Exercise: Dictionary: Errors?

In the interactive interpreter, create a dictionary like so:

>>> d = {
...     'one': 1,
...     'two': 2,
... }
>>> d['one']
1

What happens if you access a non-existent key?

>>> d['three']

Dependencies

cluster_python Python Programming cluster_python_basics Python: The Language Fundamentals cluster_python_exercises Exercises cluster_python_exercises_legacy Exercises (Legacy) python_basics_python_0110_blahblah Blahblah python_basics_python_0120_helloworld Hello World python_basics_python_0120_helloworld->python_basics_python_0110_blahblah python_basics_python_0150_datatypes_overview_compound Compound Datatypes python_basics_python_0150_datatypes_overview Datatypes python_basics_python_0150_datatypes_overview_compound->python_basics_python_0150_datatypes_overview python_basics_python_0140_variables Variables python_basics_python_0130_syntax_etc Syntax etc. python_basics_python_0140_variables->python_basics_python_0130_syntax_etc python_basics_python_0150_datatypes_overview->python_basics_python_0140_variables python_basics_python_0130_syntax_etc->python_basics_python_0120_helloworld python_exercises_legacy_dict_keyerror Exercise: Dictionary: Errors? python_exercises_legacy_dict_keyerror->python_basics_python_0150_datatypes_overview_compound