def pseudonymize_row(row):
    """
    Replace some identifying information with others:
    - Fake name
    - Birthdate is replaced with the age
    """
    anonymized_row = row.copy()

    # using Faker (https://faker.readthedocs.io/en/master/), we generate fake names
    if anonymized_row['Gender'] == 'Female':
        anonymized_row['Fullname'] = faker.name_female()
    else:
        anonymized_row['Fullname'] = faker.name_male()

    del anonymized_row['Birthdate']
    birthdate = datetime.strptime(row['Birthdate'], '%Y-%m-%d')
    age = today.year - birthdate.year - ((today.month, today.day) < (birthdate.month, birthdate.day))
    anonymized_row['Age'] = age

    return anonymized_row