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pip/pip/exceptions.py
Marcus Smith 7c83f8d3cd 1) parse with defaults set as they are naturally (vs forcing to None)
and adjust the logic to match; the result is simpler.
2) Due to #1, we can remove some hairy "format_control" hacks
3) Due to #1, we have to relax the parsing and allow:
   - multiple options per line
   - any supported option on a line with a requirement (not just
     --install-option/--global-option, although they are the only
     options that are passed into a requirement)
2015-04-24 22:32:26 -07:00

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Python

"""Exceptions used throughout package"""
from __future__ import absolute_import
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 RequirementsFileParseError(InstallationError):
"""Raised when a general error occurs parsing a requirements file line."""
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."""