Struct ExactVersion

pub struct ExactVersion {
    pub major: ComponentSize,
    pub minor: ComponentSize,
}

Specifies the major.minor version of a Python executable.

This struct is typically used to represent a found executable’s version.

Fields

major: ComponentSize

The major version of Python, e.g. 3 of 3.10.

minor: ComponentSize

The minor version of Python, e.g. 10 of 3.10.

Implementations

impl ExactVersion

pub fn new(major: ComponentSize, minor: ComponentSize) -> Self

Construct an instance of ExactVersion.

pub fn from_path(path: &Path) -> Result<Self>

Constructs a ExactVersion from a pythonX.Y file path.

Errors

If the Path is missing a file name component, Error::FileNameMissing is returned.

If the file name is not formatted appropriately, Error::PathFileNameError is returned.

When the Path cannot be converted to a &str, Error::FileNameToStrError is returned.

Examples

let expected = python_launcher::ExactVersion::new(3, 10);
let executable_path = std::path::Path::new("python3.10");
let exact_version = python_launcher::ExactVersion::from_path(executable_path);

assert_eq!(Ok(expected), exact_version);

pub fn supports(&self, requested: RequestedVersion) -> bool

Tests whether this ExactVersion satisfies the RequestedVersion.

Examples

let py3_10 = python_launcher::ExactVersion::new(3, 10);
let any_version = python_launcher::RequestedVersion::Any;
let py3_version = python_launcher::RequestedVersion::MajorOnly(3);
let py3_10_version = python_launcher::RequestedVersion::Exact(3, 10);

assert!(py3_10.supports(any_version));
assert!(py3_10.supports(py3_version));
assert!(py3_10.supports(py3_10_version));

Trait Implementations

impl Clone for ExactVersion

fn clone(&self) -> ExactVersion

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExactVersion

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

Formats the value using the given formatter.

impl Display for ExactVersion

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

Format to the format specifier, e.g. 3.9.

impl From<ExactVersion> for RequestedVersion

fn from(version: ExactVersion) -> Self

Converts to this type from the input type.

impl FromStr for ExactVersion

type Err = Error

The associated error which can be returned from parsing.

fn from_str(version_string: &str) -> Result<Self>

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

impl Hash for ExactVersion

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 Ord for ExactVersion

fn cmp(&self, other: &ExactVersion) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ExactVersion

fn eq(&self, other: &ExactVersion) -> 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 PartialOrd for ExactVersion

fn partial_cmp(&self, other: &ExactVersion) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for ExactVersion

impl Eq for ExactVersion

impl StructuralPartialEq for ExactVersion