests.get(url)

    entries = response.json()

    try:
        query_word = jsonpath_ng.parse('[0].word[*]')
        for match in query_word.find(entries):
            word = (json.dumps(match.value)).strip('"')

        query_pronun = jsonpath_ng.parse('[0].phonetics[*].text[*]')
        for match in query_pronun.find(entries):
            pronun = json.loads(json.dumps(match.value))
        query_audio = jsonpath_ng.parse('[0].phonetics[*].audio[*]')
        for match in query_audio.find(entries):
            audio_link = (json.dumps(match.value)).strip('"')

        # part of speech
        pos = []
        # definitions
        defs = []
        # examples
        expl = []
        # synonyms
        syns = []

        for entry in entries:
            for meaning in entry["meanings"]:
                for definition in meaning["definitions"]:
                    pos.append(meaning["partOfSpeech"])
                    defs.append(definition["definition"])
                    if "example" in definition:
                        expl.append(definition["example"])
                    else:
                        expl.append("_")
                    if "synonyms" in definition:
                        syns.append(definition["synonyms"])
                    else:
                        syns.append("_")
        ding = zip(pos, defs, expl, syns)
        # this is to show the play audio button only when a word is present
        aun = None
    except KeyError:
        # render wordnotfound.html if api doesn't return defs
        return render_template("wordnotfound.html"), 404
    return render_template("word.html", name=word, pronun=pronun, audio=audio_link, ding=ding, aun=aun)