Nested Address Lookup

Medium ⏱ 12 min 62% acceptance ★★★★☆ 4.3

Write a function get_city(record) where record is a dict shaped like {"name": ..., "address": {"street": ..., "city": ..., "zip": ...}}. Return the value at record["address"]["city"]. If the "address" key or the "city" key is missing, return "Unknown".

Examples

Example 1

Input

get_city({'name': 'Ravi', 'address': {'city': 'Pune'}})

Output

'Pune'

Explanation

Nested lookup succeeds.

Example 2

Input

get_city({'name': 'Ravi'})

Output

'Unknown'

Explanation

No address key at all.

Constraints

Never raise KeyError even for deeply missing keys.

Topics

Dictionariesnested dicts

Companies

AmazonDeloitte

Hints

Hint 1

Chain `.get()` calls: `record.get("address", {}).get("city", "Unknown")`.

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