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Abstracts some compatibility issues for Python 2.4 - Python 2.6.
Python 2.6
==========
The ``json`` module was added in Python 2.6, which previously was in an external
package and called ``simplejson``. The `compat` module 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
Python 2.5
==========
The ``hashlib`` module was added in Python2.5, after which use of the ``sha``
and ``md5`` modules is deprecated. You can generically import a ``sha1`` class
from the `compat` module like this:
>>> from compat import sha1
>>> sha1('hello world').hexdigest()
'2aae6c35c94fcfb415dbe95f408b9ce91ee846ed'
And generically import an ``md5`` class like this:
>>> from compat import md5
>>> md5('hello world').hexdigest()
'5eb63bbbe01eeed093cb22bb8f5acdc3'
For more information, see *What's New in Python 2.5*:
http://python.org/doc/2.5/whatsnew/whatsnew25.html
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