I am working on a simple web application with flask. I currently store the user’s logo in a database. I also have an edit form where users can update that logo and other data the problem is that when I try to update the file. My program just keeps showing loads of binary messages and I am unable to stop the problem my flask app keeps loading continuously until I quit the terminal completely. How can I update a user logo, please?

Here is what the binary messages look like:

The binary messages loads continually without stopping

Below are my files:

app.py

@app.route("/update-account", methods=["POST"])
def update_user_account():
    username = request.values["user"]
    user = User.query.filter_by(username=username).first()
    logo = Logo.query.filter_by(username=username).first()

    new_username = request.form.get("username")
    new_password = request.form.get("password")
    new_logo= request.files["logo"]

    if new_password != user.password:
        ...

    if new_username != user.username:
        ...

    if new_logo.filename != "":
        logo.filename = new_logo.filename
        logo.data = new_logo.read() # <----- where it takes forever
        logo.users = user
        user.logo= logo
        db.session.add(logo)

    return render_template(
                "manage_profile.html",
                user=user,
                logo=logo,
           )

logo.py

class Logo(db.Model):
    __tablename__ = "logo"
    id = db.Column(db.Integer, primary_key=True)
    filename = db.Column(db.String(100))
    data = db.Column(db.LargeBinary)
    username = db.Column(db.String(100), db.ForeignKey("users.username"))

    users = db.relationship("User", back_populates="logo", uselist=False)

    def __repr__(self) -> str:
        return "<Logo (filename="{}", data={})>".format(self.filename, self.data)

users.py

class User(UserMixin, db.Model):
    __tablename__ = "users"

    username = db.Column(db.String(100), primary_key=True)
    password = db.Column(
        db.String(200), primary_key=False, unique=False, nullable=False
    )
    logo = db.relationship("Logo", back_populates="users", uselist=False)

jinja template

<div class="col-md-12">
  <label class="labels">Change Logo</label>
  <input 
     type="file" 
     id="logo" 
     name="logo" 
     accept="image/*" 
     title="Only images are allowed" 
     class="form-control" 
     value={{logo.filename}}>
 </div>