v4.12.0
=======
* py-93259: Now raise ``ValueError`` when ``None`` or an empty
string are passed to ``Distribution.from_name`` (and other
callers).
v4.11.4
=======
* #379: In ``PathDistribution._name_from_stem``, avoid including
parts of the extension in the result.
* #381: In ``PathDistribution._normalized_name``, ensure names
loaded from the stem of the filename are also normalized, ensuring
duplicate entry points by packages varying only by non-normalized
name are hidden.
v4.11.3
=======
* #372: Removed cast of path items in FastPath, not needed.
v4.11.2
=======
* #369: Fixed bug where ``EntryPoint.extras`` was returning
match objects and not the extras strings.
v4.11.1
=======
* #367: In ``Distribution.requires`` for egg-info, if ``requires.txt``
is empty, return an empty list.
v4.11.0
=======
* bpo-46246: Added ``__slots__`` to ``EntryPoints``.
v4.10.2
=======
* #365 and bpo-46546: Avoid leaking ``method_name`` in
``DeprecatedList``.
v4.10.1
=======
v2.1.3
=======
* #361: Avoid potential REDoS in ``EntryPoint.pattern``.
v4.10.0
=======
* #354: Removed ``Distribution._local`` factory. This
functionality was created as a demonstration of the
possible implementation. Now, the
`pep517 <https://pypi.org/project/pep517>`_ package
provides this functionality directly through
`pep517.meta.load <https://github.com/pypa/pep517/blob/a942316305395f8f757f210e2b16f738af73f8b8/pep517/meta.py#L63-L73>`_.
v4.9.0
======
* Require Python 3.7 or later.
v4.8.3
======
* #357: Fixed requirement generation from egg-info when a
URL requirement is given.
v4.8.2
======
v2.1.2
======
* #353: Fixed discovery of distributions when path is empty.
v4.8.1
======
* #348: Restored support for ``EntryPoint`` access by item,
deprecating support in the process. Users are advised
to use direct member access instead of item-based access::
- ep[0] -> ep.name
- ep[1] -> ep.value
- ep[2] -> ep.group
- ep[:] -> ep.name, ep.value, ep.group
v4.8.0
======
* #337: Rewrote ``EntryPoint`` as a simple class, still
immutable and still with the attributes, but without any
expectation for ``namedtuple`` functionality such as
``_asdict``.
v4.7.1
======
* #344: Fixed regression in ``packages_distributions`` when
neither top-level.txt nor a files manifest is present.
v4.7.0
======
* #330: In ``packages_distributions``, now infer top-level
names from ``.files()`` when a ``top-level.txt``
(Setuptools-specific metadata) is not present.
v4.6.4
======
* #334: Correct ``SimplePath`` protocol to match ``pathlib``
protocol for ``__truediv__``.
v4.6.3
======
* Moved workaround for #327 to ``_compat`` module.
v4.6.2
======
* bpo-44784: Avoid errors in test suite when
DeprecationWarnings are treated as errors.
v4.6.1
======
* #327: Deprecation warnings now honor call stack variance
on PyPy.
v4.6.0
======
* #326: Performance tests now rely on
`pytest-perf <https://pypi.org/project/pytest-perf>`_.
To disable these tests, which require network access
and a git checkout, pass ``-p no:perf`` to pytest.
v4.5.0
======
* #319: Remove ``SelectableGroups`` deprecation exception
for flake8.
v4.4.0
======
* #300: Restore compatibility in the result from
``Distribution.entry_points`` (``EntryPoints``) to honor
expectations in older implementations and issuing
deprecation warnings for these cases:
- ``EntryPoints`` objects are once again mutable, allowing
for ``sort()`` and other list-based mutation operations.
Avoid deprecation warnings by casting to a
mutable sequence (e.g.
``list(dist.entry_points).sort()``).
- ``EntryPoints`` results once again allow
for access by index. To avoid deprecation warnings,
cast the result to a Sequence first
(e.g. ``tuple(dist.entry_points)[0]``).
v4.3.1
======
* #320: Fix issue where normalized name for eggs was
incorrectly solicited, leading to metadata being
unavailable for eggs.
v4.3.0
======
* #317: De-duplication of distributions no longer requires
loading the full metadata for ``PathDistribution`` objects,
entry point loading performance by ~10x.
v4.2.0
======
* Prefer f-strings to ``.format`` calls.
v4.1.0
======
* #312: Add support for metadata 2.2 (``Dynamic`` field).
