Insert numpy array into a sqlite3 database

numpy-sqlite3.py

import sqlite3
import numpy

# Array of 4 columns and 100 rows                                                                                                                                              
data = numpy.random.rand(100, 4)

# Create a sample database                                                                                                                                                     
conn = sqlite3.connect('/tmp/sample.db')
cursor = conn.cursor()

# Create a new table with four columns                                                                                                                                         
cursor.execute('''create table data (field1 real, field2 real, field3 real, field4 real)''')
conn.commit()

# Insert the data array into the 'data' table                                                                                                                                  
cursor.executemany('''insert into data values (?, ?, ?, ?)''', map(tuple, data.tolist()))
conn.commit()
cursor.close()
conn.close()

Bad idea, you should consider using register_adapter and register_converter instead from the sqlite3 module