chore: drop support for Python 3.7 and 3.8

Test against supported versions of PyPy: 3.10 and 3.11

Author: Rogdham

.github/workflows/build.yml

@@ -11,14 +11,11 @@ jobs:
     strategy:
       matrix:
         python:
-          - "3.7"
-          - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
-          - "pypy-3.7"
-          - "pypy-3.8"
-          - "pypy-3.9"
+          - "pypy-3.10"
+          - "pypy-3.11"
     steps:
       - uses: actions/checkout@v5
       - name: Setup Python ${{ matrix.python }}

CHANGELOG.md

@@ -9,10 +9,15 @@ adheres to [Semantic Versioning](https://semver.org/).
 
 [unreleased]: https://github.com/rogdham/python-xz/compare/v0.5.0...HEAD
 
+### :boom: Breaking changes
+
+- End of Python 3.7 and 3.8 support
+
 ### :house: Internal
 
 - Freeze dev dependencies versions
 - Update GitHub actions dependencies
+- Add tests for PyPy 3.10 and 3.11
 
 ## [0.5.0] - 2023-02-27
 

pytest.ini

@@ -4,8 +4,6 @@ addopts =
     --strict-markers
 filterwarnings =
     error
-    # issue in standard lib for PyPy < 3.9
-    ignore:Using or importing the ABCs from 'collections':DeprecationWarning:_lzma
 markers =
     generate_integration_files
     integration

setup.cfg

@@ -19,8 +19,6 @@ classifiers =
     Programming Language :: Python
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
@@ -32,9 +30,7 @@ classifiers =
 include_package_data = True
 package_dir = =src
 packages = xz
-python_requires = >=3.7
+python_requires = >=3.9
 setup_requires =
     setuptools_scm
     wheel
-install_requires =
-    typing-extensions>=4.5.0;python_version<"3.8"

src/xz/typing.py

@@ -1,21 +1,8 @@
+from collections.abc import Mapping, Sequence
 from os import PathLike
-import sys
-from typing import TYPE_CHECKING, Any, BinaryIO, Optional, Union
+from typing import TYPE_CHECKING, Any, BinaryIO, Literal, Optional, Protocol, Union
 
-if sys.version_info >= (3, 9):  # pragma: no cover
-    from collections.abc import Mapping, Sequence
-
-    _LZMAFilenameType = Union[str, bytes, PathLike[str], PathLike[bytes], BinaryIO]
-else:  # pragma: no cover
-    from typing import Mapping, Sequence
-
-    _LZMAFilenameType = Union[str, bytes, PathLike, BinaryIO]
-
-
-if sys.version_info >= (3, 8):  # pragma: no cover
-    from typing import Literal, Protocol
-else:  # pragma: no cover
-    from typing_extensions import Literal, Protocol
+_LZMAFilenameType = Union[str, bytes, PathLike[str], PathLike[bytes], BinaryIO]
 
 
 if TYPE_CHECKING:  # pragma: no cover

src/xz/utils.py

@@ -1,13 +1,7 @@
 from bisect import bisect_right, insort_right
-import sys
+from collections.abc import Iterator, MutableMapping
 from typing import Any, Dict, Generic, List, Tuple, TypeVar, cast
 
-if sys.version_info >= (3, 9):  # pragma: no cover
-    from collections.abc import Iterator, MutableMapping
-else:  # pragma: no cover
-    from typing import Iterator, MutableMapping
-
-
 T = TypeVar("T")
 
 

tests/conftest.py

@@ -1,15 +1,10 @@
+from collections.abc import Callable, Iterator
 from itertools import chain, product
 from pathlib import Path
-import sys
 from typing import List, Tuple
 
 import pytest
 
-if sys.version_info >= (3, 9):  # pragma: no cover
-    from collections.abc import Callable, Iterator
-else:  # pragma: no cover
-    from typing import Callable, Iterator
-
 
 def pytest_addoption(parser: pytest.Parser) -> None:
     parser.addoption(

tests/integration/test_ram_usage.py

@@ -1,8 +1,8 @@
+from collections.abc import Callable, Iterator
 from io import DEFAULT_BUFFER_SIZE
 from lzma import compress
 from pathlib import Path
-from random import seed
-import sys
+from random import randbytes, seed
 from typing import BinaryIO, Optional, cast
 
 import pytest
@@ -11,16 +11,6 @@
 from xz.common import create_xz_index_footer, parse_xz_footer, parse_xz_index
 from xz.io import IOCombiner, IOStatic
 
-if sys.version_info >= (3, 9):
-    from collections.abc import Callable, Iterator
-    from random import randbytes
-else:
-    from random import getrandbits
-    from typing import Callable, Iterator
-
-    def randbytes(length: int) -> bytes:
-        return getrandbits(length * 8).to_bytes(length, "little")
-
 
 @pytest.fixture
 def ram_usage() -> Iterator[Callable[[], int]]:

tests/integration/test_readme.py

@@ -1,19 +1,14 @@
+from collections.abc import Iterator
 import doctest
 import os
 from pathlib import Path
 import shutil
-import sys
 from typing import List, Optional, Tuple
 
 import pytest
 
 import xz
 
-if sys.version_info >= (3, 9):  # pragma: no cover
-    from collections.abc import Iterator
-else:  # pragma: no cover
-    from typing import Iterator
-
 
 @pytest.fixture(autouse=True)
 def change_dir(tmp_path: Path) -> Iterator[None]:

tests/unit/test_block.py

@@ -1,5 +1,5 @@
+from collections.abc import Callable, Iterator
 from io import SEEK_SET, BytesIO, UnsupportedOperation
-import sys
 from typing import Tuple, cast
 from unittest.mock import Mock, call
 
@@ -10,12 +10,6 @@
 from xz.common import XZError, create_xz_header, create_xz_index_footer
 from xz.io import IOAbstract, IOStatic
 
-if sys.version_info >= (3, 9):  # pragma: no cover
-    from collections.abc import Callable, Iterator
-else:  # pragma: no cover
-    from typing import Callable, Iterator
-
-
 BLOCK_BYTES = bytes.fromhex(
     "0200210116000000742fe5a3e0006300415d00209842100431d01ab285328305"
     "7ddb5924a128599cc9911a7fcff8d59c1f6f887bcee97b1f83f1808f005de273"