Armin Ronacher

I am incredible happy to announce the latest release of Werkzeug 0.6, the WSGI toolkit for Python. There is so much new in this version, I am not sure where to start :)

• pending deprecations were removed and tons of bugs were fixed. Among those we now have better RFC 2068 compatibility regarding cookie quoting.
• the FileStorage object now gives you access to the multipart headers. Also the Google Chrome plaintext file-upload handled as form data is gone now.
• The URL routing system is now able to give you back the URL rule object instead of the endpoint. This makes it possible to put more information onto a rule. This can be used to bind a rule to a function and interpolate the rule endpoint string from the function name. When matching, the rule object is returned and with that you have access to both the function and the endpoint name.
• The builtin development server now has SSL support. You can finally test your application via HTTPS without the need of an external server.
• Finally! Response objects are no longer modified in place when evaluated as WSGI application. This is a backwards incompatible change but Werkzeug will warn you if you rely on that behaviour. What does this mean to you? In a nutshell, it is now possible to share response objects between requests. Also, if you freeze a response now, the content length is set automatically.
• If you are working in multi-charset environments, you can configure the Werkzeug wrappers to support dynamic charset setting. This makes it possible to change the content type or charset and the system reacts dynamically when encoding / decoding.
• The wrappers also have a default __repr__ now which spits out useful information.
• All the builtin data structures can be pickled now.
• Huge performance improvements for the new multipart parser now. If uploads were slow for you, update right now :)
• If you are working with custom HTTP methods (such as DAV) you can now rely on the stream attribute of the wrappers being usable. Previously you had to fall back to the raw WSGI input stream instead.
• The accept objects returned for accept headers now have a best_match method that helps you guessing the best type.
• Werkzeug is finally able to work with IRIs. You can safely use unicode URLs internally now.
• Also, Werkzeug now provides a OrderedMultiDict that preserves order of form data. Use this if you need to ensure that you can process form data without changing the order. From what I've heard, that is a requirement to work with the PayPal API.
• The MoinMoin wiki people contributed many patches to improve the filesystem session support from the session contrib module. If you use filesystem sessions, you want to upgrade ASAP :)
• Werkzeug no longer utilizes the time module for header parsing. This means that finally the time parsing behaviour is consistent regarding overflows and works on a wider range of dates. Also it will no longer have undefined behaviour for invalid dates which do occur in the real world :(
• The wrappers allow you to change the collection classes used internally now.
• The Werkzeug debugger should work on the Google Appengine SDK now.

Get it while it's hot from the Python Package Index (aka cheeseshop).