black in setup and CI

.pre-commit-config.yaml

@@ -18,13 +18,10 @@ repos:
     hooks:
       - id: isort
         name: isort (python)
-  - repo: https://github.com/pre-commit/mirrors-yapf
-    rev: v0.32.0
+  - repo: https://github.com/psf/black
+    rev: 23.3.0
     hooks:
-      - id: yapf
-        args: [ "-i", "-r" ]
-        types: [ "python" ]
-        additional_dependencies: [ "toml" ]
+      - id: black
   - repo: https://github.com/kynan/nbstripout
     rev: 0.6.0
     hooks:

docs/developer/style-guide.rst

@@ -73,7 +73,7 @@ Formatting
 
 Your Python code will be checked for errors and formatting when opening a PR.
 We use the `flake8 <https://flake8.pycqa.org/en/latest/>`_ linter to check code quality,
-and `yapf <https://github.com/google/yapf>`_ to enforce code formatting.
+and `black <https://github.com/psf/black>`_ to enforce code formatting.
 Make sure that running your code though these tools does not generate any output before
 you push your changes.
 
@@ -82,7 +82,7 @@ From the top level directory, you can use
 .. code-block:: sh
 
    >$ flake8 .
-   >$ yapf --diff --recursive .
+   >$ black .
 
 Jupyter notebooks style
 -----------------------

environment.yml

@@ -10,6 +10,7 @@ channels:
   - nodefaults
 
 dependencies:
+  - black==23.3.0
   - conda-build=3.23.3
   - flake8=6.0.0
   - gitpython=3.1.30
@@ -31,7 +32,6 @@ dependencies:
   - sphinx=4.5.0
   - sphinx-book-theme=0.3.3
   - sphinx-copybutton=0.5.0
-  - yapf=0.32.0
   - pip:
     - nb-clean==2.4.0
     - orsopy==1.0.1

pyproject.toml

@@ -15,10 +15,12 @@ exclude_dirs = ["docs/conf.py", "docs/make_docs.py", "tests", "install", "tools"
 ignore-words-list = "elemt"
 skip = "./.git,./install,./build,./.tox,*/*_cache,*/.virtual_documents,*/.ipynb_checkpoints,*.pdf,*.svg"
 
+[tool.black]
+skip-string-normalization = true
+
 [tool.isort]
 skip_gitignore = true
-line_length = 88
-multi_line_output = 2  # for compatibility with yapf
+profile = "black"
 
 [tool.mypy]
 mypy_path = "src"

setup.cfg

@@ -42,7 +42,3 @@ plopp = py.typed
 # See https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#line-length
 max-line-length = 88
 extend-ignore = E203
-
-[yapf]
-based_on_style = pep8
-column_limit = 88