Creating 'Collection(graph, RDF.nil)' used to add a 'rdf:nil rdf:rest rdf:nil.'
triple to the graph, which turned the empty list into an infinite list.

This was a side-effect of unconditionally appending 'seq' to the collection,
which is not possible when the collection is 'nil' without ill side-effects.

This commit makes the append conditional; and also checks the collection
is non-empty in case the user explicitly tries to add item to the empty list.

This will allow using _end() in other methods that would not need to append

Co-authored-by: Ashley Sommer <[email protected]>

Co-authored-by: Ashley Sommer <[email protected]>

… support at parse time (RDFLib#2816)

* feat: hextuple handles blank node graph names correctly in parser and serialiser

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Revert "[pre-commit.ci] auto fixes from pre-commit.com hooks"

This reverts commit 78106bb.

* feat: add skolemization support for ntriples, nquads, hextuples and json-ld at parse time

* fix: mypy errors

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Nicholas Car <[email protected]>
Co-authored-by: Ashley Sommer <[email protected]>

* Fix implementation of BytesIOWrapper to make it more complete, more useful, and compliant with Python's BufferedIOBase and BinaryIO interface.
BytesIOWrapper can now also wrap a TextIO Unicode file, or a StringIO, as well as the original wrapped str.

* Add remaining missing methods: truncate, flush, isatty, fileno.

* Catch OSError in BytesIOWrapper on base stream isatty() and fileno(), throw this error when expected when corresponding functions are invoked on the Wrapper.

---------

Co-authored-by: Nicholas Car <[email protected]>

Bumps library/python from `52f92c5` to `740d94a`.

---
updated-dependencies:
- dependency-name: library/python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps library/python from `52f92c5` to `740d94a`.

---
updated-dependencies:
- dependency-name: library/python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…ib#2854)

* initial orjson support, for hextuples parser and serializer, and first stages of json-ld parser.
This relies on merging of the BytesIOWrapper PR.

* Finish work bringing orjson to JSON-LD Graph Parser
Add orjson to sparql-results-json parser, and sparql-results-json serializer
Tangential fixes to all the other non-json SPARQL-Results serializers
Adding better typing to all SPARQL-Results Serializers.
Got 7 ignored tests passing for SPARQL-Results Serializers.

* If its known, get FileInputSource encoding from the source itself for JSON-LD Parser.

* Fix MyPy complaint in JSON-LD parser caused by reusing a variable name after it already has a type associated.

* Add orjson support to the newly merged HTMLJSONParser.

* MyPy typing fixes, Black Fixes, and Ruff linting fixes for orjson branch after resolving recent merge conflicts.

* Add missing updated poetry.lock lockfile that is supposed to accompany the `orjson` pyproject addition.

* The linter ignore-assignment-type suppressions aren't used when orjson is not installed throwing a mypy error, but they are needed when orjson is installed to prevent different mypy errors. So add additional unused-ignore suppressions.

* Change internal usages of json serializer indent to 2, so that orjson and stdlib json outputs are the same for docs and comparison purposes.

* Apply Black formatting to the test/ dir too.

* build(deps-dev): bump ruff from 0.5.4 to 0.5.5

Bumps [ruff](https://github.com/astral-sh/ruff) from 0.5.4 to 0.5.5.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.5.4...0.5.5)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

* give Ruff some more wiggle room so Dependabot doesn't need to widen the limit on every new version.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Ashley Sommer <[email protected]>

…tuptools (RDFLib#2860)

They are only used a couple of tests, there is no need to keep it always on the latest version.

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.3.1 to 8.3.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.1...8.3.2)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>