Nico0 Smart

Allow passing exclude keyword arguments to engine.save. Fixes #162

# Feature request ### Context I need to save ODMantic documents, but almost always I need to save them in a way that unset fields are not persisted in mongoDB....

I think it could be useful. Just recovered 30 gb of disk space pruning docker images, it would have been so nice if stacer did that for me.

Exclude_unset option removing dynamic default setted on a validator

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# Bug Output of `python -c "import pydantic.utils; print(pydantic.utils.version_info())"`: ``` pydantic version: 1.4 pydantic compiled: True install path: /home/nico/.local/lib/python3.6/site-packages/pydantic python version: 3.6.9 (default, Nov 7 2019, 10:44:02) [GCC 8.3.0] platform:...

text_factory type hint was simply "Type" which is kinda right for the most common cases of the parameter (str and bytes). However, text_fatory can be any other callable that accepts...

Mongomock is growing to a certain degree of complexity, so I think it would be reasonable to start working on a documentation site. This can be a long and painful...

Addresses #143

mypy error on parser.py:220

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mypy1.0.1 reports Invalid "type: ignore" comment [syntax] in the following line https://github.com/MKuranowski/aiocsv/blob/d92c113d08ddfdfc34bbc760addc77d33a3cf4e9/aiocsv/parser.py#L220C1-L221C1 ... maybe add the coloquial expression in a separate comment? Or investigate what is happenning further?

Hello! We were working with some experimental data and found out that in some cases the algorithm would throw an error because we were dividing by zero in the function...

`poetry install` fails to resolve valid dependencies (bug in extras?)

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### Description Poetry (version 1.5.1) To reproduce, use the following `pyproject.toml`: ```python [tool.poetry] name = "test" version = "0.1.0" description = "" authors = ["Nicolas Martinez "] readme = "README.md"...