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Python: Create a backup of a SQLite database

Python SQLite Database: Exercise-13 with Solution

Write a Python program to create a backup of a SQLite database.

Sample Solution:

Python Code :

import sqlite3
import io
conn = sqlite3.connect('mydatabase.db')
with io.open('clientes_dump.sql', 'w') as f:
   for linha in conn.iterdump():
       f.write('%s\n' % linha)
print('Backup performed successfully.')
print('Saved as mydatabase_dump.sql')
conn.close()

Sample Output:

Backup performed successfully.
Saved as mydatabase_dump.sql

Python Code Editor:

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Previous: Write a Python program to alter a given SQLite table.

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Python: Tips of the Day

How to make a chain of function decorators?

from functools import wraps

def makebold(fn):
    @wraps(fn)
    def wrapped(*args, **kwargs):
        return "<b>" + fn(*args, **kwargs) + "</b>"
    return wrapped

def makeitalic(fn):
    @wraps(fn)
    def wrapped(*args, **kwargs):
        return "<i>" + fn(*args, **kwargs) + "</i>"
    return wrapped

@makebold
@makeitalic
def hello():
    return "hello world"

@makebold
@makeitalic
def log(s):
    return s

print hello()        # returns "<b><i>hello world</i></b>"
print hello.__name__ # with functools.wraps() this returns "hello"
print log('hello')   # returns "<b><i>hello</i></b>"

Ref: https://bit.ly/3cVz5iw