The main setuptools PEP 517 backend is intended for
explicit usage in `pyproject.toml`, when the project
authors can ensure that their `setup.py` runs without
that directory being implicitly on `sys.path`.
For implicit usage, setuptools now offers a separate
legacy backend that more closely mimics direct
execution of the `setup.py` script.
The message looks like this:
File "setup.py" not found. Directory cannot be installed in editable
mode: <absolute-dir-path>
(A "pyproject.toml" file was found, but editable mode currently
requires a setup.py based build.)
- check build requirements for conflicts
- better isolation (ignore system site packages)
- support 2 prefixes: a "normal" one, and an "overlay" one
(with higher priority over "normal")
- cleanup virtualenv creation code
- ensure all testing virtual environments use a recent version
of setuptools / wheel, making it easier to switch to custom
versions of those, as well as reducing network accesses
- reduce size of testing virtual environment, slightly speeding
up the testsuite
* Move dist restriction options to be re-usable (between install/download)
* Make dist restriction options usable in `install` (exclusively with --target)
* Add a check_supported_wheels bool to RequiriementSet for non-resolved (full path) dependencies
Offload more work to the underlying pip command used to install the
build requirements, so there's no need to duplicate code to handle
environment markers/extras. This is done by setting the correct options
from the finder passed in argument to `_install_build_reqs`.
- avoid hitting the index: use `common_wheels`/`script.pip_install_local`
- use `script.pip(..., use_module=True)` to simplify some tests
- improve `test_pep518_uses_build_env` parametrization
- simplify `test_pep518_with_user_pip`: we only need to check build
requirements can be installed, so no need for testing with both
`install` and `wheel` command
- fix `test_pip_wheel_with_pep518_build_reqs_no_isolation`: building
pep518-3.0 without isolation should fail if the build requirements
are not installed.
* fix build environment handling when using PyPy
* do use the build environment for all build commands
* allow installing and building a wheel of a PEP 518 enabled
package without prior installation of setuptools and/or wheels
* fix check for minimum supported requirements for PEP 518 support:
- correctly handle complex requirements
- both setuptools and wheels are needed
This test relies on buggy setuptools behaviour (keeping
requirements with environment markers in install_requires,
rather than moving them to extras_require) which has been
fixed in recent setuptools versions.
The use of environment markers implies that the user expects the
packages to not be installed in some cases (eg depending on version
of Python), so the log output shouldn't be classed as a warning,
particularly since this results in it being sent to `stderr` rather
than `stdout`.
Fixes#4876.
This essentially allows me to do an overall check general check by running the tests using pytest's `-k basic` syntax. Given that I like running tests often and that, in general, I make typos more often than changes that break core functionality, I think this will reduce cycle times for me.
