# How to Assert Almost Equal in Pytest?

To assert almost equal in Pytest, use the [approx()](https://docs.pytest.org/en/latest/reference/reference.html#pytest.approx) method. This is useful for floating-point comparisons that may involve small rounding errors. Here's how to use it:

```python
import pytest

def test_approx_equal():
    assert 3.1 == pytest.approx(3.2, abs=0.2)
```

You can place `pytest.approx()` on either side of the comparison:

```python
def test_approx_equal_reversed():
    assert pytest.approx(3.2, abs=0.2) == 3.1
```

`approx()` also works with lists, tuples, and other sequences:

```python
def test_approx_equal_list():
    assert [0.1 + 0.3, 0.2 + 0.5] == pytest.approx([0.4, 0.7])
```

To learn more about Pytest, check out the [beginner's guide to Pytest](https://betterstack.com/community/guides/testing/pytest-guide/).