## Lekcja – wyszukiwanie liniowe

```def search_linear(value, list):

idx = 0
found = False

if list[idx] == value:
found = True
else:
idx += 1

return idx if idx < len(list) else None

list = [1,3,9,2,0,6,4,7,5,3]
idx = search_linear(5, list)
print(idx)

idx = search_linear(15, list)
print(idx)
```

## Rozwiązanie

```tel_list = [
{'number': 123123123, 'name': 'photovoltaic'},
{'number': 789789789, 'name': 'subscription of magazines'},
{'number': 567567567, 'name': 'lottery'},
{'number': 345345345, 'name': 'show of pots'},
{'number': 678678678, 'name': 'grandson asking for money'},
{'number': 234234234, 'name': 'loans'},
{'number': 456456456, 'name': 'free medical examinations'}
]

def search_linear(number, list_of_dicts):

idx = 0
found = False

if list_of_dicts[idx]['number'] == number:
found = True
else:
idx += 1

return idx if idx < len(list_of_dicts) else None

number = 567567567
idx = search_linear(number, tel_list)
print(f'The phone number {number} details are under index: {idx}')

if idx:
print(tel_list[idx])

```