error passing variables python web application with flask

Question

I am new in programming and I know that are useful things out there like wtforms for this, but I want to practice a little before dive into it.

The idea is to create a web app that register the user, and I think it is better to keep this logic apart from the application code.

The problem is that I have this error message: TypeError: register() takes 0 positional arguments but 3 were given I am confused because the function declaration has positional arguments, the code I wrote is:

app code:

@app.route("/register", methods=["POST", "GET"])
def register():
    if request.method =="POST":
        if not user_name or not password or not pass_confirm:
            return ("all fields are mandatory, also consider to active javaScript for a better expirience",404)
    user_name = request.form.get("user_name")
    password = request.form.get("password")
    pass_confirm = request.form.get("user_name")
    register(user_name, password, pass_confirm)
    return render_template("/register.html")```

in another file:

def register(user_name, password, pass_confirm):
    if password != pass_confirm:
        return("Password and password confirmation must match")

The problem is the other register function doesn't have positional arguments. Maybe rename the one in the other file to register_logic or something. — mechanical_meat
– mechanical_meat, Commented May 17, 2020 at 18:01
Python does not support function overloading. Consider giving one of the two functions a different name. — ljleb
– ljleb, Commented May 17, 2020 at 18:02
You are calling same function inside 'register' function (recursion). Make sure you are calling correct register, you need to import it if it is from another file. Example: import AnotherFile AnotherFile.register(user_name, password, pass_confirm) — Mate Ajdukovic
– Mate Ajdukovic, Commented May 17, 2020 at 18:04
Thank you guys! All relevant points. I changed the called function name. =D tnx a lot! — Cerezo
– Cerezo, Commented May 20, 2020 at 0:44

Wahib Mzali · Accepted Answer · 2020-05-17 18:05:34Z

1

You used the function register with no arguments ,so try to rename it.

the code will be

@app.route("/register", methods=["POST", "GET"])

def reg():

if request.method =="POST":

    if not user_name or not password or not pass_confirm:

return ("all fields are mandatory, also consider to active javaScript for a better expirience",404)

user_name = request.form.get("user_name")

password = request.form.get("password")

pass_confirm = request.form.get("user_name")

register(user_name, password, pass_confirm)

return render_template("/register.html")```

in another file:


    if password != pass_confirm:

        return("Password and password confirmation must match")```

answered May 17, 2020 at 18:05

Wahib Mzali

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1 Comment

Cerezo Over a year ago

Ow, I see..I used the same name for both functions. This solved the problem! Thank you! =D

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