Question

A security engineer wrote a Python script to retrieve blocked-domain data from a Cisco Umbrella reporting API. The script contains the following snippet:

resp = requests.get(url, headers=headers)
    data = resp.json()
    for item in data['data']:
        print(item['domain'])

The script runs without a connection error, but raises a KeyError: 'data' on the line with the for loop. What is the most likely cause?

Accepted Answer

The API response body does not contain a top-level key named 'data', so the parsed JSON structure does not match what the script expects

Answer

The requests library cannot parse JSON responses and requires the json.loads() function instead

Answer

The authentication token expired, which always produces a KeyError in Python

Answer

The url variable points to an HTTPS endpoint, which requests cannot access without disabling certificate verification