Set line-length to 79 characters according to PEP-8

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 ### Changed
 
+* Restored default line-length of 79 characters, as recommended by [PEP-8](https://peps.python.org/pep-0008/#maximum-line-length) [#389](https://github.com/NLeSC/python-template/pull/389)
 * Moved from setup.cfg/.py to pyproject.toml [#351](https://github.com/NLeSC/python-template/issues/351)
 * Moved from prospector to ruff [#336](https://github.com/NLeSC/python-template/issues/336)
 * Renamed `project_name` to `directory_name` in cookiecutter questionnaire

{{cookiecutter.directory_name}}/docs/conf.py

@@ -78,11 +78,12 @@
 
 # -- Options for Intersphinx
 
-intersphinx_mapping = {'python': ('https://docs.python.org/3', None),
-                       # Commonly used libraries, uncomment when used in package
-                       # 'numpy': ('http://docs.scipy.org/doc/numpy/', None),
-                       # 'scipy': ('http://docs.scipy.org/doc/scipy/reference/', None),
-                       # 'scikit-learn': ('https://scikit-learn.org/stable/', None),
-                       # 'matplotlib': ('https://matplotlib.org/stable/', None),
-                       # 'pandas': ('http://pandas.pydata.org/docs/', None),
-                       }
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/3', None),
+    # Commonly used libraries, uncomment when used in package
+    # 'numpy': ('http://docs.scipy.org/doc/numpy/', None),
+    # 'scipy': ('http://docs.scipy.org/doc/scipy/reference/', None),
+    # 'scikit-learn': ('https://scikit-learn.org/stable/', None),
+    # 'matplotlib': ('https://matplotlib.org/stable/', None),
+    # 'pandas': ('http://pandas.pydata.org/docs/', None),
+}

{{cookiecutter.directory_name}}/pyproject.toml

@@ -81,7 +81,7 @@ force_single_line = 1
 no_lines_before = ["FUTURE", "STDLIB", "THIRDPARTY", "FIRSTPARTY", "LOCALFOLDER"]
 known_first_party = "{{ cookiecutter.package_name }}"
 src_paths = ["{{ cookiecutter.package_name }}", "tests"]
-line_length = 120
+line_length = 79
 
 # For completeness, until we move to an src-based layout
 [tool.setuptools.packages.find]
@@ -166,7 +166,7 @@ per-file-ignores = {}
 dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
 
 target-version = "py39"
-line-length = 120
+line-length = 79
 
 [tool.ruff.isort]
 known-first-party = ["{{ cookiecutter.package_name }}"]