PSET9 finance 'buy handles valid purchase error, expected to find "112.00" in page, but it wasn't found'

Question

I'm having issues figuring out why i'm running into this error. I've tried looking online and seeing what answers I could find but I'm stuck. Any help would be greatly appreciated.

Error is: :( buy handles valid purchase expected to find "112.00" in page, but it wasn't found

Code:

@app.route("/buy", methods=["GET", "POST"])
@login_required
def buy():
    """Buy shares of stock"""
    if request.method == "POST":
        symbol = request.form.get("symbol").upper()
        item = lookup(symbol)

        if not symbol:
            return apology("Please enter a symbol")
        elif not item:
            return apology("Invalid symbol")

        try:
            shares = int(request.form.get("shares"))
        except:
            return apology("Shares must be an integer")

        if shares <= 0:
            return apology("Shares must be a positive integer")

        user_id = session["user_id"]
        cash = db.execute("SELECT cash FROM users WHERE id = ?", user_id)[0]["cash"]

        item_price = item["price"]
        total_price = item_price * shares

        if cash < total_price:
            return apology("not enough cash")
        else:
            date = datetime.datetime.now()

            db.execute("UPDATE users SET cash = ? WHERE id = ?", cash - total_price, user_id)
            db.execute("INSERT INTO transactions (user_id, shares, price, symbol, date) VALUES (?, ?, ?, ?, ?)", user_id, shares, item_price, symbol, date)

        return redirect("/")

    else:
        return render_template("buy.html")

Index HTML:

{% extends "layout.html" %}

{% block title %}
    Portfolio
{% endblock %}

{% block main %}
<table class="table">
    <thead>
      <tr>
        <th scope="col">Symbols</th>
        <th scope="col">Shares</th>
        <th scope="col">Price</th>
        <th scope="col">TOTAL</th>
      </tr>
    </thead>
    <tbody>
        {% for row in database %}
      <tr>
        <td>{{ row["symbol"] }}</td>
        <td>{{ row["shares"] }}</td>
        <td>{{ row["price"] | usd() }}</td>
      </tr>
      {% endfor %}
    </tbody>
    <tfoot>
        <tr>
            <td></td>
            <td></td>
            <th scope="1">Cash</th>
            <th scope="1">{{ cash | usd() }}</th>
        </tr>
    </tfoot>
  </table>
{% endblock %}

Buy HTML:

{% extends "layout.html" %}

{% block title %}
    Buy
{% endblock %}

{% block main %}
    <h1>Buy</h1>
    <form action="/buy" method="post">
        <div class="mb-3">
            <input autocomplete="off" autofocus class="form-control mx-auto w-auto" name="symbol" placeholder="Symbol" type="text">
        </div>
        <div class="mb-3">
            <input autocomplete="off" autofocus class="form-control mx-auto w-auto" name="shares" placeholder="Shares" type="text">
        </div>
        <button class="btn btn-primary" type="submit">Buy</button>
    </form>
{% endblock %}

Answer 1

I have answer and I was going to paste just a link, but stack overflow is not allowing me to paste link or post answer if my message is not at least 30 characters. That is why you can see this message. )

Answer:

https://stackoverflow.com/a/77706367/20806031