Create dynamic objects python

Question

For training, I want to atumaticly create users in a system using class.

Here is my code:

class CsrUser(object):
    def __init__(self, f_name, l_name, login, role, sex, password ='Hot12345'):
        self.f_name = f_name
        self.l_name = l_name
        self.login = login
        self.role = role
        self.sex = sex
        self.password = password

I want to create dynamic objects of the class from the user input,

#i want to create something like this
def get_users_data():
    new_user = input("Enter the user name")
    ... #get all the data
    new_user = CsrUser(...)

I want the name of the object to be the value that inside new_user

With the name of the object, do you mean the name of the variable referencing the object? — Noctua
– Noctua, Commented Sep 30, 2013 at 15:38
what is in a local variable name ? As long as it is readable you get the desired output ? — karthikr
– karthikr, Commented Sep 30, 2013 at 15:39
I think so, i am kind of new with all the class thing. if i create new = Class(). So i want the new to change to the name that i get from the user. — Or Halimi
– Or Halimi, Commented Sep 30, 2013 at 15:45
@karthikr I don't know how many users will be create so i don't want to hard code 20 Classes names. I am sure i think that way only because my lack of experience — Or Halimi
– Or Halimi, Commented Sep 30, 2013 at 15:47
Any variable name is fine, as long as it refers to the right object you are good to go. Dont worry about changing the object variable name — karthikr
– karthikr, Commented Sep 30, 2013 at 15:48

Tyler · Accepted Answer · 2013-09-30 15:50:59Z

6

I don't think that naming a variable (object in your case) using a variable is a good idea. If you want to keep track of all of your users by name, you should use a dictionary instead:

#make dictionary
user_data = {}

#make a new user object
new_user = CsrUser(...)

#insert your new user object into the dictionary
#use new_user.f_name or new_user.l_name here in place of new_user.name (or combine both)
user_data[new_user.name] = new_user  

#to get a user object out of the dictionary 
a_user = user_data["name_here"]

edited Sep 30, 2013 at 15:50

answered Sep 30, 2013 at 15:45

Tyler

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4 Comments

Or Halimi Over a year ago

I want to create 20 users with my class and track which one is what. This is why i though about making a dynamic name

Tyler Over a year ago

A dictionary is exactly what you should be using. I took a look at your profile and your bio says you're studying python, you should get used to using dictionaries.

Or Halimi Over a year ago

I guess i need to study them more. i just don't fully understand the class concept and how to combine them with dictionary. I will try your solution and to understand your answer and after that i will come back. thanks :-)

Tyler Over a year ago

Putting objects in a dictionary is no different than putting integers or strings in a dictionary. A dictionary works by having key/value pairs. Read more here : tutorialspoint.com/python/python_dictionary.htm

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