save input from user in a python program

Question

I am writing a program in Python where a user can input information that is saved - even if the program is terminated. How do I implement this?

Look up pickle. It allows you to easily save ('serialize') data of any Python type and later reimport those. — roadrunner66
– roadrunner66, Commented Mar 9, 2016 at 23:06
Yup, this is possible :-) You should probably edit your question to include your code; that way more specific advice can be given. In general, though, I would say using the json module works quite well for many purposes. — Martin Tournoij
– Martin Tournoij, Commented Mar 9, 2016 at 23:07
You can write it to a file, use a database etc etc. There are literally tons of storage options. Just search, pick one and go ahead. — Hossain Muctadir
– Hossain Muctadir, Commented Mar 9, 2016 at 23:08
@roadrunner66 pickle has security issues (see here) and I would not advice it unless I'm really sure what it's being used for. — Martin Tournoij
– Martin Tournoij, Commented Mar 9, 2016 at 23:09
You should refer to this to improve your question. That said, what you're actually looking for is a signal handler: stackoverflow.com/questions/1112343/… — Nathaniel Ford
– Nathaniel Ford, Commented Mar 10, 2016 at 0:24

Pierre Cordier · Accepted Answer · 2016-03-10 00:53:01Z

1

Assuming you want the user to input a string of data, you can use raw_input() to get it, and then send it to a file using pickle library, as mentioned in comments above.

To use pickle, you should before open a file in writing mode and then use this file to dump into it your object containing the string.

A secure way to open a file is to use a with statement, it will be closed at the end of the statement.

import pickle

myData = raw_input('What is your name ? ')

with open("name.p", "wb" ) as myFile:
    pickle.dump(myData, myFile)

Later, you can get back the object by opening the pickle file in read mode and store its content in a variable.

import pickle

with open("name.p", "rb" ) as myFile:
    myData = pickle.load(myFile)

answered Mar 10, 2016 at 0:53

Pierre Cordier

5043 silver badges17 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

save input from user in a python program

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related