zeroinstall/__init__.py

   1 """
   2 The Python implementation of the Zero Install injector is divided into five sub-packages:
   3
   4  - L{zeroinstall.cmd} contains one module for each 0install sub-command (providing the shell-scripting interface)
   5  - L{zeroinstall.injector} contains most of the interesting stuff for managing feeds, keys and downloads and for selecting versions
   6  - L{zeroinstall.zerostore} contains low-level code for handling the implementation cache (where unpacked packages are stored)
   7  - L{zeroinstall.gtkui} contains code for making GTK user-interfaces
   8  - L{zeroinstall.support} contains helper code (not really specific to Zero Install)
   9
  10 @copyright: (C) 2010, Thomas Leonard
  11 @see: U{http://0install.net}
  12
  13 @var _: a function for translating strings using the zero-install domain (for use internally by Zero Install)
  14 """
  15
  16 version = '0.54'
  17
  18 import gettext
  19 from os.path import dirname, join
  20
  21 try:
  22         localedir = None
  23         translation = gettext.translation('zero-install', fallback = False)
  24 except:
  25         localedir = join(dirname(dirname(__file__)), 'share', 'locale')
  26         translation = gettext.translation('zero-install',
  27                                 localedir = localedir,
  28                                 fallback = True)
  29 _ = translation.ugettext
  30
  31 class SafeException(Exception):
  32         """An exception that can be reported to the user without a stack trace.
  33         The command-line interface's C{--verbose} option will display the full stack trace."""
  34
  35 class NeedDownload(SafeException):
  36         """Thrown if we tried to start a download and downloading is
  37         disabled."""
  38         def __init__(self, url):
  39                 Exception.__init__(self, _("Would download '%s'") % url)