chore: drop Python 3.9 support (#247)

Signed-off-by: SdgJlbl <[email protected]>

.github/workflows/main-check.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        python: ["3.9", "3.10", "3.11"]
+        python: ["3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/validate-pr.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        python: ["3.9", "3.10", "3.11", "3.12"]
+        python: ["3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
@@ -110,7 +110,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        python: ["3.9", "3.10", "3.11", "3.12"]
+        python: ["3.10", "3.11", "3.12"]
     steps:
       - uses: actions/setup-python@v5
         with:

.github/workflows/windows-subprocess-check.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest]
-        python: ["3.9", "3.10", "3.11"]
+        python: ["3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4

changes/247.removed

@@ -0,0 +1 @@
+Drop Python 3.9 support.

pyproject.toml

@@ -12,7 +12,6 @@ path = "substrafl/__version__.py"
 name = "substrafl"
 classifiers = [
     "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -38,7 +37,7 @@ license = { file = "LICENSE" }
 
 description = """A high-level federated learning Python library to run
     federated learning experiments at scale on a Substra network"""
-requires-python = ">= 3.9"
+requires-python = ">= 3.10"
 
 [project.optional-dependencies]
 dev = [

substrafl/dependency/path_management.py

@@ -152,13 +152,9 @@ def copy_paths(
 def _ignore_files(expanded_excluded, dest_dir):
     def _ignore_files(path: str, names: List[str]) -> Set[str]:
         p = Path(path).resolve()
-
-        # Replicate is_relative_to, added in Python 3.9
-        try:
-            p.relative_to(dest_dir.resolve())
-        except ValueError:
-            return set(name for name in names if p / name in expanded_excluded)
-        else:
+        if p.is_relative_to(dest_dir.resolve()):
             return set(names)
+        else:
+            return set(name for name in names if p / name in expanded_excluded)
 
     return _ignore_files

substrafl/remote/register/register.py

@@ -26,7 +26,7 @@
 
 # minimal and maximal values of Python 3 minor versions supported
 # we need to store this as integer, else "3.11" < "3.9" (string comparison)
-MINIMAL_PYTHON_VERSION = 9  # 3.9
+MINIMAL_PYTHON_VERSION = 10  # 3.10
 MAXIMAL_PYTHON_VERSION = 12  # 3.12
 
 _CPU_BASE_IMAGE = """

tests/installable_library/setup.py

@@ -8,5 +8,5 @@
     version="0.0.1",
     description="testlib",
     packages=find_packages(),
-    python_requires=">=3.9",
+    python_requires=">=3.10",
 )

tests/remote/register/test_register.py

@@ -32,13 +32,13 @@ def add_function(*args):
         pass
 
 
-@pytest.mark.parametrize("version", ["2.7", "3.7", "3.8", "3.18"])
+@pytest.mark.parametrize("version", ["2.7", "3.7", "3.8", "3.9", "3.18"])
 def test_check_python_version(version):
     with pytest.raises(UnsupportedPythonVersionError):
         register._check_python_version(version)
 
 
-@pytest.mark.parametrize("version", ["3.9", "3.10", "3.11", "3.12"])
+@pytest.mark.parametrize("version", ["3.10", "3.11", "3.12"])
 def test_check_python_version_valid(version):
     """Does not raise for supported versions"""
     register._check_python_version(version)