As & With bug

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-64-9dfdda7a59fb> in <module>
      1 # Check your answer
----> 2 q_3.check()

/opt/conda/lib/python3.6/site-packages/learntools/core/problem_view.py in wrapped(self, *args, **kwargs)
     22     def wrapped(self, *args, **kwargs):
     23         self.interactions[method.__name__] += 1
---> 24         return method(self, *args, **kwargs)
     25     return wrapped
     26

/opt/conda/lib/python3.6/site-packages/learntools/core/problem_view.py in wrapped(*args, **kwargs)
     13     @functools.wraps(fn)
     14     def wrapped(*args, **kwargs):
---> 15         res = fn(*args, **kwargs)
     16         display(res)
     17         # Don't propagate the return to avoid double printing.

/opt/conda/lib/python3.6/site-packages/learntools/core/problem_view.py in check(self)
     91                 args = ()
     92             self.problem.check_whether_attempted(*args)
---> 93             self.problem.check(*args)
     94         except NotAttempted as e:
     95             self._track_check(tracking.OutcomeType.UNATTEMPTED)

/opt/conda/lib/python3.6/site-packages/learntools/sql/ex5.py in check(self, results)
    100         year_to_check = list(rides_per_year_answer["year"])[0]
    101         correct_number = int(rides_per_year_answer.loc[rides_per_year_answer["year"]==year_to_check]["num_trips"][0])
--> 102         submitted_number = int(results.loc[results["year"]==year_to_check]["num_trips"][0])
    103         assert (correct_number == submitted_number), ("The results don't look right. Try again.")
    104

/opt/conda/lib/python3.6/site-packages/pandas/core/series.py in __getitem__(self, key)
    765         key = com._apply_if_callable(key, self)
    766         try:
--> 767             result = self.index.get_value(self, key)
    768
    769             if not is_scalar(result):

/opt/conda/lib/python3.6/site-packages/pandas/core/indexes/base.py in get_value(self, series, key)
   3116         try:
   3117             return self._engine.get_value(s, k,
-> 3118                                           tz=getattr(series.dtype, 'tz', None))
   3119         except KeyError as e1:
   3120             if len(self) > 0 and self.inferred_type in ['integer', 'boolean']:

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_value()

pandas/_libs/index.pyx in pandas._libs.index.IndexEngine.get_loc()

pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()

pandas/_libs/hashtable_class_helper.pxi in pandas._libs.hashtable.Int64HashTable.get_item()

KeyError: 0