Sorting a Dictionary of Objects by Nested Attributes in Python - implementing Lambda Function
I'm updating my dependencies and I'm dealing with I'm integrating two systems and I've been banging my head against this for hours. I'm trying to sort a list of dictionaries based on a nested attribute, but I'm running into some issues with my lambda function. I have a list of dictionaries representing employees, where each dictionary contains an 'info' key which itself is a dictionary with 'name' and 'age' as keys. Here's what my data looks like: ```python employees = [ {'info': {'name': 'Alice', 'age': 30}}, {'info': {'name': 'Bob', 'age': 25}}, {'info': {'name': 'Charlie', 'age': 35}}, ] ``` I want to sort this list by the 'age' attribute inside the nested 'info' dictionary. I attempted to use the `sorted()` function with a lambda function as the key: ```python sorted_employees = sorted(employees, key=lambda x: x['info']['age']) ``` However, I'm getting a `KeyError` when trying to access the 'info' key in some dictionaries because not all of them are formatted the same. Some dictionaries might be missing the 'info' key entirely, which is causing the behavior. The full behavior message I'm getting is: ``` KeyError: 'info' ``` I've tried adding a try-except block around my sort function, but that doesn't seem to solve the question satisfactorily because I want to sort only those entries where 'info' exists. Is there a more elegant way to handle this case? Should I filter the list before sorting, or is there a way to modify my lambda function to safely handle missing keys? Any advice or best practices for this scenario would be appreciated! This is part of a larger CLI tool I'm building. How would you solve this? My team is using Python for this desktop app. I'm using Python latest in this project. Has anyone else encountered this? My team is using Python for this service. My development environment is CentOS. Any ideas how to fix this?