chore(python): Update PyO3 to 0.17.1 & drop Python 3.6 support

Author: Stranger6667

.github/workflows/build.yml

@@ -90,7 +90,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, macos-11, windows-2019]
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10']
 
     name: Python ${{ matrix.python-version }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}

.github/workflows/python-release.yml

@@ -75,7 +75,7 @@ jobs:
           path: wheelhouse/*.whl
 
   wheels-macos-universal:
-    # `cibuildwheel` does not support building CPython 3.6/3.7 wheels for macOS ARM64
+    # `cibuildwheel` does not support building CPython 3.7 wheels for macOS ARM64
     # This job build universal wheel that covers these versions.
     # Non-universal wheels are also in place, because they have smaller size & will be used in Python 3.8+ installations
     name: "Wheels for macOS universal2"
@@ -101,7 +101,7 @@ jobs:
       - name: Build the wheel
         run: |
           cd bindings/python && \
-          ../../venv/bin/python setup.py bdist_wheel --py-limited-api=cp36 && \
+          ../../venv/bin/python setup.py bdist_wheel --py-limited-api=cp37 && \
           mv dist/css_inline*.whl ../../wheelhouse
         env:
           MACOSX_DEPLOYMENT_TARGET: '10.10'

bindings/python/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Update `PyO3` to `0.17.1`.
+
+### Removed
+
+- Python 3.6 support.
+
 ## [0.8.3] - 2022-07-21
 
 ### Fixed

bindings/python/Cargo.toml

@@ -22,7 +22,7 @@ features = ["http", "file"]
 [dependencies]
 url = "2"
 rayon = "1"
-pyo3 = { version = "^0.15", features = ["extension-module", "abi3"] }
+pyo3 = { version = "0.17.1", features = ["extension-module", "abi3"] }
 pyo3-built = "0.4"
 
 [profile.release]

bindings/python/README.md

@@ -109,13 +109,12 @@ The results above were measured with stable `rustc 1.61.0`, `Python 3.10.4`, `Li
 Python support
 --------------
 
-`css_inline` supports CPython 3.6, 3.7, 3.8, 3.9, 3.10, and PyPy 3.7 and 3.8.
+`css_inline` supports CPython 3.7, 3.8, 3.9, 3.10, and PyPy 3.7 and 3.8.
 
 The following wheels are available:
 
 |                | manylinux<br/>musllinux<br/>x86_64 | manylinux<br/>musllinux<br/>aarch64 | macOS Intel | macOS ARM64 | Windows 64bit | Windows 32bit |
 |----------------|:----------------:|:-----------------:|:-----------:|:-----------:|:-------------:|:-------------:|
-| CPython 3.6    |        ✔         |         ✔         |      ✔️      |      ✔ ️     |       ✔️       |       ✔️       |
 | CPython 3.7    |        ✔         |         ✔         |      ✔️      |      ✔      |       ✔️       |       ✔️       |
 | CPython 3.8    |        ✔         |         ✔         |      ✔️      |      ✔️      |       ✔️       |       ✔️       |
 | CPython 3.9    |        ✔         |         ✔         |      ✔️      |      ✔️      |       ✔️       |       ✔️       |

bindings/python/setup.py

@@ -1,22 +1,7 @@
 import platform
 
 from setuptools import setup
-
-try:
-    from setuptools_rust import Binding, RustExtension
-except ImportError:
-    from textwrap import dedent
-
-    raise ImportError(
-        dedent(
-            """
-            `setuptools-rust` is a required dependency to run `setup.py`.
-            This should not happen if you're using `pip>=10` as it honors `pyproject.toml`.
-            This usually (at least on our workflows) might happen while
-            building source-distribution.
-            """
-        )
-    )
+from setuptools_rust import Binding, RustExtension
 
 
 def call_setup():
@@ -31,17 +16,15 @@ def call_setup():
         author_email="dadygalo@gmail.com",
         maintainer="Dmitry Dygalo",
         maintainer_email="dadygalo@gmail.com",
-        python_requires=">=3.6",
+        python_requires=">=3.7",
         url="https://github.com/Stranger6667/css-inline/tree/master/bindings/python",
         license="MIT",
         rust_extensions=[
             RustExtension(
                 "css_inline",
                 py_limited_api=True,
                 features=(
-                    []
-                    if platform.python_implementation() == "PyPy"
-                    else ["pyo3/abi3-py36"]
+                    [] if platform.python_implementation() == "PyPy" else ["pyo3/abi3"]
                 ),
                 rust_version=">=1.54.0",
             )
@@ -54,7 +37,6 @@ def call_setup():
             "Operating System :: Microsoft :: Windows",
             "Operating System :: POSIX",
             "Programming Language :: Python :: 3",
-            "Programming Language :: Python :: 3.6",
             "Programming Language :: Python :: 3.7",
             "Programming Language :: Python :: 3.8",
             "Programming Language :: Python :: 3.9",

bindings/python/src/lib.rs

@@ -23,7 +23,7 @@
     rust_2018_idioms,
     rust_2018_compatibility
 )]
-use css_inline as rust_inline;
+use ::css_inline as rust_inline;
 use pyo3::{create_exception, exceptions, prelude::*, types::PyList, wrap_pyfunction};
 use rayon::prelude::*;
 use std::borrow::Cow;

bindings/python/tox.ini

@@ -1,16 +1,13 @@
 [tox]
-# Skip Source distribution build to allow each task to install it via pip
-# (workaround the fact that setup.py does not honor pyproject.toml)
 skipsdist = True
-
-envlist = py{36,37,38,39}
+envlist = py{37,38,39,310}
 
 [testenv]
 deps =
   pytest
   hypothesis
 commands =
-  pip install -e .  # Installing it within commands allow faster env build (NOTE: uses debug rust build)
+  pip install .
   python -m pytest tests-py {posargs:}
 
 [testenv:build-sdist]