Skip to main content
Version: 2.8 (deprecated)

python_tests

Generate a python_test target for each file in the sources field.

Backend: ``

dependencies​

Iterable[str] | None
default: None

Addresses to other targets that this target depends on, e.g. ['helloworld/subdir:lib'].

Alternatively, you may include file names. Pants will find which target owns that file, and create a new target from that which only includes the file in its sources field. For files relative to the current BUILD file, prefix with ./; otherwise, put the full path, e.g. ['./sibling.txt', 'resources/demo.json'].

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 ./pants list --documented :: to see all targets with descriptions.

experimental_resolve​

str | None
default: None

The resolve from [python].experimental_resolves_to_lockfiles to use, if any.

This field is highly experimental and may change without the normal deprecation policy.

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/v2.8/docs/python-interpreter-compatibility for how these interpreter constraints are merged with the constraints of dependencies.

overrides​

Dict[Union[str, Tuple[str, ...]], Dict[str, Any]] | None
default: None

Override the field values for generated python_test targets.

Expects a dictionary of relative file paths and globs to a dictionary for the overrides. You may either use a string for a single path / glob, or a string tuple for multiple paths / globs. Each override is a dictionary of field names to the overridden value.

For example:

overrides={
  "foo_test.py": {"timeout": 120]},
  "bar_test.py": {"timeout": 200]},
  ("foo_test.py", "bar_test.py"): {"tags": ["slow_tests"]},
}

File paths and globs are relative to the BUILD file's directory. Every overridden file is validated to belong to this target's sources field.

If you'd like to override a field's value for every python_test target generated by this target, change the field directly on this target rather than using the overrides field.

You can specify the same file name in multiple keys, so long as you don't override the same field more than one time for the file.

runtime_package_dependencies​

Iterable[str] | None
default: None

Addresses to targets that can be built with the ./pants package goal and whose resulting artifacts should be included in the test run.

Pants will build the artifacts as if you had run ./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 ./pants package, e.g. a pex_binary, python_awslambda, or an archive.

skip_autoflake​

bool
default: False

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

skip_bandit​

bool
default: False

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

skip_black​

bool
default: False

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

skip_docformatter​

bool
default: False

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

skip_flake8​

bool
default: False

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

skip_isort​

bool
default: False

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

skip_mypy​

bool
default: False

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

skip_pylint​

bool
default: False

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

skip_pyupgrade​

bool
default: False

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

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

sources​

Iterable[str] | None
default: ('test_*.py', '*_test.py', 'tests.py')

A list of files and globs that belong to this target.

Paths are relative to the BUILD file's directory. You can ignore files/globs by prefixing them with !.

Example: sources=['example.ext', 'test_*.ext', '!test_ignore.ext'].

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 ./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.

This only applies if the option --pytest-timeouts is set to True.