build: restructure requirements (#40)

* build: restructure requirements

remove requirements.txt files and replace with structured
requirements in setup.py, with extras_require for 'test' and
'docs'. set minimum python version to 3.10.

* ci: fix ci to install package properly

* fix: add ipykernel to docs requirements

.github/workflows/python-package.yml

@@ -27,13 +27,10 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest nbval django codecov pytest-cov
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        pip install -e '.[tests]'
     - name: Lint with flake8
       run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88 --statistics
+        flake8 .
     - name: Test with pytest
       run: |
         pytest --nbval --sanitize-with doc/pytest-sanitize.ini --cov=thunor

.readthedocs.yml

@@ -26,4 +26,7 @@ sphinx:
 # Optionally declare the Python requirements required to build your docs
 python:
    install:
-   - requirements: doc/requirements.txt
+   - method: pip
+     path: .
+     extra_requirements:
+       - docs

setup.py

@@ -19,9 +19,14 @@ def main():
         author_email='[email protected]',
         url='https://www.thunor.net',
         packages=['thunor', 'thunor.converters'],
+        python_requires='>=3.10',
         install_requires=['numpy', 'scipy', 'pandas', 'plotly', 'seaborn',
                           'tables'],
-        tests_require=['pytest', 'nbval', 'django', 'nbformat'],
+        extras_require={
+            'test': ['pytest', 'nbval', 'django', 'nbformat'],
+            'docs': ['sphinx<8', 'sphinx-rtd-theme', 'mock', 'nbsphinx',
+                     'ipykernel'],
+        },
         cmdclass=versioneer.get_cmdclass(),
         zip_safe=True,
         classifiers=[