__lt__

Dunder MethodPython 2.0+Intermediate

Defines behavior for the < less-than operator

Quick Info

Documentation
Official Docs
Python Version
2.0+

Learn by Difficulty

Easy2 examples
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Intermediate2 examples
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Advanced1 example
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Expert1 example
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Quick Example

python
class Student:
    def __init__(self, name, gpa):
        self.name = name
        self.gpa = gpa

    def __lt__(self, other):
        return self.gpa < other.gpa

    def __repr__(self):
        return f"{self.name}({self.gpa})"

students = [Student("Alice", 3.8), Student("Bob", 3.5), Student("Charlie", 3.9)]
print(sorted(students))

__lt__ defines behavior for the < less-than operator. Implementing it lets you customize how Python interacts with your objects.

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Tags

oopmagic-methodprotocolcore