Struct PythonResourcesState

pub struct PythonResourcesState<'a, X>
where
    [X]: ToOwned<Owned = Vec<X>>,
{ /* private fields */ }

Defines Python resources available for import.

Implementations

impl<'a> PythonResourcesState<'a, u8>

pub fn new_from_env() -> Result<PythonResourcesState<'a, u8>, &'static str>

Construct an instance from environment state.

pub fn current_exe(&self) -> &Path

Obtain the path of the current executable.

pub fn set_current_exe(&mut self, path: PathBuf)

Set the path of the current executable.

pub fn origin(&self) -> &Path

Obtain the source path that relative paths are relative to.

pub fn set_origin(&mut self, path: PathBuf)

Set the source path that relative paths are relative to.

pub fn index_data(&mut self, data: &'a [u8]) -> Result<(), &'static str>

Load resources by parsing a blob.

If an existing entry exists, the new entry will be merged into it. Set fields on the incoming entry will overwrite fields on the existing entry.

If an entry doesn’t exist, the resource will be inserted as-is.

pub fn index_path_memory_mapped( &mut self, path: impl AsRef<Path>, ) -> Result<(), String>

Load resources data from a filesystem path using memory mapped I/O.

pub fn index_pyobject( &mut self, py: Python<'_>, obj: &PyAny, ) -> Result<(), PyErr>

Load resources from packed data stored in a PyObject.

The PyObject must conform to the buffer protocol.

pub fn index_interpreter_builtin_extension_modules( &mut self, ) -> Result<(), &'static str>

Load builtin modules from the Python interpreter.

pub fn index_interpreter_frozen_modules(&mut self) -> Result<(), &'static str>

Load frozen modules from the Python interpreter.

pub fn index_interpreter_builtins(&mut self) -> Result<(), &'static str>

Load resources that are built-in to the Python interpreter.

If this instance’s resources are being used by the sole Python importer, this needs to be called to ensure modules required during interpreter initialization are indexed and loadable by our importer.

pub fn has_resource(&self, name: &str) -> bool

Says whether a named resource exists.

pub fn add_resource<'resource>( &mut self, resource: Resource<'resource, u8>, ) -> Result<(), &'static str>

where 'resource: 'a,

Add a resource to the instance.

Memory in the resource must live for at least as long as the lifetime of the resources this instance was created with.

pub fn resolve_importable_module( &self, name: &str, optimize_level: BytecodeOptimizationLevel, ) -> Option<ImportablePythonModule<'_, u8>>

Attempt to resolve an importable Python module.

pub fn get_package_resource_file<'p>( &self, py: Python<'p>, package: &str, resource_name: &str, ) -> Result<Option<&'p PyAny>, PyErr>

Obtain a single named resource in a package.

Err occurs if loading the resource data fails. Ok(None) is returned if the resource does not exist. Otherwise the returned PyObject is a file-like object to read the resource data.

pub fn is_package_resource(&self, package: &str, resource_name: &str) -> bool

Determines whether a specific package + name pair is a known Python package resource.

pub fn package_resource_names<'p>( &self, py: Python<'p>, package: &str, ) -> Result<&'p PyAny, PyErr>

Obtain the resources available in a Python package, as a Python list.

The names are returned in sorted order.

pub fn is_package_resource_directory(&self, package: &str, name: &str) -> bool

Whether the given resource name is a directory with resources.

pub fn package_resources_list_directory( &self, package: &str, name: &str, ) -> Vec<String>

Resolve package resources in a directory.

pub fn resolve_resource_data_from_path<'p>( &self, py: Python<'p>, path: &str, ) -> Result<&'p PyAny, PyErr>

Attempt to resolve a PyBytes for resource data given a relative path.

Raises OSerror on failure.

This method is meant to be an implementation of ResourceLoader.get_data() and should only be used for that purpose.

pub fn pkgutil_modules_infos<'p>( &self, py: Python<'p>, package_filter: Option<&str>, prefix: Option<String>, optimize_level: BytecodeOptimizationLevel, ) -> Result<&'p PyList, PyErr>

Obtain a PyList of pkgutil.ModuleInfo for known resources.

This is intended to be used as the implementation for Finder.iter_modules().

package_filter defines the target package to return results for. The empty string denotes top-level packages only.

pub fn package_distribution_names( &self, filter: impl Fn(&str) -> bool, ) -> Vec<&str>

Resolve the names of package distributions matching a name filter.

pub fn resolve_package_distribution_resource( &self, package: &str, name: &str, ) -> Result<Option<Cow<'_, [u8]>>, Error>

Resolve data belonging to a package distribution resource.

pub fn package_distribution_resource_name_is_directory( &self, package: &str, name: &str, ) -> bool

Whether a package distribution resource name is a directory.

pub fn package_distribution_resources_list_directory<'slf>( &'slf self, package: &str, name: &str, ) -> Vec<&'slf str>

Obtain contents in a package distribution resources “directory.”

pub fn resolve_in_memory_shared_library_data(&self, name: &str) -> Option<&[u8]>

Resolve content of a shared library to load from memory.

pub fn resources_as_py_list<'p>( &self, py: Python<'p>, ) -> Result<&'p PyList, PyErr>

Convert indexed resources to a PyList.

pub fn serialize_resources( &self, ignore_builtin: bool, ignore_frozen: bool, ) -> Result<Vec<u8>, Error>

Serialize resources contained in this data structure.

ignore_built and ignore_frozen specify whether to ignore built-in extension modules and frozen modules, respectively.

Trait Implementations

impl<'a, X> Debug for PythonResourcesState<'a, X>

where X: Debug, [X]: ToOwned<Owned = Vec<X>>,

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'a> Default for PythonResourcesState<'a, u8>

fn default() -> PythonResourcesState<'a, u8>

Returns the “default value” for a type.

impl<'a, 'config: 'a> TryFrom<&ResolvedOxidizedPythonInterpreterConfig<'config>> for PythonResourcesState<'a, u8>

type Error = NewInterpreterError

The type returned in the event of a conversion error.

fn try_from( config: &ResolvedOxidizedPythonInterpreterConfig<'config>, ) -> Result<Self, Self::Error>

Performs the conversion.