chore(python): Add Python 3.14 builds

Signed-off-by: Dmitry Dygalo <dmitry@dygalo.dev>

Author: Stranger6667

.github/workflows/build.yml

@@ -70,10 +70,7 @@ jobs:
           cache-dependency-path: "**/requirements-*.txt"
 
       - name: Start background server
-        run: |
-          python -m pip install -r ./css-inline/tests/requirements-test.txt
-          # Starts the server in background
-          python ./css-inline/tests/server.py &
+        run: python ./css-inline/tests/server.py &
         shell: bash
 
       - uses: dtolnay/rust-toolchain@stable
@@ -317,10 +314,7 @@ jobs:
           cache-dependency-path: "**/requirements-*.txt"
 
       - name: Start background server
-        run: |
-          python -m pip install -r ./css-inline/tests/requirements-test.txt
-          # Starts the server in background
-          python ./css-inline/tests/server.py &
+        run: python ./css-inline/tests/server.py &
         shell: bash
 
       - name: Install Rust
@@ -500,7 +494,8 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-22.04, macos-15, windows-2022]
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy-3.11"]
+        python-version:
+          ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "pypy-3.11"]
         exclude:
           - os: macos-15
             python-version: "3.9"
@@ -526,10 +521,7 @@ jobs:
           cache-dependency-path: "**/requirements-*.txt"
 
       - name: Start background server
-        run: |
-          python -m pip install -r ./css-inline/tests/requirements-test.txt
-          # Starts the server in background
-          python ./css-inline/tests/server.py &
+        run: python ./css-inline/tests/server.py &
         shell: bash
 
       - run: python -m pip install -r requirements/dev.txt
@@ -669,10 +661,7 @@ jobs:
           cache-dependency-path: "**/requirements-*.txt"
 
       - name: Start background server
-        run: |
-          python -m pip install -r ./css-inline/tests/requirements-test.txt
-          # Starts the server in background
-          python ./css-inline/tests/server.py &
+        run: python ./css-inline/tests/server.py &
         shell: bash
 
       - run: bundle exec rake test
@@ -865,10 +854,7 @@ jobs:
           cache-dependency-path: "**/requirements-*.txt"
 
       - name: Start background server
-        run: |
-          python -m pip install -r ./css-inline/tests/requirements-test.txt
-          # Starts the server in background
-          python ./css-inline/tests/server.py &
+        run: python ./css-inline/tests/server.py &
         shell: bash
 
       - name: Run tests

CONTRIBUTING.md

@@ -48,10 +48,9 @@ It would be awesome if you can submit a failing test that demonstrates the probl
 
 ## Running tests
 
-Running tests requires a Flask app running in background:
+Running tests requires a test server running in background:
 
 ```
-python -m pip install flask
 python ./css-inline/tests/server.py &
 ```
 

bindings/python/README.md

@@ -44,7 +44,7 @@ into:
 - Can process multiple documents in parallel
 - Works on Linux, Windows, macOS and in the browser via PyOdide
 - Supports HTML5 & CSS3
-- Tested on CPython 3.9, 3.10, 3.11, 3.12, 3.13 and PyPy 3.11.
+- Tested on CPython 3.9, 3.10, 3.11, 3.12, 3.13, 3.14 and PyPy 3.11.
 
 ## Playground
 

bindings/python/pyproject.toml

@@ -21,6 +21,7 @@ classifiers=[
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Programming Language :: Rust",

css-inline/tests/requirements-test.in

@@ -1,12 +1,21 @@
-from flask import Flask
+from http.server import HTTPServer, BaseHTTPRequestHandler
 
-app = Flask(__name__)
 
+class Handler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        if self.path == "/external.css":
+            self.send_response(200)
+            self.send_header("Content-Type", "text/css")
+            self.end_headers()
+            self.wfile.write(b"h1 { color: blue; }")
+        else:
+            self.send_response(404)
+            self.end_headers()
 
-@app.route("/external.css")
-def stylesheet():
-    return "h1 { color: blue; }"
+    def log_message(self, format, *args):
+        pass  # Suppress logging
 
 
 if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=1234)
+    server = HTTPServer(("0.0.0.0", 1234), Handler)
+    server.serve_forever()