## Please edit system and help pages ONLY in the moinmaster wiki! For more ## information, please see MoinMaster:MoinPagesEditorGroup. ##master-page:Unknown-Page ##master-date:Unknown-Date #acl MoinPagesEditorGroup:read,write,delete,revert All:read #format wiki #language en == Updating Python == If you want to change the Python running your MoinMoin installation there are some issues to keep in mind: === Location of the MoinMoin directory === The default installation process (`setup.py`) installed the MoinMoin files into the site-packages directory of the current Python installation (for example `/usr/lib/python2.2/site-packages`). If you move to another Python interpreter you must reinstall the MoinMoin files into the new `lib/pythonX.X/site-packeges` directory. If you installed the MoinMoin files elsewhere and adjusted `sys.path` this is not a problem. === The precompiled Python files (.pyc) === Python does not grant that .pyc files are compatible between Python versions. If you change the Python interpreter you should recompile the Python scripts. You may use {{{ python -c "import compileall; compileall.compile_dir('/path/to/MoinMoin')" }}} for this. If you reinstall MoinMoin for the new interpreter the step is not needed/done by setup.py. === Empty Page Cache === The page cache uses Python byte code for faster page rendering. To avoid compatibility problems you should empty the cache by hand by deleting all files in `data/pages/*/cache/` and `underlay/pages/*/cache/`.