What does |= (pipe equal) sign do in python?
<p>I saw a piece of code in a project where following is written:</p>
<pre><code> move = Move.create({
    'name': repair.name,
    'product_id': repair.product_id.id,
    'product_uom': repair.product_uom.id or repair.product_id.uom_id.id,
    'product_uom_qty': repair.product_qty,
    'partner_id': repair.address_id.id,
    'location_id': repair.location_id.id,
    'location_dest_id': repair.location_dest_id.id,
    'restrict_lot_id': repair.lot_id.id,
})
moves |= move
moves.action_done()
</code></pre>
<p>What does the <code>|=</code> meaning here?</p>