feat: convert to uv and ruff

-   Remove `requires-optional.txt` and `test_requirements/*` (no longer used).
-   Convert `commands.py` to use `argparse` instead of hand-rolled.
-   Rationalize imports in `codegen/__init__.py` (all at top level).
-   Divide dependencies in `pyproject.toml` into core and optional.
-   Update `pyproject.toml` to install `inflect` and `requests`.
-   Modify `uv.lock` file.
-   Modify code reformatting in `codegen/__init__.py` to use `ruff` instead of `black`.
-   Add new function to use `ruff` to reformat existing code (run `python commands.py format`).
-   Add new function to use `ruff` to check code (run `python commands.py lint`).
-   Regenerate code and reformat using `ruff`
-   Replace uses of `uv pip` with `uv sync` in `.circleci/config.yml`.
-   Clean up several hundred complaints from `ruff` about unused variables and imports.
-   Clean up cases in `tests/**/*.py` where the same function name was used for several tests
    (which meant that only the last one defined was actually run).

Note: `uv.lock` reflects `dev_optional`, i.e., pins *all* dependencies.

Author: gvwilson

.circleci/config.yml

@@ -25,8 +25,7 @@ commands:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install .
-            uv pip install -r ./test_requirements/requirements_core.txt
+            uv sync --extra dev_core
       - run:
           name: List installed packages and python version
           command: |
@@ -56,8 +55,7 @@ commands:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install .
-            uv pip install -r ./test_requirements/requirements_optional.txt
+            uv sync --extra dev_optional
 
       - when:
           condition:
@@ -70,8 +68,7 @@ commands:
                 name: Install pandas
                 command: |
                   source .venv/bin/activate
-                  uv pip install pip
-                  python -m pip install pandas==<<parameters.pandas_version>> numpy==<<parameters.numpy_version>>
+                  uv pip install pandas==<<parameters.pandas_version>> numpy==<<parameters.numpy_version>>
 
       - run:
           name: Test core
@@ -125,8 +122,7 @@ commands:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install .
-            uv pip install -r ./test_requirements/requirements_optional.txt
+            uv pip install .[dev_optional]
             # Install Kaleido v0 instead of the v1 specified in requirements_optional.txt
             uv pip uninstall kaleido
             uv pip install kaleido==0.2.1
@@ -151,16 +147,16 @@ jobs:
     steps:
       - checkout
       - run:
-          name: Install black
+          name: Install ruff
           command: |
-            python -m venv venv
-            . venv/bin/activate
-            pip install black==25.1.0
+            uv venv
+            source .venv/bin/activate
+            uv sync --extra dev_core
       - run:
-          name: Check formatting with black
+          name: Check handwritten code with ruff
           command: |
-            . venv/bin/activate
-            black --check . --exclude venv
+            source .venv/bin/activate
+            ruff format .
 
   test_core_py:
     parameters:
@@ -226,22 +222,20 @@ jobs:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install -e .
-            uv pip install -r test_requirements/requirements_optional.txt
+            uv sync --extra dev_optional
 
       - run:
-          name: Build html figures (Pandas 2)
+          name: Build HTML figures (Pandas 2)
           command: |
             source .venv/bin/activate
             python tests/percy/plotly-express.py
       - run:
-          name: Build html figures (Pandas 1) and compare
+          name: Build HTML figures (Pandas 1) and compare
           command: |
             source .venv/bin/activate
             mkdir tests/percy/pandas2
             mv tests/percy/*.html tests/percy/pandas2/
-            uv pip install pip
-            python -m pip install pandas==1.5.3 numpy==1.26.4
+            uv pip install pandas==1.5.3 numpy==1.26.4
             python tests/percy/plotly-express.py
             python tests/percy/compare-pandas.py
             rm -rf tests/percy/pandas2
@@ -273,8 +267,7 @@ jobs:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install -e .
-            uv pip install -r ./test_requirements/requirements_core.txt black inflect jupyterlab
+            uv sync --extra dev_optional
       - run:
           name: Update plotly.js to dev
           command: |
@@ -291,7 +284,7 @@ jobs:
           name: Build source distribution packages
           command: |
             source .venv/bin/activate
-            uv pip install build
+            uv sync --extra dev_build
             python -m build --sdist --wheel -o dist
           when: always
       - store_artifacts:
@@ -312,8 +305,7 @@ jobs:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install build
-            uv pip install jupyter
+            uv sync --extra dev_build
             cd js
             npm ci
             npm run build
@@ -352,7 +344,7 @@ jobs:
             curl -LsSf https://astral.sh/uv/install.sh | sh
             uv venv
             source .venv/bin/activate
-            uv pip install -r requirements.txt
+            uv sync --extra dev_build
             cd ..
             if [ "${CIRCLE_BRANCH}" != "doc-prod" ]; then
               uv pip uninstall plotly
@@ -439,6 +431,7 @@ jobs:
       - store_artifacts:
           path: doc/build
           destination: doc/build
+
 workflows:
   code_formatting:
     jobs:
@@ -449,7 +442,6 @@ workflows:
   release_build:
     jobs:
       - full_build
-  
   build:
     jobs:
       - test_core_py:

