Lib/xml/__init__.py

   1 """Core XML support for Python.
   2
   3 This package contains four sub-packages:
   4
   5 dom -- The W3C Document Object Model.  This supports DOM Level 1 +
   6        Namespaces.
   7
   8 parsers -- Python wrappers for XML parsers (currently only supports Expat).
   9
  10 sax -- The Simple API for XML, developed by XML-Dev, led by David
  11        Megginson and ported to Python by Lars Marius Garshol.  This
  12        supports the SAX 2 API.
  13
  14 etree -- The ElementTree XML library.  This is a subset of the full
  15        ElementTree XML release.
  16
  17 """
  18
  19
  20 __all__ = ["dom", "parsers", "sax", "etree"]
  21
  22 # When being checked-out without options, this has the form
  23 # "<dollar>Revision: x.y </dollar>"
  24 # When exported using -kv, it is "x.y".
  25 __version__ = "$Revision$".split()[-2:][0]
  26
  27
  28 _MINIMUM_XMLPLUS_VERSION = (0, 8, 4)
  29
  30
  31 try:
  32     import _xmlplus
  33 except ImportError:
  34     pass
  35 else:
  36     try:
  37         v = _xmlplus.version_info
  38     except AttributeError:
  39         # _xmlplus is too old; ignore it
  40         pass
  41     else:
  42         if v >= _MINIMUM_XMLPLUS_VERSION:
  43             import sys
  44             _xmlplus.__path__.extend(__path__)
  45             sys.modules[__name__] = _xmlplus
  46         else:
  47             del v