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Python Classes Without Boilerplate
attrs 20.1.0, Python 3.8.3. The asdict and astuple functions raise exceptions on instances with unset `init=False` attributes. I ran into this while looking into Tinche/cattrs#67, and was surprised to find...
Converters are one-arg functions, some one-arg functions yield type error ``` Unsupported converter, only named functions and types are currently supported ``` One of the things I love about attrs...
I was playing around with type annotations and Attrs, and I think I may have found an issue. Given the following Python 2/3 script: ```python from __future__ import absolute_import from...
### TLDR It would be very useful to extract the `__annotations__` handling logic currently in [`_transform_attrs`](https://github.com/python-attrs/attrs/blob/master/src/attr/_make.py#L296) into a standalone function that can be used to convert annotations into `_CountingAttr`s and...
Currently if I need to add a validator to check a condition that affects two attributes, I have to make it a validator of one of them. For example: ```python...
The `dataclasses` ecosystem is growing rapidly. Currently, it's not easy for attrs classes to benefit from the developments in the`dataclasses` ecosystem. It would be nice to fix this somehow. There...
With attrs 19.1.0/py 3.7.2, I have the following `attrbug.py`: ```python from typing import Optional from attr import validators import attr @attr.s class DoesntWorkWithMyPy: required_bool: bool = attr.ib( validator=validators.optional(validators.instance_of(bool)), default=False, )...
the `repr()` generated by `attrs` looks something like this by default: ``` MyClass(a=1, b=2) ``` this is fine in simple cases. however, when using `init=False`, and implementing my own `__init__()`,...
On some browser-python runtimes, `eval()` is either catastrophically slow (brython, skulpt) or completely unavailable (pyj(ama)s, batavia). Since attrs is The Library You Should Absolutely Use No Matter What™, it would...
Every now and then I stumble into wanting to have class variables that are part of everything (e.g. repr) except `__init__`. We can do: ```python @attr.s class C: x =...