.github/ISSUE_TEMPLATE.md

@@ -1,7 +1,9 @@
-Thanks for your interest in Plotly.py!
+Thanks for your interest in Plotly.py.
+Before opening an issue, please:
 
-Before opening an issue, please search for existing and closed issues :)
+-   Use the [latest version](https://github.com/plotly/plotly.py/blob/main/CHANGELOG.md) of plotly.py in your report unless not applicable.
+-   Search for existing and closed issues.
+-   Include a minimal reproducible example with bug reports.
 
-**Please** accompany bug reports with a reproducible example. Please use the [latest version](https://github.com/plotly/plotly.py/blob/main/CHANGELOG.md) of plotly.py in your report unless not applicable.
-
-Note that GitHub Issues are meant to be used for bug reports and feature requests only. Implementation or usage questions should be asked on [community.plotly.com](https://community.plotly.com/c/graphing-libraries/python/10) or on Stack Overflow (tagged [`plotly`](https://stackoverflow.com/questions/tagged/plotly)).
+Note that GitHub Issues are meant to be used for bug reports and feature requests.
+Questions about usage should be asked on [community.plotly.com](https://community.plotly.com/c/graphing-libraries/python/10).

.github/pull_request_template.md

@@ -1,38 +1,38 @@
 <!--
-Please uncomment this block and take a look at this checklist if your PR is making substantial changes to **documentation**/impacts files in the `doc` directory. Check all that apply to your PR, and leave the rest unchecked to discuss with your reviewer! Not all boxes must be checked for every PR :)
+Please uncomment this block and fill in this checklist if your PR makes substantial changes to documentation in the `doc` directory.
+Not all boxes must be checked for every PR:
+check those that apply to your PR and leave the rest unchecked to discuss with your reviewer.
 
-If your PR modifies code of the `plotly` package, we have a different checklist
-below :-).
+If your PR modifies code of the `plotly` package, we have a different checklist below.
 
