Python etc / Column in tracebacks

Column in tracebacks

PEP 657 (landed into Python 3.11) enhanced tracebacks so that they now include quite a precise location of where the error occurred:

Traceback (most recent call last):
  File "", line 24, in add_counts
    return 25 + query_user(user1) + query_user(user2)
  File "", line 32, in query_user
    return 1 + query_count(db, response['a']['b']['c']['user'], retry=True)
TypeError: 'NoneType' object is not subscriptable

It shows not only where the error occurred for each frame, but also which code was executed. Beautiful!