/shabti/templates/moinmoin/data/moin/underlay/pages/HelpOnUpdatingPython/revisions/00000001
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- ## Please edit system and help pages ONLY in the master wiki!
- ## For more information, please see MoinMoin:MoinDev/Translation.
- ##master-page:Unknown-Page
- ##master-date:Unknown-Date
- #acl -All:write Default
- #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/python2.4/site-packages`). If you move to another Python interpreter you must reinstall the MoinMoin files into the new `lib/pythonX.X/site-packages` 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/`.