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dependence.freeze

_iter_sort_dependents_last 

_iter_sort_dependents_last(
    requirements: collections.abc.Iterable[str],
) -> collections.abc.Iterable[str]

Sort requirements such that dependents are first and dependencies are last.

Source code in src/dependence/freeze.py 
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def _iter_sort_dependents_last(requirements: Iterable[str]) -> Iterable[str]:
    """
    Sort requirements such that dependents are first and dependencies are last.
    """
    requirements = list(requirements)
    distribution_name: str
    distribution_requirement: dict[str, str] = {
        get_requirement_string_distribution_name(requirement): requirement
        for requirement in requirements
    }
    dependent_dependencies: dict[str, MutableSet[str]] = {
        distribution_name: get_required_distribution_names(requirement)
        for distribution_name, requirement in distribution_requirement.items()
    }
    while dependent_dependencies:
        dependent: str
        dependencies: MutableSet[str]
        item: tuple[str, MutableSet[str]]
        for dependent, dependencies in sorted(  # noqa: C414
            tuple(dependent_dependencies.items()),
            key=lambda item: item[0].lower(),
        ):

            def is_non_circular_requirement(
                dependency: str,
                dependent: str,
            ) -> bool:
                """
                Return `True` if the dependency is still among the unaccounted
                for requirements, and is not a circular reference
                """
                return (dependency in dependent_dependencies) and (
                    # Exclude interdependent distributions
                    # (circular references)
                    dependent not in dependent_dependencies[dependency]
                )

            if (not dependencies) or not any(
                map(
                    partial(is_non_circular_requirement, dependent=dependent),
                    dependencies,
                )
            ):
                yield distribution_requirement.pop(dependent)
                del dependent_dependencies[dependent]

get_frozen_requirements 

get_frozen_requirements(
    requirements: collections.abc.Iterable[str] = (),
    *,
    exclude: collections.abc.Iterable[str] = (),
    exclude_recursive: collections.abc.Iterable[str] = (),
    no_version: collections.abc.Iterable[str] = (),
    dependency_order: bool = False,
    reverse: bool = False,
    depth: int | None = None,
    include_pointers: tuple[str, ...] = (),
    exclude_pointers: tuple[str, ...] = ()
) -> tuple[str, ...]

Get the (frozen) requirements for one or more specified distributions or configuration files.

Parameters:

  • requirements (collections.abc.Iterable[str], default: () ) –

    One or more requirement specifiers (for example: "requirement-name[extra-a,extra-b]" or ".[extra-a, extra-b]) and/or paths to a setup.cfg, pyproject.toml, tox.ini or requirements.txt file

  • exclude (collections.abc.Iterable[str], default: () ) –

    One or more distributions to exclude/ignore

  • exclude_recursive (collections.abc.Iterable[str], default: () ) –

    One or more distributions to exclude/ignore. Note: Excluding a distribution here excludes all requirements which would be identified through recursion.

  • no_version (collections.abc.Iterable[str], default: () ) –

    Exclude version numbers from the output (only return distribution names)

  • dependency_order (bool, default: False ) –

    Sort requirements so that dependents precede dependencies

  • depth (int | None, default: None ) –

    Depth of recursive requirement discovery

  • include_pointers (tuple[str, ...], default: () ) –

    A tuple of JSON pointers indicating elements to include (defaults to all elements). Only applies to TOML files.

  • exclude_pointers (tuple[str, ...], default: () ) –

    A tuple of JSON pointers indicating elements to exclude (defaults to no exclusions). Only applies to TOML files.

Source code in src/dependence/freeze.py 
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def get_frozen_requirements(
    requirements: Iterable[str] = (),
    *,
    exclude: Iterable[str] = (),
    exclude_recursive: Iterable[str] = (),
    no_version: Iterable[str] = (),
    dependency_order: bool = False,
    reverse: bool = False,
    depth: int | None = None,
    include_pointers: tuple[str, ...] = (),
    exclude_pointers: tuple[str, ...] = (),
) -> tuple[str, ...]:
    """
    Get the (frozen) requirements for one or more specified distributions or
    configuration files.

