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| Getting Pylons (0.9.6.1) to run on Jython ========================================= |
Pylons on Jython ================ |
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| * The ability to install Pylons and all 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: | Support more of the out of the box optional components, such as: |
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| * Paste, PasteDeploy and PasteScript | SQLAlchemy ---------- |
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| * Mako | * Frank Wierzbicki, Ariane Paoao and others have made some progress making SQLAlchemy work with MySQL via zxJDBC, but no support in SQLAlchemy proper yet. |
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| - mako uses the 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) | * Jonathan Ellis made an Oracle backend for SQLAlchemy via zxJDBC: http://pylonshq.com/pasties/77c3184b14d6936d86d13e4e65df92d2 Some other zxJDBC dialects would likely follow this example |
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| * Beaker | * 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. |
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| * nose | Jinja2 ------ |
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| - nose requires the optparse module (which Jython does not include and whose tests currently fail, last time I checked) and compiler modules (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 | 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 |
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| * Routes | 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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| - I got all of routes' tests to pass on Jython well over a year ago so I don't expect too much trouble here -pjenvey | Turbogears 2 ------------ |
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| * WebHelpers | 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 |
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| * FormEncode * 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: * SQLAlchemy - The [http://www.sqlalchemy.org/trac/ticket/672 Dialect Refactor II] ticket will need to be implemented to properly support using SQLAlchemy via Jython's DBAPI jdbc driver, [http://jython.org/Project/userguide.html#database-connectivity-in-jython zxJDBC]. - Frank Wierzbicki has done some preliminary work on using SQLAlchemy with Jython, info [http://groups.google.com/group/sqlalchemy/browse_frm/thread/d60db24fe1683a41/09320033f406d78b?hl=en&lnk=gst here], and is scheduled to give a talk at PyCon 2008: "Database development with Jython, SQLAlchemy, and Hibernate" |
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