Cannot concatenate 'str' and 'int' objects. Python : <pre><code>if int(gtin) == barcode[1]:
    print "You have ordered", item[1]
    **quantity1 = raw_input("Please select a quantity of 100mm bolts")
    quantitybolt = int(quantity1)
    quantity1 += quantitybolt**
</code></pre>

<p>TypeError:cannot concatenate 'str' and 'int' objects. Python</p>

<p>Please help :) </p>
