"""
* Assignment: Function Scope Global
* Required: yes
* Complexity: easy
* Lines of code: 5 lines
* Time: 8 min

English:
    1. Define in global scope `SELECT: set[str]` with values:
       `'setosa', 'versicolor'`
    2. Define function `sumif(features, label)`
    3. Function sums `features`, only when `label` is in `SELECT`
    4. When `label` is not in `select` return `0` (zero)
    5. Run doctests - all must succeed

Polish:
    1. Zdefiniuj w przestrzeni globalnej `SELECT: set[str]` z wartościami:
       `'setosa', 'versicolor'`
    2. Zdefiniuj funkcję `sumif(features, label)`
    3. Funkcja sumuje `features`, tylko gdy `label` jest w `SELECT`
    4. Gdy `label` nie występuje w `select` zwróć `0` (zero)
    5. Uruchom doctesty - wszystkie muszą się powieść

Tests:
    >>> import sys; sys.tracebacklimit = 0
    >>> from inspect import isfunction

    >>> assert isfunction(sumif), \
    'Object `sumif` must be a function'
    >>> assert SELECT is not Ellipsis, \
    'Assign result to variable: `SELECT`'
    >>> assert type(SELECT) is set, \
    'Variable `result` has invalid type, should be set'
    >>> assert all(type(x) is str for x in SELECT), \
    'All rows in `result` should be str'

    >>> sum(sumif(X,y) for *X, y in DATA[1:])
    49.1
"""

DATA = [
    ('Sepal length', 'Sepal width', 'Petal length', 'Petal width', 'Species'),
    (5.8, 2.7, 5.1, 1.9, 'virginica'),
    (5.1, 3.5, 1.4, 0.2, 'setosa'),
    (5.7, 2.8, 4.1, 1.3, 'versicolor'),
    (6.3, 2.9, 5.6, 1.8, 'virginica'),
    (6.4, 3.2, 4.5, 1.5, 'versicolor'),
    (4.7, 3.2, 1.3, 0.2, 'setosa'),
]

# Solution
SELECT = {'setosa', 'versicolor'}


def sumif(features, label):
    if label in SELECT:
        return sum(features)
    else:
        return 0