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Version: 2.14 (deprecated)

python_test


A single Python test file, written in either Pytest style or unittest style.

All test util code, including conftest.py, should go into a dedicated python_source target and then be included in the dependencies field. (You can use the python_test_utils target to generate these python_source targets.)

See https://www.pantsbuild.org/v2.14/docs/python-test-goal

Backend: pants.backend.python


source

str
required

A single file that belongs to this target.

Path is relative to the BUILD file's directory, e.g. source='example.ext'.

dependencies

Iterable[str] | None
default: None

Addresses to other targets that this target depends on, e.g. ['helloworld/subdir:lib', 'helloworld/main.py:lib', '3rdparty:reqs#django'].

This augments any dependencies inferred by Pants, such as by analyzing your imports. Use /home/josh/work/scie-pants/dist/pants dependencies or /home/josh/work/scie-pants/dist/pants peek on this target to get the final result.

See https://www.pantsbuild.org/v2.14/docs/targets for more about how addresses are formed, including for generated targets. You can also run /home/josh/work/scie-pants/dist/pants list :: to find all addresses in your project, or /home/josh/work/scie-pants/dist/pants list dir to find all addresses defined in that directory.

If the target is in the same BUILD file, you can leave off the BUILD file path, e.g. :tgt instead of helloworld/subdir:tgt. For generated first-party addresses, use ./ for the file path, e.g. ./main.py:tgt; for all other generated targets, use :tgt#generated_name.

You may exclude dependencies by prefixing with !, e.g. ['!helloworld/subdir:lib', '!./sibling.txt']. Ignores are intended for false positives with dependency inference; otherwise, simply leave off the dependency from the BUILD file.

dependencies

Iterable[str] | None
default: None

Addresses to other targets that this target depends on, e.g. ['helloworld/subdir:lib', 'helloworld/main.py:lib', '3rdparty:reqs#django'].

This augments any dependencies inferred by Pants, such as by analyzing your imports. Use /home/josh/work/scie-pants/dist/pants dependencies or /home/josh/work/scie-pants/dist/pants peek on this target to get the final result.

See https://www.pantsbuild.org/v2.14/docs/targets for more about how addresses are formed, including for generated targets. You can also run /home/josh/work/scie-pants/dist/pants list :: to find all addresses in your project, or /home/josh/work/scie-pants/dist/pants list dir to find all addresses defined in that directory.

If the target is in the same BUILD file, you can leave off the BUILD file path, e.g. :tgt instead of helloworld/subdir:tgt. For generated first-party addresses, use ./ for the file path, e.g. ./main.py:tgt; for all other generated targets, use :tgt#generated_name.

You may exclude dependencies by prefixing with !, e.g. ['!helloworld/subdir:lib', '!./sibling.txt']. Ignores are intended for false positives with dependency inference; otherwise, simply leave off the dependency from the BUILD file.

description

str | None
default: None

A human-readable description of the target.

Use /home/josh/work/scie-pants/dist/pants list --documented :: to see all targets with descriptions.

extra_env_vars

Iterable[str] | None
default: None

Additional environment variables to include in test processes.

Entries are strings in the form ENV_VAR=value to use explicitly; or just ENV_VAR to copy the value of a variable in Pants's own environment.

This will be merged with and override values from [test].extra_env_vars.

interpreter_constraints

Iterable[str] | None
default: None

The Python interpreters this code is compatible with.

Each element should be written in pip-style format, e.g. CPython==2.7.* or CPython>=3.6,<4. You can leave off CPython as a shorthand, e.g. >=2.7 will be expanded to CPython>=2.7.

Specify more than one element to OR the constraints, e.g. ['PyPy==3.7.*', 'CPython==3.7.*'] means either PyPy 3.7 or CPython 3.7.

If the field is not set, it will default to the option [python].interpreter_constraints.

