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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

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}