-### Documentation PR
+## Documentation PR
 
-- [ ] I've [seen the `doc/README.md` file](https://github.com/plotly/plotly.py/blob/main/doc/README.md)
-- [ ] This change runs in the current version of Plotly on PyPI and targets the `doc-prod` branch OR it targets the `main` branch
-- [ ] If this PR modifies the first example in a page or adds a new one, it is a `px` example if at all possible
-- [ ] Every new/modified example has a descriptive title and motivating sentence or paragraph
-- [ ] Every new/modified example is independently runnable
-- [ ] Every new/modified example is optimized for short line count	and focuses on the Plotly/visualization-related aspects of the example rather than the computation required to produce the data being visualized
-- [ ] Meaningful/relatable datasets are used for all new examples instead of randomly-generated data where possible
-- [ ] The random seed is set if using randomly-generated data in new/modified examples
-- [ ] New/modified remote datasets are loaded from https://plotly.github.io/datasets and added to https://github.com/plotly/datasets
-- [ ] Large computations are avoided in the new/modified examples in favour of loading remote datasets that represent the output of such computations
-- [ ] Imports are `plotly.graph_objects as go` / `plotly.express as px` / `plotly.io as pio`
-- [ ] Data frames are always called `df`
-- [ ] `fig = <something>` call is high up in each new/modified example (either `px.<something>` or `make_subplots` or `go.Figure`)
-- [ ] Liberal use is made of `fig.add_*` and `fig.update_*` rather than `go.Figure(data=..., layout=...)` in every new/modified example
-- [ ] Specific adders and updaters like `fig.add_shape` and `fig.update_xaxes` are used instead of big `fig.update_layout` calls in every new/modified example
-- [ ] `fig.show()` is at the end of each new/modified example
-- [ ] `plotly.plot()` and `plotly.iplot()` are not used in any new/modified example
-- [ ] Hex codes for colors are not used in any new/modified example in favour of [these nice ones](https://github.com/plotly/plotly.py/issues/2192)
+- [ ] I have seen the [`doc/README.md`](https://github.com/plotly/plotly.py/blob/main/doc/README.md) file.
+- [ ] This change runs in the current version of Plotly on PyPI and targets the `doc-prod` branch OR it targets the `main` branch.
+- [ ] If this PR modifies the first example in a page or adds a new one, it is a `px` example if at all possible.
+- [ ] Every new/modified example has a descriptive title and motivating sentence or paragraph.
+- [ ] Every new/modified example is independently runnable.
+- [ ] Every new/modified example is optimized for short line count and focuses on the Plotly/visualization-related aspects of the example rather than the computation required to produce the data being visualized.
+- [ ] Meaningful/relatable datasets are used for all new examples instead of randomly-generated data where possible.
+- [ ] The random seed is set if using randomly-generated data.
+- [ ] New/modified remote datasets are loaded from https://plotly.github.io/datasets and added to https://github.com/plotly/datasets.
+- [ ] Large computations are avoided in the new/modified examples in favour of loading remote datasets that represent the output of such computations.
+- [ ] Imports are `plotly.graph_objects as go`, `plotly.express as px`, and/or `plotly.io as pio`.
+- [ ] Data frames are always called `df`.
+- [ ] `fig = <something>` is called high up in each new/modified example (either `px.<something>` or `make_subplots` or `go.Figure`).
+- [ ] Liberal use is made of `fig.add_*` and `fig.update_*` rather than `go.Figure(data=..., layout=...)`.
+- [ ] Specific adders and updaters like `fig.add_shape` and `fig.update_xaxes` are used instead of big `fig.update_layout` calls.
+- [ ] `fig.show()` is at the end of each example.
+- [ ] `plotly.plot()` and `plotly.iplot()` are not used in any example.
+- [ ] Named colors are used instead of hex codes wherever possible.
+- [ ] Code blocks are marked with `&#96;&#96;&#96;python`.
 
 ## Code PR
 
-- [ ] I have read through the [contributing notes](https://github.com/plotly/plotly.py/blob/main/CONTRIBUTING.md) and understand the structure of the package. In particular, if my PR modifies code of `plotly.graph_objects`, my modifications concern the `codegen` files and not generated files.
-- [ ] I have added tests (if submitting a new feature or correcting a bug) or
-  modified existing tests.
-- [ ] For a new feature, I have added documentation examples in an existing or
-  new tutorial notebook (please see the doc checklist as well).
-- [ ] I have added a CHANGELOG entry if fixing/changing/adding anything substantial.
-- [ ] For a new feature or a change in behaviour, I have updated the relevant docstrings in the code to describe the feature or behaviour (please see the doc checklist as well).
+- [ ] I have read through the [contributing notes](https://github.com/plotly/plotly.py/blob/main/CONTRIBUTING.md) and understand the structure of the package. In particular, if my PR modifies code of `plotly.graph_objects`, my modifications concern the code generator and *not* the generated files.
+- [ ] I have added tests or modified existing tests.
+- [ ] For a new feature, I have added documentation examples (please see the doc checklist as well).
+- [ ] I have added a CHANGELOG entry if changing anything substantial.
+- [ ] For a new feature or a change in behavior, I have updated the relevant docstrings in the code.
 
 -->