See https://www.pantsbuild.org/v2.14/docs/python-interpreter-compatibility for how these interpreter constraints are merged with the constraints of dependencies.

resolve

str | None
default: None

The resolve from [python].resolves to use.

If not defined, will default to [python].default_resolve.

All dependencies must share the same value for their resolve field.

run_goal_use_sandbox

bool | None
default: None

Whether to use a sandbox when running this target. Defaults to [python].run_goal_use_sandbox.

If true, runs of this target with the run goal will copy the needed first-party sources into a temporary sandbox and run from there.

If false, runs of this target with the run goal will use the in-repo sources directly.

The former mode is more hermetic, and is closer to building and running the source as it were packaged in a pex_binary. Additionally, it may be necessary if your sources depend transitively on "generated" files which will be materialized in the sandbox in a source root, but are not in-repo.

The latter mode is similar to creating, activating, and using a virtual environment when running your files. It may also be necessary if the source being run writes files into the repo and computes their location relative to the executed files. Django's makemigrations command is an example of such a process.

runtime_package_dependencies

Iterable[str] | None
default: None

Addresses to targets that can be built with the /home/josh/work/scie-pants/dist/pants package goal and whose resulting artifacts should be included in the test run.

Pants will build the artifacts as if you had run /home/josh/work/scie-pants/dist/pants package. It will include the results in your test's chroot, using the same name they would normally have, but without the --distdir prefix (e.g. dist/).

You can include anything that can be built by /home/josh/work/scie-pants/dist/pants package, e.g. a pex_binary, python_awslambda, or an archive.

skip_autoflake

bool
default: False
backend: pants.backend.experimental.python.lint.autoflake

If true, don't run Autoflake on this target's code.

skip_bandit

bool
default: False
backend: pants.backend.python.lint.bandit

If true, don't run Bandit on this target's code.

skip_black

bool
default: False
backend: pants.backend.python.lint.black

If true, don't run Black on this target's code.

skip_docformatter

bool
default: False
backend: pants.backend.python.lint.docformatter

If true, don't run Docformatter on this target's code.

skip_flake8

bool
default: False
backend: pants.backend.python.lint.flake8

If true, don't run Flake8 on this target's code.

skip_isort

bool
default: False
backend: pants.backend.python.lint.isort

If true, don't run isort on this target's code.

skip_mypy

bool
default: False
backend: pants.backend.python.typecheck.mypy

If true, don't run MyPy on this target's code.

skip_pylint

bool
default: False
backend: pants.backend.python.lint.pylint

If true, don't run Pylint on this target's code.

skip_pyupgrade

bool
default: False
backend: pants.backend.experimental.python.lint.pyupgrade

If true, don't run pyupgrade on this target's code.

skip_tests

bool
default: False

If true, don't run this target's tests.

skip_yapf

bool
default: False
backend: pants.backend.python.lint.yapf

If true, don't run yapf on this target's code.

tags

Iterable[str] | None
default: None

Arbitrary strings to describe a target.

For example, you may tag some test targets with 'integration_test' so that you could run /home/josh/work/scie-pants/dist/pants --tag='integration_test' test :: to only run on targets with that tag.

timeout

int | None
default: None

A timeout (in seconds) used by each test file belonging to this target.

If unset, will default to [test].timeout_default; if that option is also unset, then the test will never time out. Will never exceed [test].timeout_maximum. Only applies if the option --test-timeouts is set to true (the default).

xdist_concurrency

int | None
default: None

Maximum number of CPUs to allocate to run each test file belonging to this target.

Tests are spread across multiple CPUs using pytest-xdist (https://pytest-xdist.readthedocs.io/en/latest/index.html). Use of pytest-xdist must be enabled using the [pytest].xdist_enabled option for this field to have an effect.

If pytest-xdist is enabled and this field is unset, Pants will attempt to derive the concurrency for test sources by counting the number of tests in each file.

Set this field to 0 to explicitly disable use of pytest-xdist for a target.