Guard missing events in WorldRecords lookup (print N/A instead of KeyError)

[AAdewunmi]

Hi Paul,

while working through WorldRecords.ipynb (Chapter 9), I ran into a KeyError when an event wasn’t present for every course. The lookup is built from the webapp filename, but not all course tables contain every event, so records[course][lookup] failed.

I’ve updated the loop to guard missing events and print N/A instead of raising:

for course in records.keys():
    if lookup in records[course]:
        print(records[course][lookup])
    else:
        print("N/A")

This keeps the notebook running smoothly while still showing which courses don’t have a record for the requested event.

Happy to open a PR if that’s helpful.

Regards

Adrian

[headfirstpython]

Thanks for this.

I'm hoping to get some time soon to update the book's GitHUB code with this and other recent code updates/fixes. With any luck this will happen tomorrow.

Regards.

--Paul.