builtin.open error with Python 3.3

[provegard]

The following code gives an error with Python 3.3:

def set_cache(base, gist_id, body, filename=None):
    with open(cache_filename(base, gist_id, filename), 'w') as f:
        f.write(body)

Error: "TypeError: must be str, not bytes"

The call to open needs to specify 'wb'.

[streeter]

Cool, I should have fixed this with the just released version 0.3.0. Let me know if you see that it doesn't work for you.