Build a Medical Data Validator - Step 44

Python
1

Tell us what’s happening:

hi everyone. There is one last step left, i don’t understand what the mistake is. Thank you all in advance for your help

Your code so far

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

        invalid_records = find_invalid_records(**dictionary)

# User Editable Region

    for index, key  in enumerate(invalid_records):
       print(f'Unexpected format {key}: {invalid_records[key]} at position {index}.')
       is_invalid = True


# User Editable Region

    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 44
https://www.freecodecamp.org/learn/python-v9/workshop-medical-data-validator/step-44**strong text**

2

Welcome back to the forum @19Ahmed83

Can you describe what the problem is in your own words?

Happy coding

3

Yes, of course. The problem is in the the last for loop.
You should print.

Unexpected format '<key>: <val>' at position <index>.

(where

<key>

,

<val>

, and

<index>

should be replaced by the current key, value and index) inside your

for

loop. 3. You should set

is_invalid

to

True

inside your new

for

loop.

4

for index, key in enumerate(invalid_records):
print(f’Unexpected format {key}: {invalid_records[key]} at position {index}.')
is_invalid = True

5

What’s in the invalid_records variable?

Or, What is the relationship between the index you are enumerating there, and the “position” of a record?

If you test your app by making some records invalid, does the printed “position” make sense?

6

for index, record in enumerate(invalid_records):
for key, value in dictionary.items():
print(f"Unexpected format ‘{key}: {value}’ at position {index}.")
is_invalid = True
I don’t quite understand

7

Look at the bigger context of your code

See the for loop at the beginning?

If you reset the step, and click in the editor, your cursor will be indented 2 levels, so it is inside that first for loop, not after it. It should be indented to be aligned with the if statements.

Right after the invalid_records variable, create a for loop

This means it should be indented aligned with the invalid_records variable. Examine the variables in the top for loop

for index, dictionary in enumerate(data):
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