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#!/bin/sh
[ "$1" = python3-attrs ] || exit 0
python3 - <<'EOF'
import attr
import attrs
# Define a class with attrs
@attr.s
class Point:
x = attr.ib()
y = attr.ib(default=0)
p = Point(1, 2)
assert p.x == 1
assert p.y == 2
p2 = Point(3)
assert p2.y == 0
# Equality
assert Point(1, 2) == Point(1, 2)
assert Point(1, 2) != Point(1, 3)
# attrs.define (modern API)
@attrs.define
class Circle:
radius: float
color: str = "red"
c = Circle(5.0)
assert c.radius == 5.0
assert c.color == "red"
c2 = Circle(radius=3.0, color="blue")
assert c2.color == "blue"
# asdict
d = attr.asdict(p)
assert d == {"x": 1, "y": 2}
print("python-attrs OK")
EOF
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