Pandas regex users.email.str.match('xxxx')
Code
# Code
```pythondata []
import pandas as pd

def find_valid_emails(users: pd.DataFrame) -> pd.DataFrame:
    df = users[users.email.str.match('\w+@[a-zA-Z]+\.com')]
    return df.sort_values(by = 'user_id')
```
['Pandas']