Enum SitePackagesDiscoveryError 

pub enum SitePackagesDiscoveryError {
    CanonicalizationError(SystemPathBuf, SysPrefixPathOrigin, Error, Box<dyn System>),
    PathNotExecutableOrDirectory(SystemPathBuf, SysPrefixPathOrigin, Option<Error>, Box<dyn System>),
    NoPyvenvCfgFile(SysPrefixPath, Error, Box<dyn System>),
    PyvenvCfgParseError(SystemPathBuf, PyvenvCfgParseErrorKind),
    CouldNotReadLibDirectory(SysPrefixPath, Box<dyn System>),
    NoSitePackagesDirFound(SysPrefixPath, Box<dyn System>),
}

Enumeration of ways in which site-packages discovery can fail.

Variants

CanonicalizationError(SystemPathBuf, SysPrefixPathOrigin, Error, Box<dyn System>)

site-packages discovery failed because the provided path couldn’t be canonicalized.

PathNotExecutableOrDirectory(SystemPathBuf, SysPrefixPathOrigin, Option<Error>, Box<dyn System>)

site-packages discovery failed because the provided path doesn’t appear to point to a Python executable or a sys.prefix directory.

NoPyvenvCfgFile(SysPrefixPath, Error, Box<dyn System>)

site-packages discovery failed because the SysPrefixPathOrigin indicated that the provided path should point to the sys.prefix of a virtual environment, but there was no file at <sys.prefix>/pyvenv.cfg.

PyvenvCfgParseError(SystemPathBuf, PyvenvCfgParseErrorKind)

site-packages discovery failed because the pyvenv.cfg file could not be parsed.

CouldNotReadLibDirectory(SysPrefixPath, Box<dyn System>)

site-packages discovery failed because we’re on a Unix system, we weren’t able to figure out from the pyvenv.cfg file exactly where site-packages would be relative to the sys.prefix path, and we tried to fallback to iterating through the <sys.prefix>/lib directory looking for a site-packages directory, but we came across some I/O error while trying to do so.

NoSitePackagesDirFound(SysPrefixPath, Box<dyn System>)

We looked everywhere we could think of for the site-packages directory, but none could be found despite our best endeavours.

Trait Implementations

impl Debug for SitePackagesDiscoveryError

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

Formats the value using the given formatter.

impl Display for SitePackagesDiscoveryError

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

Formats the value using the given formatter.

impl Error for SitePackagesDiscoveryError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.