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) 2011, 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 = '1.9'
  17
  18 import gobject; gobject.threads_init()
  19
  20 import gettext
  21 from os.path import dirname, join
  22
  23 try:
  24         localedir = None
  25         translation = gettext.translation('zero-install', fallback = False)
  26 except:
  27         localedir = join(dirname(dirname(__file__)), 'share', 'locale')
  28         translation = gettext.translation('zero-install',
  29                                 localedir = localedir,
  30                                 fallback = True)
  31 try:
  32         _ = translation.ugettext        # Python 2
  33 except AttributeError:
  34         _ = translation.gettext         # Python 3
  35
  36 class SafeException(Exception):
  37         """An exception that can be reported to the user without a stack trace.
  38         The command-line interface's C{--verbose} option will display the full stack trace."""
  39
  40 class NeedDownload(SafeException):
  41         """Thrown if we tried to start a download and downloading is
  42         disabled."""
  43         def __init__(self, url):
  44                 Exception.__init__(self, _("Would download '%s'") % url)