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Python: Drop support for Python 3.7
Debian 10 is not anymore a supported distro, since Debian 12 was released on June 10, 2023. Our supported build platforms as of today all support at least 3.8 (and all of them except for Ubuntu 20.04 support 3.9): openSUSE Leap 15.5: 3.6.15 (3.11.2) CentOS Stream 8: 3.6.8 (3.8.13, 3.9.16, 3.11.4) CentOS Stream 9: 3.9.17 (3.11.4) Fedora 37: 3.11.4 Fedora 38: 3.11.4 Debian 11: 3.9.2 Debian 12: 3.11.2 Alpine 3.14, 3.15: 3.9.16 Alpine 3.16, 3.17: 3.10.10 Ubuntu 20.04 LTS: 3.8.10 Ubuntu 22.04 LTS: 3.10.12 NetBSD 9.3: 3.9.13* FreeBSD 12.4: 3.9.16 FreeBSD 13.1: 3.9.18 OpenBSD 7.2: 3.9.17 Note: NetBSD does not appear to have a default meta-package, but offers several options, the lowest of which is 3.7.15. However, "python39" appears to be a pre-requisite to one of the other packages we request in tests/vm/netbsd. Since it is safe under our supported platform policy, bump our minimum supported version of Python to 3.8. The two most interesting features to have by default include: - the importlib.metadata module, whose lack is responsible for over 100 lines of code in mkvenv.py - improvements to asyncio, for example asyncio.CancelledError inherits from BaseException rather than Exception In addition, code can now use the assignment operator ':=' Because mypy now learns about importlib.metadata, a small change to mkvenv.py is needed to pass type checking. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
a5e9fbf1df
commit
ca056f4499
8
configure
vendored
8
configure
vendored
@ -552,16 +552,16 @@ if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arc
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fi
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check_py_version() {
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# We require python >= 3.7.
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# We require python >= 3.8.
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# NB: a True python conditional creates a non-zero return code (Failure)
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"$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
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"$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
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}
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first_python=
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if test -z "${PYTHON}"; then
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# A bare 'python' is traditionally python 2.x, but some distros
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# have it as python 3.x, so check in both places.
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for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
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for binary in python3 python python3.11 python3.10 python3.9 python3.8; do
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if has "$binary"; then
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python=$(command -v "$binary")
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if check_py_version "$python"; then
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@ -952,7 +952,7 @@ then
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fi
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if ! check_py_version "$python"; then
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error_exit "Cannot use '$python', Python >= 3.7 is required." \
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error_exit "Cannot use '$python', Python >= 3.8 is required." \
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"Use --python=/path/to/python to specify a supported Python." \
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"Maybe try:" \
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" openSUSE Leap 15.3+: zypper install python39" \
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@ -9,13 +9,13 @@ help:
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@echo "make check-minreqs:"
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@echo " Run tests in the minreqs virtual environment."
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@echo " These tests use the oldest dependencies."
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@echo " Requires: Python 3.7"
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@echo " Hint (Fedora): 'sudo dnf install python3.7'"
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@echo " Requires: Python 3.8"
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@echo " Hint (Fedora): 'sudo dnf install python3.8'"
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@echo ""
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@echo "make check-tox:"
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@echo " Run tests against multiple python versions."
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@echo " These tests use the newest dependencies."
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@echo " Requires: Python 3.7 - 3.11, and tox."
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@echo " Requires: Python 3.8 - 3.11, and tox."
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@echo " Hint (Fedora): 'sudo dnf install python3-tox python3.11'"
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@echo " The variable QEMU_TOX_EXTRA_ARGS can be use to pass extra"
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@echo " arguments to tox".
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@ -59,7 +59,7 @@ PIP_INSTALL = pip install --disable-pip-version-check
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min-venv: $(QEMU_MINVENV_DIR) $(QEMU_MINVENV_DIR)/bin/activate
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$(QEMU_MINVENV_DIR) $(QEMU_MINVENV_DIR)/bin/activate: setup.cfg tests/minreqs.txt
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@echo "VENV $(QEMU_MINVENV_DIR)"
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@python3.7 -m venv $(QEMU_MINVENV_DIR)
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@python3.8 -m venv $(QEMU_MINVENV_DIR)
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@( \
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echo "ACTIVATE $(QEMU_MINVENV_DIR)"; \
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. $(QEMU_MINVENV_DIR)/bin/activate; \
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@ -435,6 +435,7 @@ def _gen_importlib(packages: Sequence[str]) -> Iterator[str]:
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try:
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# First preference: Python 3.8+ stdlib
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from importlib.metadata import ( # type: ignore
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EntryPoint,
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PackageNotFoundError,
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distribution,
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)
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@ -442,6 +443,7 @@ def _gen_importlib(packages: Sequence[str]) -> Iterator[str]:
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logger.debug("%s", str(exc))
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# Second preference: Commonly available PyPI backport
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from importlib_metadata import ( # type: ignore
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EntryPoint,
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PackageNotFoundError,
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distribution,
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)
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@ -449,7 +451,8 @@ def _gen_importlib(packages: Sequence[str]) -> Iterator[str]:
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def _generator() -> Iterator[str]:
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for package in packages:
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try:
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entry_points = distribution(package).entry_points
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entry_points: Iterator[EntryPoint] = \
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iter(distribution(package).entry_points)
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except PackageNotFoundError:
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continue
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@ -14,7 +14,6 @@ classifiers =
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Natural Language :: English
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Operating System :: OS Independent
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Programming Language :: Python :: 3 :: Only
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Programming Language :: Python :: 3.7
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Programming Language :: Python :: 3.8
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Programming Language :: Python :: 3.9
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Programming Language :: Python :: 3.10
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@ -22,7 +21,7 @@ classifiers =
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Typing :: Typed
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[options]
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python_requires = >= 3.7
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python_requires = >= 3.8
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packages =
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qemu.qmp
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qemu.machine
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@ -76,7 +75,7 @@ exclude = __pycache__,
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[mypy]
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strict = True
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python_version = 3.7
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python_version = 3.8
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warn_unused_configs = True
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namespace_packages = True
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warn_unused_ignores = False
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@ -192,7 +191,7 @@ multi_line_output=3
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# of python available on your system to run this test.
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[tox:tox]
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envlist = py37, py38, py39, py310, py311
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envlist = py38, py39, py310, py311
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skip_missing_interpreters = true
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[testenv]
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@ -1,5 +1,5 @@
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# This file lists the ***oldest possible dependencies*** needed to run
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# "make check" successfully under ***Python 3.7***. It is used primarily
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# "make check" successfully under ***Python 3.8***. It is used primarily
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# by GitLab CI to ensure that our stated minimum versions in setup.cfg
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# are truthful and regularly validated.
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#
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@ -1,7 +1,7 @@
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[mypy]
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strict = True
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disallow_untyped_calls = False
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python_version = 3.7
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python_version = 3.8
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[mypy-qapi.schema]
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disallow_untyped_defs = False
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