import sqlite3

# Create a sample database
conn = sqlite3.connect("test_bytes.db")
cur = conn.cursor()
cur.execute("CREATE TABLE test (test TEXT)")
cur.execute("INSERT INTO test VALUES('Test1')")
conn.commit()
conn.close()

# Connect directly to the file again
conn = sqlite3.connect("test_bytes.db")
cur = conn.cursor()
cur.execute("SELECT * FROM test")
print(cur.fetchone()[0])

# Open the database as stream:
with open("test_bytes.db", "rb") as f:
    print(type(f))
    database = f.read()
# 'database' is already bytes, but we print its type just in case
print(type(database))
# We attempt another connection:
try:
    conn = sqlite3.connect(database)
except Exception as e:
    print(e)
    # For stopping the execution flow
    input()