[Mailman-Developers] Pickles begone

[Barry Warsaw]

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I'm about to merge my SQLAlchemy branch to the trunk.  I'm happy  
enough with where this is going to commit to this approach going  
forward.  I wrote about it a bit in a news article on wiki.list.org  
and I'll try to elaborate there when things settle down.

This stuff could definitely use more testing, but the web u/i and  
sending mail through the system work for me.  If you're using the  
trunk regularly now, you will notice that there's no migration path  
yet for moving from the pickle-based storage to SQLAlchemy based  
storage.  This is what the import/export scripts are for.  You notice  
though that only bin/export is written yet.  bin/import is tops on my  
list after the merge.

I've also committed bin/export.py to the Mailman 2.1 branch.  This  
will be how you migrate MM2.1 lists to the MM trunk.  Our next  
release of MM2.1 will have this, so my plan for migration will be to  
install the latest 2.1.x (x > 9), run bin/export.py, then feed the  
resulting XML to the trunk's bin/import.  For now, you can start from  
scratch with bin/newlist or creating a list through the web.  From  
there the trunk should look and act just like you're used to.

As always, let us know what you find.  I'm eager to fix problems  
quickly.  Please don't use the SF bug tracker for problems you  
encounter on the trunk.  It would also be interesting to know if you  
try a SQLAlchemy backend other than SQLite.

- -Barry

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