Python - Saving Data outside of program [closed]

Answer 1

The shelve module, as suggested by jabaldonedo, is a drop-in replacement for dictionaries. However, when your values are all strings, even shelve is overkill; you can just use dbm.

Either way, you only need to change one line:

d = {} # in-memory, non-persistent dict
d = shelve.open('passwd.db', 'c') # persistent dict that can store anything
d = dbm.open('passwd.db', 'c') # persistent dict that only stores strings

The advantage of dbm is that you can use other tools to read (and edit) the database. For example, if you do this:

d['abc'] = 'def'

With dbm, the database will hold the string 'def'. With shelve, it will hold something like '\x80\x03X\x03\x00\x00\x00defq\x00.'.

Answer 2

Learn how to read and write Files in python, and just store the username and password in a text file.

Answer 3

There are many option for persisting data, one easy way is using shelve

You can save data using:

>>> import shelve
>>> data = {'foo':'foo value'}
>>> d = shelve.open('myfile.db')
>>> d['data'] = data
>>> d.close() 

Then you can recover your data easily:

>>> import shelve
>>> d = shelve.open('myfile.db')
>>> data = d['data']
>>> d.close() 

Other options are using files, CPickle databases like SQLite, MySQL, etc

Answer 4

Depending on your needs, you can either save the information to a text file or use a database. Saving to a text file doesn't require any encoding, however two popular formats/libraries for python are json and pickle. If you want to use a database instead I would recommend looking at either mysql or sqlite.

Answer 5

There are many options. You can start with learning how native Python's input and output works.

Then you could try sqlite.

And finally use a proper database (MySQL, PostgreSQL, MongoDB, etc.).