Enum VersionRequest 

pub enum VersionRequest {
    Default,
    Any,
    Major(u8, PythonVariant),
    MajorMinor(u8, u8, PythonVariant),
    MajorMinorPatch(u8, u8, u8, PythonVariant),
    MajorMinorPrerelease(u8, u8, Prerelease, PythonVariant),
    MajorMinorPatchPrerelease(u8, u8, u8, Prerelease, PythonVariant),
    Range(VersionSpecifiers, PythonVariant),
}

A Python discovery version request.

Variants

Default

Allow an appropriate default Python version.

Any

Allow any Python version.

Major(u8, PythonVariant)

MajorMinor(u8, u8, PythonVariant)

MajorMinorPatch(u8, u8, u8, PythonVariant)

MajorMinorPrerelease(u8, u8, Prerelease, PythonVariant)

MajorMinorPatchPrerelease(u8, u8, u8, Prerelease, PythonVariant)

Range(VersionSpecifiers, PythonVariant)

Implementations

impl VersionRequest

pub fn from_specifiers( specifiers: VersionSpecifiers, variant: PythonVariant, ) -> Self

Create a VersionRequest from VersionSpecifiers.

If the specifiers consist of a single == constraint, the version is parsed as a concrete version request (e.g., MajorMinorPatch) rather than a range.

pub fn only_minor(self) -> Self

Drop any patch or prerelease information from the version request.

pub fn without_python_variant(self) -> Self

Return a new VersionRequest with the PythonVariant if it has one.

This is useful for converting the string representation to pep440.

pub fn as_pep440_version(&self) -> Option<Version>

Convert this request into a concrete PEP 440 Version when possible.

Returns None for non-concrete requests

pub fn as_version_specifiers(&self) -> Option<VersionSpecifiers>

Convert this request into VersionSpecifiers representing the range of compatible versions.

Returns None for requests without version constraints (e.g., VersionRequest::Default and VersionRequest::Any).

Trait Implementations

impl Clone for VersionRequest

fn clone(&self) -> VersionRequest

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VersionRequest

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

Formats the value using the given formatter.

impl Default for VersionRequest

fn default() -> VersionRequest

Returns the “default value” for a type.

impl Display for VersionRequest

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

Formats the value using the given formatter.

impl From<&PythonVersion> for VersionRequest

fn from(version: &PythonVersion) -> Self

Converts to this type from the input type.

impl FromStr for VersionRequest

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for VersionRequest

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for VersionRequest

fn eq(&self, other: &VersionRequest) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for VersionRequest

impl StructuralPartialEq for VersionRequest