Frequent Host-Guest Pairs

PandasEasyJunior level~10 min

Problem

You are given a DataFrame `recording_session` with columns `host_id`, `guest_id`, and `session_no`. Each row records one recording session between a host and a guest.

Return every `(host_id, guest_id)` pair that appears in **three or more** sessions. Output the two columns `host_id` and `guest_id`.

Input data

Example rows — the live problem includes the full dataset.

recording_session

host_id	guest_id	session_no
1	1	0
1	1	1
1	1	2
1	2	3
1	2	4

Expected output

Your answer should return 1 row with the columns host_id, guest_id.

Starter code (Pandas (Python))

import pandas as pd

def frequent_host_guest_pairs(recording_session) -> pd.DataFrame:
    # Your code here
    return recording_session

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