StripeObject.__repr__ causes a TypeError in Python 3

[russelldavis]

Reproduced as follows:

import stripe
stripe.api_key = "<your api key>"
print(repr(stripe.Charge.all()))

Resulting in:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.3/site-packages/stripe/resource.py", line 138, in __repr__
    ' '.join(ident_parts), hex(id(self)), str(self))
TypeError: sequence item 1: expected str instance, bytes found

[defrex]

I can add that this bug has some negative side effects. Take stripe/resource.py line 275:

util.logger.debug("Trying to save already saved object %r", self)

This will throw a confusing TypeError instead of logging.