"TypeError: filter_by()" error returned in flask when I am trying to use filter_by() - forms

Question

I am trying to implement filter_by() function of flask. My issue is, when I am trying to use filter for argument, I got the error of:
TypeError: filter_by() takes 1 positional argument but 2 were given
I also attached my code to the question.
Main application source code:
def login():
error = None
form = LoginForm(request.form)
if request.method == 'POST':
user = User.query.filter_by(Email=request.form['email']).first()
password = User.query.filter_by(Password=request.form['password']).first()
group = User.query.filter_by(user).first()
if user is None or password is None :
session['logged_in'] = False
flash('Please write your username password')
else:
session['logged_in'] = True
flash('You were logged in')
if group=="viewer":
return redirect(url_for('viewer'))
elif group=="admin":
return redirect(url_for('admin'))
elif group=="employee":
return redirect(url_for('employee'))
return render_template('login.html', form=form)
The model which I used for my app :
class User(db.Model):
__tablename__ = 'users'
Id = db.Column(db.Integer, primary_key=True)
Name = db.Column(db.String(64), index=True, unique=True)
Email = db.Column(db.String(64), index=True, unique=True)
Password = db.Column(db.String(128), index=True )
Group = db.Column(db.String(30))
Tickets = db.relationship('Request', backref='author', lazy='dynamic')
Login page source code:
<div class="innter-form">
<form class="sa-innate-form" method="post">
{{ form.csrf_token }}
<label>Email Address</label>
<input type="text" name="email" value="{{ request.form.email }}">
<label>Password</label>
<input type="password" name="password" value="{{ request.form.password }}">
<button type="submit" value="submit">Sign In</button>
Forgot Password?
</form>
</div>

Answer 1

filter_by is used for queries on the column names
...
# this returns a user object
user = User.query.filter_by(Email=request.form['email']).first()
# you should query based on the Id of User
group = User.query.filter_by(Id=user.Id).first()

Answer 2

Probably the problem is in the line
group = User.query.filter_by(user).first()
Besides the fact that filter_by accepts only keyword arguments - and you supplied only one positional argument to it, I am guessing you should use something different than User here (maybe Group, not sure since I don't know what models you have defined).
The line I mentioned should look something like
group = Group.query.filter_by(user=user).first()

Answer 3

Thank you all for response:
The eror was in group part as mention in above:
group = User.query.filter_by(user).first()
Instead of this code should be:
group = User.query.filter_by(Email=user).first()