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35 lines
1 KiB
Markdown
35 lines
1 KiB
Markdown
---
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title: "Python Operator Overloads"
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date: 2020-03-13T20:49:28-04:00
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draft: false
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tags: ["Python"]
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---
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I wrote a [blog post about operator overloads](/blog/cppoverloads/) in C++. Luckily for Python it is heavily document in what is called the [Python Data Model](https://docs.python.org/3/reference/datamodel.html). Though for the sake of having content, I'll share some of the ones that I heavily use in my classes.
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| Operator | Method |
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| -------- | ---------------------- |
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| `+` | `__add__(self, other)` |
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| `==` | `__eq__(self, other)` |
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| `len()` | `__len__(self)` |
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| `str()` | `__str__(self)` |
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| `hash()` | `__hash__(self)` |
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Example Usage:
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```python
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class Test:
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def __init__(self, x):
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self.x = x
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def __add__(self, other):
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return Test(self.x, other.x)
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def __eq__(self, other):
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return self.x == other.x
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def __len__(self):
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return len(self.x)
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def __str__(self):
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return self.x
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def __hash__(self):
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return hash(self.x)
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```
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