Build a Medical Data Validator - Step 13

Python
1

Tell us what’s happening:

Hello,
I added the “” to make it into a string but it doesn’t seem to make it correctly. What did I do wrong?

Your code so far


# User Editable Region

medical_records = "[
    {
        'patient_id': 'P1001',
        'age': 34,
        'gender': 'Female',
        'diagnosis': 'Hypertension',
        'medications': ['Lisinopril'],
        'last_visit_id': 'V2301',
    },
    {
        'patient_id': 'p1002',
        'age': 47,
        'gender': 'male',
        'diagnosis': 'Type 2 Diabetes',
        'medications': ['Metformin', 'Insulin'],
        'last_visit_id': 'v2302',
    },
    {
        'patient_id': 'P1003',
        'age': 29,
        'gender': 'female',
        'diagnosis': 'Asthma',
        'medications': ['Albuterol'],
        'last_visit_id': 'v2303',
    },
    {
        'patient_id': 'p1004',
        'age': 56,
        'gender': 'Male',
        'diagnosis': 'Chronic Back Pain',
        'medications': ['Ibuprofen', 'Physical Therapy'],
        'last_visit_id': 'V2304',
    }
]"

# User Editable Region

def validate(data):
    is_sequence = isinstance(data, (list, tuple))

    if not is_sequence:
        print('Invalid format: expected a list or tuple.')
        return False
        
    is_invalid = False

    for index, dictionary in enumerate(data):
        if not isinstance(dictionary, dict):
            print(f'Invalid format: expected a dictionary at position {index}.')
            is_invalid = True

    if is_invalid:
        return False
    print('Valid format.')
    return True

validate(medical_records)

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Challenge Information:

Build a Medical Data Validator - Step 13

2

This is a multil-ine string.

3

Oh okay thanks! I should have known.

4

I’m stuck as well. I’ve done “validate(str(medical_records))”, which gives the expected error message, but the page still won’t let me progress.

5

I see. Literally go back and redefine it as a string…

6

yes, the medical_records variable needs to have value of a string

7

correct solution

import re

medical_records = [
{
‘patient_id’: ‘P1001’,
‘age’: 34,
‘gender’: ‘Female’,
‘diagnosis’: ‘Hypertension’,
‘medications’: [‘Lisinopril’],
‘last_visit_id’: ‘V2301’,
},
{
‘patient_id’: ‘p1002’,
‘age’: 47,
‘gender’: ‘male’,
‘diagnosis’: ‘Type 2 Diabetes’,
‘medications’: [‘Metformin’, ‘Insulin’],
‘last_visit_id’: ‘v2302’,
},
{
‘patient_id’: ‘P1003’,
‘age’: 29,
‘gender’: ‘female’,
‘diagnosis’: ‘Asthma’,
‘medications’: [‘Albuterol’],
‘last_visit_id’: ‘v2303’,
},
{
‘patient_id’: ‘p1004’,
‘age’: 56,
‘gender’: ‘Male’,
‘diagnosis’: ‘Chronic Back Pain’,
‘medications’: [‘Ibuprofen’, ‘Physical Therapy’],
‘last_visit_id’: ‘V2304’,
}
]

def find_invalid_records(
patient_id, age, gender, diagnosis, medications, last_visit_id
):
constraints = {
‘patient_id’: isinstance(patient_id, str)
and re.fullmatch(‘p\d+’, patient_id, re.IGNORECASE),
‘age’: isinstance(age, int) and age >= 18,
‘gender’: isinstance(gender, str) and gender.lower() in (‘male’, ‘female’),
‘diagnosis’: isinstance(diagnosis, str) or diagnosis is None,
‘medications’: isinstance(medications, list)
and all([isinstance(i, str) for i in medications]),
‘last_visit_id’: isinstance(last_visit_id, str)
and re.fullmatch(‘v\d+’, last_visit_id, re.IGNORECASE)
}
return [key for key, value in constraints.items() if not value]

def validate(data):
is_sequence = isinstance(data, (list, tuple))

if not is_sequence:
    print('Invalid format: expected a list or tuple.')
    return False
    
is_invalid = False
key_set = set(
    ['patient_id', 'age', 'gender', 'diagnosis', 'medications', 'last_visit_id']
)

for index, dictionary in enumerate(data):
    if not isinstance(dictionary, dict):
        print(f'Invalid format: expected a dictionary at position {index}.')
        is_invalid = True
        continue

    if set(dictionary.keys()) != key_set:
        print(
            f'Invalid format: {dictionary} at position {index} has missing and/or invalid keys.'
        )
        is_invalid = True
        continue
validate(medical_records)

    invalid_records = find_invalid_records(**dictionary)
    for key in invalid_records:
        val = dictionary[key]
        print(f"Unexpected format '{key}: {val}' at position {index}.")
        is_invalid = True

if is_invalid:
    return False
print('Valid format.')
return True
validate(medical_records)

The above code worked

8

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