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| Pylons (0.9.6.1) on Jython Requirements/TODO ============================================ |
Pylons on Jython ================ |
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| Installing Pylons and its dependencies -------------------------------------- |
**Status**: `Jython is supported as of Pylons 0.9.7 <http://pylonshq.com/docs/en/0.9.7/jython/>`_ |
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| * distutils and setuptools **(Mostly finished, See** `SetuptoolsOnJython`_ **)** | Pending Improvements ==================== |
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| * Ensure all dependencies' tests pass nose ---- Pylons projects require nose, but most packages (including Pylons) use nose as their own test runners. requires: * optparse module **(added in r4018)** * a fix for the cell variable (variables used in closures) bug here: http://pylonshq.com/pasties/667 **(fixed in r4038)** * fix for new.instancemethod not allowing a PyType as its class argument **(fixed in r4051)* * compiler package (and compiler requires the parser module which Jython lacks). nose only needs the compiler module to use compiler.consts.CO_GENERATOR; until there's a parser, maybe jython could provide a broken compiler module that doesn't import parser Routes ------ All tests, except some which require paste.fixture (Paste is troublesome to import at this point), pass Paste, PasteDeploy and PasteScript ---------------------------------- requires: * modulefinder module (imported in paste/__init__.py). Jython currently lacks it, and modulefinder relies on reading code objects via marshal.load * subprocess module: if it doesn't exist (Python 2.3) it uses a version copied over from CPython 2.4 (paste.util.subprocess24). paste.util.subprocess24 dies on attempting to import fcntl, so Jython needs to provide subprocess * webbrowser module: paste.fixture imports it. Jython doesn't include it. It's a pretty simple module -- though it doesn't seem to work right on Jython when launching a console browser (like lynx or links). I think it's an os.system problem Mako ---- requires: * compiler module: to parse Python code into AST. The compiler module is mostly pure Python code, but its guts are really the native parser module (which Jython lacks) Beaker ------ requires: * Paste (for paste.fixture) * base64.b64encode: might die on an attempting to import b64encode in beaker.crypto.PBKDF2 (at least it does when the tests are run) WebHelpers ---------- requires: * routes * simplejson FormEncode ---------- requires: * gettext (which requires the locale module, which Jython lacks) simplejson ---------- * `SetuptoolsOnJython`_ currently has trouble installing simplejson, because it attempts to compile its optional C extensions (that help performance). It expects to catch a distutils.errors.CCompilerError if the compilation fails, but Jython dies much earlier: File "/Users/pjenvey/src/java/jython-trunk/dist/Lib/distutils/command/build_ext.py", line 598, in get_ext_filename TypeError: cannot concatenate 'str' and 'NoneType' objects decorator --------- * Note: decorators aren't currently supported in Jython, however the decorator module doesn't actually use decorators (works on CPython 2.3) Later down the road =================== |
Support more of the out of the box optional components, such as: |
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| * The `Dialect Refactor II <http://www.sqlalchemy.org/trac/ticket/672>`_ ticket will need to be implemented to properly support using SQLAlchemy via Jython's DBAPI jdbc driver, `zxJDBC <http://jython.org/Project/userguide.html#database-connectivity-in-jython>`_. * Frank Wierzbicki has done some preliminary work on using SQLAlchemy with Jython, info `here <http://groups.google.com/group/sqlalchemy/browse_frm/thread/d60db24fe1683a41/09320033f406d78b?hl=en&lnk=gst>`_, and is scheduled to give a talk at PyCon 2008: "Database development with Jython, SQLAlchemy, and Hibernate" |
* Frank Wierzbicki, Ariane Paoao and others have made some progress making SQLAlchemy work with MySQL via zxJDBC, but no support in SQLAlchemy proper yet. * Jonathan Ellis made an Oracle backend for SQLAlchemy via zxJDBC: http://pylonshq.com/pasties/77c3184b14d6936d86d13e4e65df92d2 Some other zxJDBC dialects would likely follow this example * The `Dialect Refactor II <http://www.sqlalchemy.org/trac/ticket/672>`_ ticket will help properly support using SQLAlchemy via Jython's DBAPI jdbc driver, `zxJDBC <http://jython.org/Project/userguide.html#database-connectivity-in-jython>`_. Jason Kirtland has begun working on this. Jinja2 ------ Jinja2 `may work on Jython now <http://dev.pocoo.org/projects/jinja/ticket/320>`_. Its tests need to be converted to nosetests so the test suite can run on Jython to ensure this Genshi ------ Jim Baker and Ariane Paola have played around with Genshi on Jython. Its use of pyexpat is the biggest roadblock. Jython now includes a pyexpat, but it's not fully compatible with CPython's (and doesn't support all the features Genshi uses). |
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| * Jim Baker has already started playing with Genshi on the `Jython modern branch <http://fisheye3.cenqua.com/browse/jython/branches/modern>`_ | Ariane Paola made some progress porting TurboGears 2 components to Jython for Google's Summer of Code. Genshi and SQLAlchemy are the most important pieces that need porting Older details: `PylonsOnJythonOld`_ |
Pylons on Jython
Pending Improvements
Support more of the out of the box optional components, such as:
SQLAlchemy
- Frank Wierzbicki, Ariane Paoao and others have made some progress making SQLAlchemy work with MySQL via zxJDBC, but no support in SQLAlchemy proper yet.
- Jonathan Ellis made an Oracle backend for SQLAlchemy via zxJDBC: http://pylonshq.com/pasties/77c3184b14d6936d86d13e4e65df92d2 Some other zxJDBC dialects would likely follow this example
- The Dialect Refactor II ticket will help properly support using SQLAlchemy via Jython's DBAPI jdbc driver, zxJDBC. Jason Kirtland has begun working on this.
Jinja2
Jinja2 may work on Jython now. Its tests need to be converted to nosetests so the test suite can run on Jython to ensure this
Genshi
Jim Baker and Ariane Paola have played around with Genshi on Jython. Its use of pyexpat is the biggest roadblock. Jython now includes a pyexpat, but it's not fully compatible with CPython's (and doesn't support all the features Genshi uses).
Turbogears 2
Ariane Paola made some progress porting TurboGears 2 components to Jython for Google's Summer of Code. Genshi and SQLAlchemy are the most important pieces that need porting
Older details: PylonsOnJythonOld