Insert binary file in SQLite database with Python

Question

I\'m trying to write a simple Python script that inserts .odt documents into an SQLite database. Here is what I have done so far, but it doesn\'t seem to work:

Answer 1

Not sure what is that sqlite.Binary you're using, but, anyway, here's a working example:

import sqlite3

# let's just make an arbitrary binary file...
with open('/tmp/abin', 'wb') as f:
  f.write(''.join(chr(i) for i in range(55)))
# ...and read it back into a blob
with open('/tmp/abin', 'rb') as f:
  ablob = f.read()

# OK, now for the DB part: we make it...:
db = sqlite3.connect('/tmp/thedb')
db.execute('CREATE TABLE t (thebin BLOB)')
db.execute('INSERT INTO t VALUES(?)', [buffer(ablob)])
db.commit()
db.close()

# ...and read it back:
db = sqlite3.connect('/tmp/thedb')
row = db.execute('SELECT * FROM t').fetchone()
print repr(str(row[0]))

When run with Python 2.6, this code shows, as expected and desired: '\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !"#$%&\'()*+,-./0123456'

Note the need to use buffer to insert the blob, and str to read it back as a string (since it uses the buffer type as a result as well) -- if you're just going to write it to disk the latter passage would not be needed (since the write method of files does accept buffer objects just as well as it accepts strings).