Python How to connect to sql server

import pyodbc

def connect_to_sql():
    """
    Connect to SQL Server.

    Returns
    -------
    pyodbc.Connection
        Connection to SQL Server.
    """

    #connect to SQL Server
    conn = pyodbc.connect('Driver={SQL Server};'
                          'Server=localhost;'
                          'Database=test;'
                          'Trusted_Connection=yes;')

    #return the connection
    return conn

#example
conn = connect_to_sql()
#output
print(conn)  #<pyodbc.Connection object at 0x7f8b8d9c0e10>