** Description changed:
+ [ Impact ]
+
+ The version in Ubuntu 22.04 of python3-build cannot create a virtual
+ environment, which severely hampers the use of the package. While this
+ can be worked around to some extent by installing python3-virtualenv,
+ this still fails with the use of interpreters from deadsnakes.
+
+ Given the intent of the package is to cleanly build sdist and binary
+ wheels, e.g. for PyPI, the ability to work with deadsnakes
+ interpreters is extremely useful.
+
+
+ [ Test Plan ]
+
+ * Verify the current situation in a jammy instance / container:
+
+ sudo apt install python3-build python3-venv
+ mkdir myproj
+ cd myproj
+ cat << EOF > pyproject.toml
+ [build-system]
+ # Minimum requirements for the build system to execute.
+ requires = ["setuptools >= 40.6.0", "wheel", "numpy"]
+ build-backend = "setuptools.build_meta"
+ EOF
+ python3 -m build .
+
+ * Verify this fails with the error Virtual environment creation
+ failed
+ * Enable proposed (https://wiki.ubuntu.com/Testing/EnableProposed)
+ * Upgrade python3-build and check the error no longer occurs:
+
+ sudo apt install -t jammy-proposed python3-build
+ python3 -m build .
+
+ * Verify this produces a valid sdist and wheel (for UNKNOWN 0.0.0)
+
+
+ [ Regression Potential ]
+
+ Given the package does not currently work without workarounds, the
+ potential for regression is already pretty low. The backported version
+ is the same upstream version, and simply adds a single Debian patch to
+ work around the issue. The patched version was already present in
+ lunar, and worked without incident there.
+
+ There is one concerning reverse dependency, which is dh-python (which
+ relies on this package for handling pyproject builds), however in
+ mitigation I again note that the updated version worked without issue
+ in lunar.
+
+
+ [ Original Description ]
+
The version in Ubuntu 22.04 of python3-build cannot create a virtual
environment, which makes the package rather unusable.
For instance, in a directory with a file pyproject.toml like this:
# cat pyproject.toml
[build-system]
# Minimum requirements for the build system to execute.
requires = ["setuptools >= 40.6.0", "wheel", "numpy"]
build-backend = "setuptools.build_meta"
If running "python3 -m build ." one gets the following:
- # python3 -m build .
+ # python3 -m build .
* Creating venv isolated environment...
Traceback (most recent call last):
- File "/usr/lib/python3/dist-packages/build/__main__.py", line 372, in main
- built = build_call(
- File "/usr/lib/python3/dist-packages/build/__main__.py", line 229, in
build_package_via_sdist
- sdist = _build(isolation, builder, outdir, 'sdist', config_settings,
skip_dependency_check)
- File "/usr/lib/python3/dist-packages/build/__main__.py", line 140, in _build
- return _build_in_isolated_env(builder, outdir, distribution,
config_settings)
- File "/usr/lib/python3/dist-packages/build/__main__.py", line 104, in
_build_in_isolated_env
- with _IsolatedEnvBuilder() as env:
- File "/usr/lib/python3/dist-packages/build/env.py", line 104, in __enter__
- executable, scripts_dir = _create_isolated_env_venv(self._path)
- File "/usr/lib/python3/dist-packages/build/env.py", line 258, in
_create_isolated_env_venv
- executable, script_dir, purelib = _find_executable_and_scripts(path)
- File "/usr/lib/python3/dist-packages/build/env.py", line 303, in
_find_executable_and_scripts
- raise RuntimeError(f'Virtual environment creation failed, executable
{executable} missing')
+ File "/usr/lib/python3/dist-packages/build/__main__.py", line 372, in main
+ built = build_call(
+ File "/usr/lib/python3/dist-packages/build/__main__.py", line 229, in
build_package_via_sdist
+ sdist = _build(isolation, builder, outdir, 'sdist', config_settings,
skip_dependency_check)
+ File "/usr/lib/python3/dist-packages/build/__main__.py", line 140, in _build
+ return _build_in_isolated_env(builder, outdir, distribution,
config_settings)
+ File "/usr/lib/python3/dist-packages/build/__main__.py", line 104, in
_build_in_isolated_env
+ with _IsolatedEnvBuilder() as env:
+ File "/usr/lib/python3/dist-packages/build/env.py", line 104, in __enter__
+ executable, scripts_dir = _create_isolated_env_venv(self._path)
+ File "/usr/lib/python3/dist-packages/build/env.py", line 258, in
_create_isolated_env_venv
+ executable, script_dir, purelib = _find_executable_and_scripts(path)
+ File "/usr/lib/python3/dist-packages/build/env.py", line 303, in
_find_executable_and_scripts
+ raise RuntimeError(f'Virtual environment creation failed, executable
{executable} missing')
RuntimeError: Virtual environment creation failed, executable
/tmp/build-env-iz5c20gn/local/bin/python missing
ERROR Virtual environment creation failed, executable /tmp/build-env-
iz5c20gn/local/bin/python missing
This seems to be the same error as reported elsewhere
(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1009916,
https://github.com/pypa/build/pull/463).
The patched version python3-build 0.7.0-3 in Ubuntu 22.10 already fixes that.
It would be great if the patch is also applied to Ubuntu 22.04, since
otherwise the main method to build python packages is kind of broken in
an Ubuntu LTS version.
The patch seems to be this one (but I have not tried it myself):
https://sources.debian.org/src/python-build/0.7.0-3/debian/patches/debian-sysconfig-layouts.patch/
Thank you!
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: python3-build 0.7.0-2
ProcVersionSignature: Ubuntu 4.15.0-189.200-generic 4.15.18
Uname: Linux 4.15.0-189-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Fri Oct 7 01:08:34 2022
PackageArchitecture: all
SourcePackage: python-build
UpgradeStatus: No upgrade log present (probably fresh install)
** Changed in: python-build (Ubuntu)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/1992108
Title:
[SRU] python3-build cannot create venv virtual environment
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