TypeError for format string in "Is it a bird?" notebook

[michaelbarton]

I'm following the lesson 1 notebook Is it a bird? Creating a model from your own data linked to in the resources page. I've copied this in kaggle and ran it myself. The notebook works and seems to finish, however I get quite a lot of error messages about formatting strings. This seems to be an issue with the __repr__(x:Image.Image) where there's not an argument for 0x%X. I assume this should be supplied or removed from the format string.

The output is:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/opt/conda/lib/python3.7/site-packages/IPython/core/formatters.py in __call__(self, obj)
    700                 type_pprinters=self.type_printers,
    701                 deferred_pprinters=self.deferred_printers)
--> 702             printer.pretty(obj)
    703             printer.flush()
    704             return stream.getvalue()

/opt/conda/lib/python3.7/site-packages/IPython/lib/pretty.py in pretty(self, obj)
    392                         if cls is not object \
    393                                 and callable(cls.__dict__.get('__repr__')):
--> 394                             return _repr_pprint(obj, self, cycle)
    395 
    396             return _default_pprint(obj, self, cycle)

/opt/conda/lib/python3.7/site-packages/IPython/lib/pretty.py in _repr_pprint(obj, p, cycle)
    698     """A pprint that just redirects to the normal repr function."""
    699     # Find newlines and replace them with p.break_()
--> 700     output = repr(obj)
    701     lines = output.splitlines()
    702     with p.group():

/opt/conda/lib/python3.7/site-packages/fastai/vision/core.py in __repr__(x)
     26 @patch
     27 def __repr__(x:Image.Image):
---> 28     return "<%s.%s image mode=%s size=%dx%d at 0x%X>" % (x.__class__.__module__, x.__class__.__name__, x.mode, x.size[0], x.size[1])
     29 
     30 # %% ../nbs/07_vision.core.ipynb 11

TypeError: not enough arguments for format string