* #315: Add ``SimplePath`` protocol for interface clarity
in ``PathDistribution``.
v4.0.1
======
* #306: Clearer guidance about compatibility in readme.
v4.0.0
======
* #304: ``PackageMetadata`` as returned by ``metadata()``
and ``Distribution.metadata()`` now provides normalized
metadata honoring PEP 566:
- If a long description is provided in the payload of the
RFC 822 value, it can be retrieved as the ``Description``
field.
- Any multi-line values in the metadata will be returned as
such.
- For any multi-line values, line continuation characters
are removed. This backward-incompatible change means
that any projects relying on the RFC 822 line continuation
characters being present must be tolerant to them having
been removed.
- Add a ``json`` property that provides the metadata
converted to a JSON-compatible form per PEP 566.
v3.10.1
=======
* Minor tweaks from CPython.
v3.10.0
=======
* #295: Internal refactoring to unify section parsing logic.
v3.9.1
======
* #296: Exclude 'prepare' package.
* #297: Fix ValueError when entry points contains comments.
v3.9.0
======
* Use of Mapping (dict) interfaces on ``SelectableGroups``
is now flagged as deprecated. Instead, users are advised
to use the select interface for future compatibility.
Suppress the warning with this filter:
``ignore:SelectableGroups dict interface``.
Or with this invocation in the Python environment:
``warnings.filterwarnings('ignore', 'SelectableGroups dict interface')``.
Preferably, switch to the ``select`` interface introduced
in 3.7.0. See the
`entry points documentation <https://importlib-metadata.readthedocs.io/en/latest/using.html#entry-points>`_ and changelog for the 3.6
release below for more detail.
For some use-cases, especially those that rely on
``importlib.metadata`` in Python 3.8 and 3.9 or
those relying on older ``importlib_metadata`` (especially
on Python 3.5 and earlier),
`backports.entry_points_selectable <https://pypi.org/project/backports.entry_points_selectable>`_
was created to ease the transition. Please have a look
at that project if simply relying on importlib_metadata 3.6+
is not straightforward. Background in #298.
* #283: Entry point parsing no longer relies on ConfigParser
and instead uses a custom, one-pass parser to load the
config, resulting in a ~20% performance improvement when
loading entry points.
v3.8.2
======
* #293: Re-enabled lazy evaluation of path lookup through
a FreezableDefaultDict.
v3.8.1
======
* #293: Workaround for error in distribution search.
v3.8.0
======
* #290: Add mtime-based caching for ``FastPath`` and its
lookups, dramatically increasing performance for repeated
distribution lookups.
v3.7.3
======
* Docs enhancements and cleanup following review in
`GH-24782 <https://github.com/python/cpython/pull/24782>`_.
v3.7.2
======
* Cleaned up cruft in entry_points docstring.
v3.7.1
======
* Internal refactoring to facilitate ``entry_points() -> dict``
deprecation.
v3.7.0
======
* #131: Added ``packages_distributions`` to conveniently
resolve a top-level package or module to its distribution(s).
v3.6.0
======
* #284: Introduces new ``EntryPoints`` object, a tuple of
``EntryPoint`` objects but with convenience properties for
selecting and inspecting the results:
- ``.select()`` accepts ``group`` or ``name`` keyword
parameters and returns a new ``EntryPoints`` tuple
with only those that match the selection.
- ``.groups`` property presents all of the group names.
- ``.names`` property presents the names of the entry points.
- Item access (e.g. ``eps[name]``) retrieves a single
entry point by name.
``entry_points`` now accepts "selection parameters",
same as ``EntryPoint.select()``.
``entry_points()`` now provides a future-compatible
``SelectableGroups`` object that supplies the above interface
(except item access) but remains a dict for compatibility.
In the future, ``entry_points()`` will return an
``EntryPoints`` object for all entry points.
If passing selection parameters to ``entry_points``, the
future behavior is invoked and an ``EntryPoints`` is the
result.
* #284: Construction of entry points using
``dict([EntryPoint, ...])`` is now deprecated and raises
an appropriate DeprecationWarning and will be removed in
a future version.
* #300: ``Distribution.entry_points`` now presents as an
``EntryPoints`` object and access by index is no longer
allowed. If access by index is required, cast to a sequence
first.
v3.5.0
======
* #280: ``entry_points`` now only returns entry points for
unique distributions (by name).
v3.4.0
======
* #10: Project now declares itself as being typed.
* #272: Additional performance enhancements to distribution
discovery.
