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"""Exceptions used throughout package"""
class InstallationError(Exception):
"""General exception during installation"""
class UninstallationError(Exception):
"""General exception during uninstallation"""
class DistributionNotFound(InstallationError):
"""Raised when a distribution cannot be found to satisfy a requirement"""
class BestVersionAlreadyInstalled(Exception):
"""Raised when the most up-to-date version of a package is already
installed.
"""
class BadCommand(Exception):
"""Raised when virtualenv or a command is not found"""
class CommandError(Exception):
"""Raised when there is an error in command-line arguments"""
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