    Parameters:
        requirements: One or more requirement specifiers (for example:
            "requirement-name[extra-a,extra-b]" or ".[extra-a, extra-b]) and/or
            paths to a setup.cfg, pyproject.toml, tox.ini or requirements.txt
            file
        exclude: One or more distributions to exclude/ignore
        exclude_recursive: One or more distributions to exclude/ignore.
            Note: Excluding a distribution here excludes all requirements which
            would be identified through recursion.
        no_version: Exclude version numbers from the output
            (only return distribution names)
        dependency_order: Sort requirements so that dependents
            precede dependencies
        depth: Depth of recursive requirement discovery
        include_pointers: A tuple of JSON pointers indicating elements to
            include (defaults to all elements). Only applies to TOML files.
        exclude_pointers: A tuple of JSON pointers indicating elements to
            exclude (defaults to no exclusions). Only applies to TOML files.
    """
    # Separate requirement strings from requirement files
    if isinstance(requirements, str):
        requirements = {requirements}
    else:
        requirements = set(requirements)
    if isinstance(no_version, str):
        no_version = (no_version,)
    elif not isinstance(no_version, tuple):
        no_version = tuple(no_version)
    requirement_files: MutableSet[str] = set(
        filter(is_configuration_file, requirements)
    )
    requirement_strings: MutableSet[str] = cast(
        MutableSet[str], requirements - requirement_files
    )
    frozen_requirements: Iterable[str] = iter_distinct(
        chain(
            requirement_strings,
            *map(
                partial(
                    iter_configuration_file_requirement_strings,
                    include_pointers=include_pointers,
                    exclude_pointers=exclude_pointers,
                ),
                requirement_files,
            ),
        )
    )
    if depth is not None:
        depth -= 1
    if (depth is None) or depth >= 0:
        frozen_requirements = _iter_frozen_requirements(
            frozen_requirements,
            exclude=set(
                chain(
                    # Exclude requirement strings which are *not*
                    # distribution names (such as editable package paths),
                    # as in these cases we are typically looking for this
                    # package's dependencies
                    (
                        set(
                            map(
                                get_requirement_string_distribution_name,
                                requirement_strings,
                            )
                        )
                        - set(map(normalize_name, requirement_strings))
                    ),
                    map(normalize_name, exclude),
                )
            ),
            exclude_recursive=set(map(normalize_name, exclude_recursive)),
            no_version=no_version,
            depth=depth,
        )
    if dependency_order:
        frozen_requirements = tuple(
            _iter_sort_dependents_last(frozen_requirements)
        )
        if not reverse:
            frozen_requirements = tuple(reversed(frozen_requirements))
    else:
        name: str
        frozen_requirements = tuple(
            sorted(
                frozen_requirements,
                key=lambda name: name.lower(),
                reverse=reverse,
            )
        )
    return frozen_requirements

freeze 

freeze(
    requirements: collections.abc.Iterable[str] = (),
    *,
    exclude: collections.abc.Iterable[str] = (),
    exclude_recursive: collections.abc.Iterable[str] = (),
    no_version: collections.abc.Iterable[str] = (),
    dependency_order: bool = False,
    reverse: bool = False,
    depth: int | None = None,
    include_pointers: tuple[str, ...] = (),
    exclude_pointers: tuple[str, ...] = ()
) -> None

Print the (frozen) requirements for one or more specified requirements or configuration files.

Parameters:

  • requirements (collections.abc.Iterable[str], default: () ) –

    One or more requirement specifiers (for example: "requirement-name[extra-a,extra-b]" or ".[extra-a, extra-b]) and/or paths to a setup.py, setup.cfg, pyproject.toml, tox.ini or requirements.txt file

  • exclude (collections.abc.Iterable[str], default: () ) –

    One or more distributions to exclude/ignore

  • exclude_recursive (collections.abc.Iterable[str], default: () ) –

    One or more distributions to exclude/ignore. Note: Excluding a distribution here halts recursive discovery of requirements.

  • no_version (collections.abc.Iterable[str], default: () ) –

    Exclude version numbers from the output (only print distribution names) for package names matching any of these patterns

  • dependency_order (bool, default: False ) –

    Sort requirements so that dependents precede dependencies

  • depth (int | None, default: None ) –

    Depth of recursive requirement discovery

  • include_pointers (tuple[str, ...], default: () ) –

    If this not empty, only these TOML tables will inspected (for pyproject.toml files)

  • exclude_pointers (tuple[str, ...], default: () ) –

    If not empty, these TOML tables will not be inspected (for pyproject.toml files)

Source code in src/dependence/freeze.py 
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def freeze(
    requirements: Iterable[str] = (),
    *,
    exclude: Iterable[str] = (),
    exclude_recursive: Iterable[str] = (),
    no_version: Iterable[str] = (),
    dependency_order: bool = False,
    reverse: bool = False,
    depth: int | None = None,
    include_pointers: tuple[str, ...] = (),
    exclude_pointers: tuple[str, ...] = (),
) -> None:
    """
    Print the (frozen) requirements for one or more specified requirements or
    configuration files.

    Parameters:
        requirements: One or more requirement specifiers (for example:
            "requirement-name[extra-a,extra-b]" or ".[extra-a, extra-b]) and/or
            paths to a setup.py, setup.cfg, pyproject.toml, tox.ini or
            requirements.txt file
        exclude: One or more distributions to exclude/ignore
        exclude_recursive: One or more distributions to exclude/ignore.
            Note: Excluding a distribution here halts recursive
            discovery of requirements.
        no_version: Exclude version numbers from the output
            (only print distribution names) for package names matching any of
            these patterns
        dependency_order: Sort requirements so that dependents
            precede dependencies
        depth: Depth of recursive requirement discovery
        include_pointers: If this not empty, *only* these TOML tables will
            inspected (for pyproject.toml files)
        exclude_pointers: If not empty, these TOML tables will *not* be
            inspected (for pyproject.toml files)
    """
    print(  # noqa: T201
        "\n".join(
            get_frozen_requirements(
                requirements=requirements,
                exclude=exclude,
                exclude_recursive=exclude_recursive,
                no_version=no_version,
                dependency_order=dependency_order,
                reverse=reverse,
                depth=depth,
                include_pointers=include_pointers,
                exclude_pointers=exclude_pointers,
            )
        )
    )