* #111: For PyPA projects, add test ensuring that
``MetadataPathFinder._search_paths`` honors the needed
interface. Method is still private.
v3.3.0
======
* #265: ``EntryPoint`` objects now expose a ``.dist`` object
referencing the ``Distribution`` when constructed from a
Distribution.
v3.2.0
======
* The object returned by ``metadata()`` now has a
formally-defined protocol called ``PackageMetadata``
with declared support for the ``.get_all()`` method.
Fixes #126.
v3.1.1
======
v2.1.1
======
* #261: Restored compatibility for package discovery for
metadata without version in the name and for legacy
eggs.
v3.1.0
======
* Merge with 2.1.0.
v2.1.0
======
* #253: When querying for package metadata, the lookup
now honors
`package normalization rules <https://packaging.python.org/specifications/recording-installed-packages/>`_.
v3.0.0
======
* Require Python 3.6 or later.
v2.0.0
======
* ``importlib_metadata`` no longer presents a
``__version__`` attribute. Consumers wishing to
resolve the version of the package should query it
directly with
``importlib_metadata.version('importlib-metadata')``.
Closes #71.
v1.7.0
======
* ``PathNotFoundError`` now has a custom ``__str__``
mentioning "package metadata" being missing to help
guide users to the cause when the package is installed
but no metadata is present. Closes #124.
v1.6.1
======
* Added ``Distribution._local()`` as a provisional
demonstration of how to load metadata for a local
package. Implicitly requires that
`pep517 <https://pypi.org/project/pep517>`_ is
installed. Ref #42.
* Ensure inputs to FastPath are Unicode. Closes #121.
* Tests now rely on ``importlib.resources.files`` (and
backport) instead of the older ``path`` function.
* Support any iterable from ``find_distributions``.
Closes #122.
v1.6.0
======
* Added ``module`` and ``attr`` attributes to ``EntryPoint``
v1.5.2
======
* Fix redundant entries from ``FastPath.zip_children``.
Closes #117.
v1.5.1
======
* Improve reliability and consistency of compatibility
imports for contextlib and pathlib when running tests.
Closes #116.
v1.5.0
======
* Additional performance optimizations in FastPath now
saves an additional 20% on a typical call.
* Correct for issue where PyOxidizer finder has no
``__module__`` attribute. Closes #110.
v1.4.0
======
* Through careful optimization, ``distribution()`` is
3-4x faster. Thanks to Antony Lee for the
contribution. Closes #95.
* When searching through ``sys.path``, if any error
occurs attempting to list a path entry, that entry
is skipped, making the system much more lenient
to errors. Closes #94.
v1.3.0
======
* Improve custom finders documentation. Closes #105.
v1.2.0
======
* Once again, drop support for Python 3.4. Ref #104.
v1.1.3
======
* Restored support for Python 3.4 due to improper version
compatibility declarations in the v1.1.0 and v1.1.1
releases. Closes #104.
v1.1.2
======
* Repaired project metadata to correctly declare the
``python_requires`` directive. Closes #103.
v1.1.1
======
* Fixed ``repr(EntryPoint)`` on PyPy 3 also. Closes #102.
v1.1.0
======
* Dropped support for Python 3.4.
* EntryPoints are now pickleable. Closes #96.
* Fixed ``repr(EntryPoint)`` on PyPy 2. Closes #97.
v1.0.0
======
* Project adopts semver for versioning.
* Removed compatibility shim introduced in 0.23.
* For better compatibility with the stdlib implementation and to
avoid the same distributions being discovered by the stdlib and
backport implementations, the backport now disables the
stdlib DistributionFinder during initialization (import time).
Closes #91 and closes #100.
0.23
====
* Added a compatibility shim to prevent failures on beta releases
of Python before the signature changed to accept the
"context" parameter on find_distributions. This workaround
will have a limited lifespan, not to extend beyond release of
Python 3.8 final.
0.22
====
* Renamed ``package`` parameter to ``distribution_name``
as `recommended <https://bugs.python.org/issue34632#msg349423>`_
in the following functions: ``distribution``, ``metadata``,
``version``, ``files``, and ``requires``. This
backward-incompatible change is expected to have little impact
as these functions are assumed to be primarily used with
positional parameters.
0.21
====
* ``importlib.metadata`` now exposes the ``DistributionFinder``
metaclass and references it in the docs for extending the
search algorithm.
* Add ``Distribution.at`` for constructing a Distribution object
from a known metadata directory on the file system. Closes #80.
