How to take input from the user and store it in an external file?

Question

I am trying to create a quiz which is supposed to have a registration feature that stores the user input into an external file. I just need help on how to store the user input.

This is my code:

def register():
    name = input("Please enter your full name: ")
    age = input("Please enter your age: ")
    year = input("Please enter your year group: ")
    username = (name[:3] + age)
    print("Your username is " + username)
    password = input("Please enter a password: ")

An online tutorial like this [W3Schools](https://www.w3schools.com/python/python_file_write.asp) could help — Anh Do Hoang, Aug 27 '19 at 16:35

score 1 · Accepted Answer · answered Aug 27 '19 at 17:09

Programming can be confusing, all you need is to be organized.

Here is an algorithm for you.

Create a file
Write data to the file
Close the file

And the code:

#Create a new function
def register():
    #Open a file to store the input
    with open("credentials.txt", 'a') as out:
        #Ask for the data
        name = input("Please enter your full name: ")
        age = input("Please enter your age: ")
        year = input("Please enter your year group: ")
        username = (name[:3] + age)
        print("Your username is " + username)
        #Save to the file
        out.write(username + "\n")
        password = input("Please enter a password: ")
        out.write(password  + "\n")
        print("Login created!")
        #Close the file
        out.close()    

#Entry point of your program
register()

Thank you so much! This helped a lot. I also need to create a log in feature. I've already asked the user for input but I need it to look for their details in the text file and if it's there, they will be logged in and be moved on to the quiz. I just need help on this then I think I'll ready to go. — , Aug 27 '19 at 17:36

score 0 · Answer 2 · answered Aug 27 '19 at 17:09

0

You can just write those variables to the file like this :

filehandle = open("filename", "a") filehandle.write(name + "\t" + age + "\t" + age + "\t" + year +"\t" + password + "\t") filehandle.close()

answered Aug 27 '19 at 17:09

Rohit Nawale

3
1
4

score 0 · Answer 3 · answered Aug 27 '19 at 18:21

There are multiple ways of doing this and I'll mention them all below:

You can save information of all the user by using pickle where it creates a dictionary and each user can be a key and it's information as a list of values. You can also load that information back later on. Here's a link to understand more how pickle works. Check out the answers of various user: How can I use pickle to save a dict?
Another way is to save it in a text file as mentioned by sirandy.
Third way is to create a pandas dataframe and save information of each user as a new row. I am assuming you are aware of pandas dataframes. Here's a link again to explain how to do this: Writing a pandas DataFrame to CSV file

How to take input from the user and store it in an external file?

3 Answers3