Fixed 'import json' for simplejson compatability

1 files changed, 51 insertions, 0 deletions

diff --git a/ipalib/compat.py b/ipalib/compat.py
new file mode 100644
index 000000000..70f098b16
--- /dev/null
+++ b/ipalib/compat.py
@@ -0,0 +1,51 @@
+# Authors:
+#   Jason Gerard DeRose <jderose@redhat.com>
+#
+# Copyright (C) 2009  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 only
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+Abstracts some compatability issues for Python2.4 - Python2.6.
+
+The ``json`` module was added in Python2.6, which previously was in a seperate
+package and called ``simplejson``.  This hack abstracts the difference so you
+can use the ``json`` module generically like this:
+
+>>> from compat import json
+>>> json.dumps({'hello': 'world'})
+'{"hello": "world"}'
+
+In Python 2.6 the ``parse_qs()`` function was moved from the ``cgi`` module to
+the ``urlparse`` module.  Although ``cgi.parse_qs()`` is still available and
+only raises a ``PendingDeprecationWarning``, we still provide some
+future-proofing here so you can import ``parse_qs()`` generically like this:
+
+>>> from compat import parse_qs
+>>> parse_qs('hello=world&how=are+you%3F')
+{'how': ['are you?'], 'hello': ['world']}
+
+For more information, see *What's New in Python 2.6*:
+
+    http://docs.python.org/whatsnew/2.6.html
+"""
+
+import sys
+if sys.version_info[:2] >= (2, 6):
+    import json
+    from urlparse import parse_qs
+else:
+    import simplejson as json
+    from cgi import parse_qs