* Distribution finders now receive a context object that
supplies ``.path`` and ``.name`` properties. This change
introduces a fundamental backward incompatibility for
any projects implementing a ``find_distributions`` method
on a ``MetaPathFinder``. This new layer of abstraction
allows this context to be supplied directly or constructed
on demand and opens the opportunity for a
``find_distributions`` method to solicit additional
context from the caller. Closes #85.
0.20
====
* Clarify in the docs that calls to ``.files`` could return
``None`` when the metadata is not present. Closes #69.
* Return all requirements and not just the first for dist-info
packages. Closes #67.
0.19
====
* Restrain over-eager egg metadata resolution.
* Add support for entry points with colons in the name. Closes #75.
0.18
====
* Parse entry points case sensitively. Closes #68
* Add a version constraint on the backport configparser package. Closes #66
0.17
====
* Fix a permission problem in the tests on Windows.
0.16
====
* Don't crash if there exists an EGG-INFO directory on sys.path.
0.15
====
* Fix documentation.
0.14
====
* Removed ``local_distribution`` function from the API.
**This backward-incompatible change removes this
behavior summarily**. Projects should remove their
reliance on this behavior. A replacement behavior is
under review in the `pep517 project
<https://github.com/pypa/pep517>`_. Closes #42.
0.13
====
* Update docstrings to match PEP 8. Closes #63.
* Merged modules into one module. Closes #62.
0.12
====
* Add support for eggs. !65; Closes #19.
0.11
====
* Support generic zip files (not just wheels). Closes #59
* Support zip files with multiple distributions in them. Closes #60
* Fully expose the public API in ``importlib_metadata.__all__``.
0.10
====
* The ``Distribution`` ABC is now officially part of the public API.
Closes #37.
* Fixed support for older single file egg-info formats. Closes #43.
* Fixed a testing bug when ``$CWD`` has spaces in the path. Closes #50.
* Add Python 3.8 to the ``tox`` testing matrix.
0.9
===
* Fixed issue where entry points without an attribute would raise an
Exception. Closes #40.
* Removed unused ``name`` parameter from ``entry_points()``. Closes #44.
* ``DistributionFinder`` classes must now be instantiated before
being placed on ``sys.meta_path``.
0.8
===
* This library can now discover/enumerate all installed packages. **This
backward-incompatible change alters the protocol finders must
implement to support distribution package discovery.** Closes #24.
* The signature of ``find_distributions()`` on custom installer finders
should now accept two parameters, ``name`` and ``path`` and
these parameters must supply defaults.
* The ``entry_points()`` method no longer accepts a package name
but instead returns all entry points in a dictionary keyed by the
``EntryPoint.group``. The ``resolve`` method has been removed. Instead,
call ``EntryPoint.load()``, which has the same semantics as
``pkg_resources`` and ``entrypoints``. **This is a backward incompatible
change.**
* Metadata is now always returned as Unicode text regardless of
Python version. Closes #29.
* This library can now discover metadata for a 'local' package (found
in the current-working directory). Closes #27.
* Added ``files()`` function for resolving files from a distribution.
* Added a new ``requires()`` function, which returns the requirements
for a package suitable for parsing by
``packaging.requirements.Requirement``. Closes #18.
* The top-level ``read_text()`` function has been removed. Use
``PackagePath.read_text()`` on instances returned by the ``files()``
function. **This is a backward incompatible change.**
* Release dates are now automatically injected into the changelog
based on SCM tags.
0.7
===
* Fixed issue where packages with dashes in their names would
not be discovered. Closes #21.
* Distribution lookup is now case-insensitive. Closes #20.
* Wheel distributions can no longer be discovered by their module
name. Like Path distributions, they must be indicated by their
distribution package name.
0.6
===
* Removed ``importlib_metadata.distribution`` function. Now
the public interface is primarily the utility functions exposed
in ``importlib_metadata.__all__``. Closes #14.
* Added two new utility functions ``read_text`` and
``metadata``.
0.5
===
* Updated README and removed details about Distribution
class, now considered private. Closes #15.
* Added test suite support for Python 3.4+.
* Fixed SyntaxErrors on Python 3.4 and 3.5. !12
* Fixed errors on Windows joining Path elements. !15
0.4
===
* Housekeeping.
0.3
===
* Added usage documentation. Closes #8
* Add support for getting metadata from wheels on ``sys.path``. Closes #9
0.2
===
* Added ``importlib_metadata.entry_points()``. Closes #1
* Added ``importlib_metadata.resolve()``. Closes #12
* Add support for Python 2.7. Closes #4
0.1
===
* Initial release.
..
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