Added urllib3 < 2.X compatibility for the Retry object

Added matrix to test if it also works with urllib3 <2.x

.github/workflows/tests.yml

@@ -12,12 +12,18 @@ jobs:
           '3.11',
           '3.12',
         ]
-    name: Python ${{ matrix.python-version }}
+        include:
+          - python-version: '3.9'
+            post-venv: 'venv/bin/pip install "urllib3<2" "requests<=2.30" "types-requests<=2.30"'
+    name: Python ${{ matrix.python-version }} ${{ matrix.post-venv }}
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         architecture: x64
+    - run: make venv
+    - if: ${{ matrix.post-venv }}
+      run: ${{ matrix.post-venv }}
     - run: make test
     - run: make lint

flareio/api_client.py

@@ -50,19 +50,26 @@ def _create_session() -> requests.Session:
         # Enable retries
         session.mount(
             "https://",
-            HTTPAdapter(
-                max_retries=Retry(
-                    total=5,
-                    backoff_factor=2,
-                    status_forcelist=[429, 502, 503, 504],
-                    allowed_methods={"GET", "POST"},
-                    backoff_max=15,
-                )
-            ),
+            HTTPAdapter(max_retries=FlareApiClient._create_retry()),
         )
 
         return session
 
+    @staticmethod
+    def _create_retry() -> Retry:
+        retry = Retry(
+            total=5,
+            backoff_factor=2,
+            status_forcelist=[429, 502, 503, 504],
+            allowed_methods={"GET", "POST"},
+        )
+
+        # Support for urllib3 < 2.X
+        if hasattr(retry, "backoff_max"):
+            retry.backoff_max = 15
+
+        return retry
+
     def generate_token(self) -> str:
         payload: t.Optional[dict] = None
 

tests/test_api_client_creation.py

@@ -3,6 +3,8 @@
 
 from .utils import get_test_client
 from datetime import datetime
+from packaging.version import Version
+from urllib3 import __version__ as urllib_version
 
 from flareio import FlareApiClient
 from flareio.exceptions import TokenError
@@ -62,3 +64,10 @@ def test_generate_token_error() -> None:
 
     with pytest.raises(TokenError):
         client.generate_token()
+
+
+def test_backoff_max() -> None:
+    if Version(urllib_version) >= Version("2.0.0"):
+        retry = FlareApiClient._create_retry()
+        assert hasattr(retry, "backoff_max")
+        assert retry.backoff_max == 15