"""Exceptions used throughout package"""
class PipError(Exception):
"""Base pip exception"""
class InstallationError(PipError):
"""General exception during installation"""
class UninstallationError(PipError):
"""General exception during uninstallation"""
class DistributionNotFound(InstallationError):
"""Raised when a distribution cannot be found to satisfy a requirement"""
class BestVersionAlreadyInstalled(PipError):
"""Raised when the most up-to-date version of a package is already
installed. """
class BadCommand(PipError):
"""Raised when virtualenv or a command is not found"""
class CommandError(PipError):
"""Raised when there is an error in command-line arguments"""
class PreviousBuildDirError(PipError):
"""Raised when there's a previous conflicting build directory"""
class HashMismatch(InstallationError):
"""Distribution file hash values don't match."""
class InvalidWheelFilename(InstallationError):
"""Invalid wheel filename."""
class UnsupportedWheel(InstallationError):
"""Unsupported wheel."""
