Sqlparams

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- Fix documentation.

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- Dropped support of EOL Python 3.7.
- Support Python 3.12.

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Improvements:

- Support `LiteralString`_.

.. _`LiteralString`: https://docs.python.org/3/library/typing.html#typing.LiteralString

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- Dropped support of EOL Python 3.6.
- Support Python 3.11.
- Changed build system to `pyproject.toml`_ and build backend to `setuptools.build_meta`_ which may have unforeseen consequences.
- Safely expand empty tuples. Fixes `Issue 8`_.
- Add support for stripping comments. This helps prevent expansion of unexpected variables in comments. Fixes `Issue 9`_.
- Rename GitHub project from `python-sql-parameters`_ to `python-sqlparams`_.

.. _`pyproject.toml`: https://pip.pypa.io/en/stable/reference/build-system/pyproject-toml/
.. _`setuptools.build_meta`: https://setuptools.pypa.io/en/latest/build_meta.html
.. _`Issue 8`: https://github.com/cpburnz/python-sqlparams/issues/8
.. _`Issue 9`: https://github.com/cpburnz/python-sqlparams/issues/9
.. _`python-sql-parameters`: https://github.com/cpburnz/python-sql-parameters
.. _`python-sqlparams`: https://github.com/cpburnz/python-sqlparams

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- Drop support for EOL Python 3.5.
- `Issue 10`_: When converting to 'format'/'pyformat' types, escape existing '%' characters.
- When converting from 'format'/'pyformat' types, set `escape_char=True` to unescape double '%' characters.

.. _`Issue 10`: https://github.com/cpburnz/python-sqlparams/issues/10

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- Major changes to internal implementation.
- Support converting any parameter style to any parameter style (all named,
numeric, and ordinal styles).
- Renamed attribute `named` to `in_style` on `sqlparams.SQLParams`.
- Renamed attribute `ordinal` to `out_style` on `sqlparams.SQLParams`.
- Removed attributes `match` and `replace` from `sqlparams.SQLParams` which
should have been private.
- Named parameters must now be valid identifiers (can no longer start with a
digit to help prevent incorrectly matching common strings such as
datetimes). Fixes `Issue 4`_.
- `Issue 7`_: Support dollar sign style for numeric and named parameters.

.. _`Issue 4`: https://github.com/cpburnz/python-sqlparams/issues/4
.. _`Issue 7`: https://github.com/cpburnz/python-sqlparams/issues/7