require Python 3.11 and use it

.github/workflows/ci.yml

@@ -40,9 +40,6 @@ jobs:
             - os: ubuntu-24.04
               python-version: '3.11'
               toxenv: mypy
-            - os: ubuntu-24.04
-              python-version: '3.10'
-              toxenv: py310
             - os: ubuntu-24.04
               python-version: '3.11'
               toxenv: py311

pyproject.toml

@@ -11,7 +11,6 @@ classifiers = [
     "Operating System :: POSIX",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
@@ -21,7 +20,7 @@ classifiers = [
 ]
 license = "BSD-3-Clause"
 license-files = ["LICENSE.rst"]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
 ]
 
@@ -60,7 +59,7 @@ write_to_template = "__version__ = version = {version!r}\n"
 [tool.black]
 line-length = 120
 skip-magic-trailing-comma = true
-target-version = ['py310']
+target-version = ['py311']
 
 [tool.pytest.ini_options]
 minversion = "6.0"
@@ -80,7 +79,7 @@ line-length = 120
 ignore = ["E402"]
 
 [tool.mypy]
-python_version = '3.10'
+python_version = '3.11'
 strict_optional = false
 local_partial_types = true
 show_error_codes = true

src/borgstore/backends/posixfs.py

@@ -325,16 +325,12 @@ def hash(self, name: str, algorithm: str = "sha256") -> str:
         path = self._validate_join(name)
         self._check_permission(name, "r")
         try:
-            h = hashlib.new(algorithm)
+            hashlib.new(algorithm)
         except ValueError:
             raise ValueError(f"Unsupported hash algorithm: {algorithm}") from None
         try:
             with path.open("rb") as f:
-                while True:
-                    data = f.read(1024 * 1024)
-                    if not data:
-                        break
-                    h.update(data)
+                h = hashlib.file_digest(f, algorithm)
         except FileNotFoundError:
             raise ObjectNotFound(name) from None
         return h.hexdigest()

tox.ini

@@ -1,7 +1,7 @@
 # tox configuration - if you change anything here, run this to verify: tox --recreate
 
 [tox]
-envlist = py{310,311,312,313,314},flake8,mypy
+envlist = py{311,312,313,314},flake8,mypy
 
 [testenv]
 deps =